Car Overheats Only When Accelerating

Lack of air to the engine due to dust in air filter. 1995 Honda Civic EX 1. A car that suddenly stops in the middle of the road is a major safety hazard. Ok well, a 408 @ 11. Visit an auto service technician If your car overheats frequently, it's a good idea to have it checked out by an auto service technician who can determine if there's an underlying cause. If your car makes noise when accelerating or turning, don't ignore it. Best Answer: ok look is the service engine light on? when you turn on a a/c in a car the engine has to work a little harder to maintain everything. If the AC is turned on it starts to go back down. The engine gets upto temperature (1/2 way) normally after a few minutes drive, but when I go over 55-60 mph the water temp Gauge rises to 3/4, then drops again when I ease back to below 55 mph. Fan clutch location, diagnosis, removal and repair. Please help. Heat only when accelerating. Why does my car jump when accelerating? My Mondeo (53 plate 1. It very occasionally backfires too. The car was well maintained during its life, and I love the car. I'm in southern California and every morning I drive to work. i had my brother gently press the gas and it sounds like its coming from the water pump area. But it started getting worse and the car would overheat more easily. 7 overheating IP: Logged Message: My truck has been overheating in warm temps for quite some time now. the heat kicked on when i was driving and the car ran fine the whole way home. Simply this; under acceleration, the forces at work in a FWD vehicle pull the wheels together- but only up to a point. I pull over and waited for about 5. When I am idling, the engine is not making a knocking sound, but rather a show more I have a 2002 Jeep Liberty with 146,000 miles on it. Manual drive Brought the car 4 months ago. I'm not sure if this was happening in week #1 but it's been going on for week #2. If you have an overheating problem in traffic, keep an eye on your temperature gauge. but the car is still running hot? If we look at the source, a stock engine. Only problem is when I start the car after a break so that the engine is still hot it starts overheating after 1-2 min ( doesn´t matter if I'm driving or not). Then started to hear a whistle in the engine , but only when I accelerated. My background is no car experience, I am a helicopter mechanic and if this was an AH64 I would be done by now. but id bleed the system again to be sure 1st. I have a 1995 Chevrolet Corsica, 3. If your car makes noise when accelerating or turning, don't ignore it. If i put the car in neutral, idle it or even park the car the temp immediately starts cooling down. Hybrids not only. CarComplaints. Why would a car only overheat when driving local and not highway? Your cooling fan is not engaging turning on perhaps checking the wires to the fan and making sure power is getting to it. The car was a 1987 Mercedes 300D Turbo with the OM603 engine. I pulled over several times to avoid over heating and no somke appeared and the only thing I heard was a hissing sound next to the water pump *i think*. If your car is screeching, but only when you accelerate, there is an extremely high chance it is merely a worn or loose fan belt. Note that it has nothing to do with going uphil, only with how much you are asking from the motor. After that was done, it started overheating every time I pressed the gas. But only right at start up. My car is overheating when i acceleratei dont know why. Car Smoking from Exhaust Pipe? Do you have smoke coming out of your exhaust? Evidently many TrustMyMechanic fans do, because this is one of the most frequent “Help!” messages I get…followed by: What does it mean? How alarmed should I be? Is it safe to drive my car to work? What in the world is THIS going to cost me???. It also just did it as I drove home from school. If you want to avoid the delays and costs overheating causes, follow these tips. I open my bonnet at least once a week to look see and check for water and coolant levels and my car is only 2. The following day, I changed the thermostat but the failure is still there, it warms up more than it should. My car over heats at idle then when driving it cools down anybody had this problem. -The antifreeze looks prety clean in the radiator. I have had the radiator flushed and the coolant topped off but the problem persists. If it's not, you'll need to figure out why. What to do if you're in traffic Being stuck in a nasty jam with a car beginning to show signs of overheating is a pretty unpleasant scenario. If your blower motor slows down when accelerating, it may have nothing to do with the motor itself. ie, on high acceleration or climbing steep hills? The car is a 1997 honda accord SiR made in Japan, there is no radiator nor water leaks,thermostat was removed by dealers, and cooling fans working fine. same problem. Ask for diagnose and estimate to repair only. If your car squeals during acceleration or deceleration, it’s probably a belt. even if it does accelerate, the rev's will all of a sudden just drop and the rev's will just keep jumping. Also heater blows cold air My car has 180161 miles. But it started getting worse and the car would overheat more easily. Could it be bad gas, clogged fuel filter?. Protech: You could have a bad cylinder head gasket or leaking intake gaskets causing your overheating problem, or it just could have a large air pocket in the cooling system from when you changed the thermostat. If you cannot turn off your engine immediately, just open the windows of the car and turn on the central heating. Fans are working and coolant level is fine. It has 126,000 kilometers which is like 77k miles. My car is doing the exact same thing, if car is under 2rpm's it quickly overheats. My car decides to overheat when I am on the pedal, as soon as I let go of the gas it lowers back down to normal. Typically, if this is the cause of the sound, the noise will increase when the wheel is turned during acceleration. Then I bought my TDI, which I still have 12 years later. I checked the manifold heat shield and it was fine. 1) Clogged Fuel Filter - The fuel filter is responsible for preventing contaminants in the fuel from getting into the internal combustion chamber of the engine. But, it only starts to overheat when the gas is depressed. The water/coolant is boiling in the expansion tank at 95 degrees. By Jason Lubken. Will not accelerate, the car shudders, makes small backfire noises, almost like a car starting off in high gear, or perhaps only running 3 of 6 cyls. And still no heat. If your Chevrolet Impala is not accelerating properly, it could be due to any number of problems. Not only it is unsafe to drive under this condition but also can cause permanent damage to the engine. Today, I was getting on the highway on my way to work and the heater was working, but then, all of a sudden it goes cold and the temp slowly started to rise. My Car Has an Engine Smoking & Burning Smell but Is Not Overheating While the sages and learned men among us may espouse that where there's smoke, there's fire, sometimes — especially where engines are concerned — smoke is just smoke. This sound could be replicated as well while the car was parked and idling and I would rev it. Remember, when you get to a safe place to stop, turn off the engine, pop the hood, and wait. An overheating vehicle may display one or more of the following symptoms: A temperature gauge that is reading higher than normal and into the red; An illuminated check engine light and/or engine temperature warning light; White or black smoke from the exhaust pipe when accelerating. So the car overheats and the heater stops working whenever it isn't moving. Contrary to popular opinion, wheel alignment will only 're-align' the tires to be in the correct direction. the odd thing which i dont understand is it only makes this noise at higher speeds and only when i first hit the gas. However, I stupidly left the radiator cap off the radiator, and just before I turned into my driveway, the car was overheating, I was unable to accelerate into second gear and the Service Engine Light appeared. I pulled the heater hoses and back flushed and forward flushed the core with a hose and got all sorts of interesting looking gunk out. USUAL CAUSE Engine ping is the result of abnormally high combustion temperatures. com : Car complaints, car problems and defect information. Well my car started overheating again on September 24, 2015 hadn't had any problems with overheating since i had my water pump replaced in 2014 it just out of the blue started overheating again i don't recall hearing the fan come on but my kids and i had to pull over and wait for the car to cool down then i had a family member come & help. When i accelerate to 50-60 + mph engine cools down. One good test: make sure you have adequate coolant, and get the car on the highway and do a few quick acceleration runs. If I rev in neutral (say between 1000-1500) when the sound is 'on' it will also pick up frequency with the engine. Actually, it has not ever really gone all the way to the overheat point but it has been at 3/4 on the temp gauge. I let it hit 40mph before I pressed the brakes. SYMPTOM SUMMARY The engine "pings" or knocks on acceleration. Truck overheats when A/C is turned on. ***She also noted that out of the two electrical fans at the front of the car/radiator, only one turns on. Please help. Had a friend who bought a car that would only put out decent heat on the expressway. If it's not, you'll need to figure out why. Hi my name is Jim. Get the car quickly up to 70 MPH (120km/h) and slow back down to around 30 MPH (50km/h). Contrary to popular opinion, wheel alignment will only 're-align' the tires to be in the correct direction. So my Sonic is showing the overheating alarm on the dashboard if i've been out driving for a while, and just recently (2 days) I notice that when idle, my AC isnt blowing cold air but once I get up to speed, the AC works just fine. It didn't work but the very next day my car started to overheat. Then bleed again, again, again and again. Ok well, a 408 @ 11. At idle there is not as much heat rejection necessary and the radiator can keep the engine cool. Many vehicle manufacturers use vacuum motors to operate heating/AC doors. Replace the radiator. However, when I accelerate the temp goes right back down to the mid-line. My car has an automatic transmission. The 2001 Honda Civic has 15 problems reported for jerks when accelerating. Why is My Car Overheating When the AC Is On?. I feel the heat coming from the steering wheel and around my feet while I am driving. in Car Maintenance on October 7, 2013 Engine knocking , or pinging, is a term often used to describe an irregular sound made by a vehicle engine when there is a problem with the handling of air/fuel mixture within the cylinders. This happens every time I accelerate. My Car Overheats in Idle & Cools Down When Driving by Richard Rowe The good news is that your problem could only be one of a few things; the bad news is that the faults involved could have several causes, and you'll need to track the problem down before you can fix it. ) They did agree to let a service guy ride with me while I tried to duplicate the problem, but we never got around to it since I moved out of town the next. com "Why is my car engine over heating? What causes an engine to overheat" I hear this question all the time on my websites and es. The Honda Civic overheating is one such problem that many Honda owners have to deal with. My peugeot 406 has started to make a loud whistling noise when I accelerate. When I come to a stop light, or let off the gas, the air coming out of the vents immediatley goes back to coldeven when the temp is. The car has an overheating problem though. Heat only when accelerating. However, when returning home, the vehicle overheated again. When it starts creeping into the danger zone, look under the hood to see if your electric fan is running. The water/coolant is boiling in the expansion tank at 95 degrees. There is no bubbling until it reaches this temperature at all. The engine gets upto temperature (1/2 way) normally after a few minutes drive, but when I go over 55-60 mph the water temp Gauge rises to 3/4, then drops again when I ease back to below 55 mph. The most recently reported issues are listed below. You will want to recognise and act on these problems quickly, overheating can cause serious and costly damage to your engine. Get the car quickly up to 70 MPH (120km/h) and slow back down to around 30 MPH (50km/h). We can write this problem off as one of the penalties of old car ownership, but classic Mustangs were cursed with. Your car may not have the right circulation speed for the water pump. Your Car Keeps Overheating. After I drove about 2 miles it started to overheat but as soon as I got on the freeway it dropped down once i caught up to speed with the others cars. I open my bonnet at least once a week to look see and check for water and coolant levels and my car is only 2. I'm not sure if this was happening in week #1 but it's been going on for week #2. Unless the weather is unusually hot, it should take a few minutes for your engine to go from cold to its normal operating temperature. Although hot weather is the most common cause of overheating, many other factors can cause the same problem. Why would a car overheat going up hill? The engine works hard and produces a lot more heat than when the car is driven on a leveled road. It only cranks out heat when I accelerate whether it's in drive or parked. Not only would this be. By Jason Lubken. Car Smoking from Exhaust Pipe? Do you have smoke coming out of your exhaust? Evidently many TrustMyMechanic fans do, because this is one of the most frequent “Help!” messages I get…followed by: What does it mean? How alarmed should I be? Is it safe to drive my car to work? What in the world is THIS going to cost me???. When a car squeaks during acceleration, it is typically an indication that the fan belt has become loose or worn. This will encourage water and air flow through the radiator, helping to cool it. Just a guess: you have some kind of blockage in the cooling system. It's done 96miles on the clock. My 2007 Nissan X-Trail is overheating, very fast. Also heater blows cold air My car has 180161 miles. Why would the A/C make my car accelerate rough? My current truck feels awesome all the time because I only turn on the AC to cool it off for two minutes. Does A Car Consume More Fuel When The AC Is On HI Than On LO / Car Overheats In Traffic / Radiator Fan Only Works When AC Is Switched On GM To Release Cars With No Steering Wheel In 2019 (pics) / Photos; Fatal Accident At Alausa, Ikeja Reportedly Leaves 2 Dead / Toyota, 4 Other Auto Brands To Locate Assembly Plants In Ogun. The newer your vehicle is, the more components it contains that have to work together to provide ideal performance levels. Both pipes get hot just after a few minutes of idling, not sure if it can be the thermostat. One of the oldest Mustang gripes we can think of is engine overheating. You can ensure the long life and efficient performance of your transmission - and your car - by doing some things to make sure it does not run too hot. If it's not, you'll need to figure out why. when i first start the car and the engine is cold, the car won't accelerate, the rev's just sputter between 500 - 1000 rpm's. Why? During the night condensation or moisture can form on the inside of the distributor cap. If you want to avoid the delays and costs overheating causes, follow these tips. Liquid swishing sound behind dash only when accelerating. Hope this helps. Didnt matter if I was stopped or moving. My car will overheat and lose water when I accelerate to fast. Overheating car. However, when returning home, the vehicle overheated again. If your car is overheating, it can be very serious. It also just did it as I drove home from school. When traction is reduced by snow or ice, you need to slow the car before you turn so the tires can devote all they have to changing the direction of the car. Check engine light stays on. It shows 3rd gear, which means it was in 2nd gear waiting for you to accelerate. What would cause my car to accelerate after ive braked? I drove to work today, when I left home I felt that the car was accelerating by itself. I have only been driving the car on my days off and going about 3 trips per day in it on those days, but I am thinking of using it less and only driving it to and from work- about 14 miles per day. Overheating car. My car is overheating when i acceleratei dont know why. I have a 2014 with only 55k miles. Decreased Power and Acceleration. But, it only starts to overheat when the gas is depressed. When your exhaust is blocked, it'll keep on starting, as the pressure in the pipes dissipates, but as soon as exhaust pressure starts to bulld up again, it will cut out. I took her car to stay with me and she can drive and learn with me when over, but her car sounds horrid, like a screeching/grinding/rattling noise coming from under her bonnet and the clutch pedal only takes grip part way pressed, so I worked out this: when I am accelerating, even the slightest, there is absolutely no noise, when it is in first. I recently had the oil pan replaced and the guys told me my spark plugs, timing belt, and some pump need replacing too. This video shows some general cooling system checks, bleeding and how to use a. This will encourage water and air flow through the radiator, helping to cool it. The car is heating only when i am accelerating. i have a. Take The Pressure Of Your Engine. Even though it says its overheating the car has not pushed coolant into the expansion tank. The fans are working full time and it is when accelerating on long roads that the vehicle overheats, not when I am stopped. When I come to a stop light, or let off the gas, the air coming out of the vents immediatley goes back to coldeven when the temp is. Your compensation if you win will be the pro-rata percentage of life of the car from the time you first bring in your car to 120,000 miles. Today, it felt as if my car had slipped into neutral on its own, because I wasn’t able to move too fast and the engine would rev but there was no acceleration. com : Car complaints, car problems and defect. But, it only starts to overheat when the gas is depressed. Before that ran some sea foam through the gas tank in case it was just dirty fuel injectors. A humming, grinding or hissing car noise can end up costing you. I have a 2000 ford focus with a 2001 engine inside of it. in the city), there's a decent chance you've got an airflow issue (because there's. It looks normal, nothing broken or weird about it. If not for the head gasket problem, I'd still have the Mercedes. Had a friend who bought a car that would only put out decent heat on the expressway. Rather than accelerating quickly and then riding the brakes in stop-and-go traffic, let your engine idle forward and only accelerate as gently as possible. If only one is hot, this indicates there is a blockage in the heater core or there is air trapped in the heater core preventing proper flow. Blown Head Gasket Symptoms. Also heater blows cold air My car has 180161 miles. If your car is screeching, but only when you accelerate, there is an extremely high chance it is merely a worn or loose fan belt. However, if the sound is coming from your wheels, your breaks may be the problem. I'm tinkering with some DC motors, and have been able to drive them with a 1. There was no leak and the coolant temperature was within normal range. As soon as the engine speed decreases, the hose goes to normal and cooling resumes. 95 Honda Civic Hesitation/shaking when accelerating. *Yes, your car IS overheating, even though you don’t see clouds of steam and vapor pouring out from under the hood. It may sound strange, but it reminds me of the old days when you needed to adjust the choke. The car will not take any more coolant, and only overheats after the fan comes on. VIDA 2014D_Repack. Previously, accelerometers were simply too expensive to be commercially available. 2, 3 water pumps a fan clutch and shroud for a 3500 v-10 and still had the prob, so i swapped for an aluminum 2 row radiator (original is a single row raditor that doesnt get the job done) from jegs that was meant for a first gen camaro and a 1700cfm electric fan and i drove all summer with ac on and 0 overheating, only hard part was fabricating the brakets. Ford Fiesta - Whistle in the engine only when accelerating. Remember, when you get to a safe place to stop, turn off the engine, pop the hood, and wait. sounds like a quick whistle like noise, doesnt even last for a second. - The car was on a tow device for about 3 days while moving here. My car is doing the exact same thing, if car is under 2rpm's it quickly overheats. Certain engine faults, such as a leaking head gasket. When driving along an uphill road, the car stopped accelerating, it only reached 25 mph. [Inquiry] I occasional get an over-rev when accelerating hard. In fact, it's summer where I live, and A/C is required just about anytime you go anywhere, day OR night… so, it may have been going on a while without me noticing it. There is no coolant leak and I have replace the thermostat. it is a 1974 chevy nova car completely shuts off when accelerating from a stop or very slow speed in cold weather. As i turn on the A/C, and goes back to normal when i turn it off. Author's Note: Top 5 Signs of Engine Trouble. The car only has 95,000 miles on it because it has sat for months at a time during it's long life (this is why I had everything changed that could rust during the tune up). He said he thought it was the turbo, and took it to two other mechanics for a 2nd and 3rd opinion. Cant see any leaks at all and the level doesnt drop. Stalling of a car while driving is related to engine problems. So the car overheats and the heater stops working whenever it isn't moving. It's one of the most common reasons why a car jerks when accelerating. Average repair cost is $1,850 at 116,950 miles. Contrary to popular opinion, wheel alignment will only 're-align' the tires to be in the correct direction. If your car makes noise when accelerating or turning, don't ignore it. The engine gets upto temperature (1/2 way) normally after a few minutes drive, but when I go over 55-60 mph the water temp Gauge rises to 3/4, then drops again when I ease back to below 55 mph. This sound could be replicated as well while the car was parked and idling and I would rev it. Eventually slippage reaches the point where effective cooling is no longer possible and overheating results. Car engines are very powerful, capable of accelerating very quickly. When driving along an uphill road, the car stopped accelerating, it only reached 25 mph. com : Car complaints, car problems and defect information. The transmission will not automatically upshift. It is important you know that a clogged converter is the actual problem as replacing it can cost a lot of money and effort. It's easy to overlook but a bad clutch fan will cause overheating in stop & go traffic, while you're idling or out on the trail at low speeds. bad thermostat? or something worse. Usually when a car stays cool while driving but overheats at lights the problem is with the electric fans not kicking on when they should. Not a TDI, but your problem sounds so similar. by Kyle McFadden. I didn't take what he said as sarcasm at all, more like an interest in how the car behaves in response to overheating. or the engine could be overheating. Hope this helps. Car Over-Revs RPMs While Under Acceleration. I have a 1995 Chevrolet Corsica, 3. Looking Beyond the Cooling System for Common Overheating Cures. Protech: You could have a bad cylinder head gasket or leaking intake gaskets causing your overheating problem, or it just could have a large air pocket in the cooling system from when you changed the thermostat. weird?? it must over heat pretty quick if its only on a hill unless you climb one continuous hill lol sure the gauge isnt faulty? or is there steam etc? do a coolant pressure test on it. My background is no car experience, I am a helicopter mechanic and if this was an AH64 I would be done by now. Beware though that you will need to ensure that ALL the air is removed or it will overheat once <75% load is applied (acceleration in drive). Only thing i can offer is, in part your problem is a sensor due to the turn on and off the car (like restarting the computer) My car starts fine but 20 min into my drive it loses power and when I stop and then go it cluncks to the next gear. A car that suddenly stops in the middle of the road is a major safety hazard. My Engine is Shaking, and the Car Hesitates So your engine is idling poorly (shaking, misfiring), and you are not able to accelerate properly. The fans are working full time and it is when accelerating on long roads that the vehicle overheats, not when I am stopped. With substantial patience it is possible to accelerate to cruising speed using only electric power. When I accelerate I hear a very brief rattle for the first second of acceleration and then it goes away. 1) Clogged Fuel Filter - The fuel filter is responsible for preventing contaminants in the fuel from getting into the internal combustion chamber of the engine. Usually do not. when i first start the car and the engine is cold, the car won't accelerate, the rev's just sputter between 500 - 1000 rpm's. When the temperature gauge on a friend's 2001 Pontiac Aztek shot into the red zone, he asked me to check it out. Most vehicles have at least two of these vacuum motors. If i am revving the engine from 1000 to 2000 and back, or accelerating the heater starts working. The transmission will not automatically upshift. When driving along an uphill road, the car stopped accelerating, it only reached 25 mph. DIAGNOSE - ENGINE PINGS OR KNOCKS ON ACCELERATION. If your car makes noise when accelerating or turning, don't ignore it. But only right at start up. Read on to know what you should do when your car seems ready to overheat. I got brave and drove it home and the check engine light remained on. 2002 Mercury Marquis Overheats I Changed The Thermostat And Water Pump And It Still Overheats While Stopped At Traffic Lights It Is Ok When On The Open Road Asked by gman747 ·. If this is off by even 1 tooth, it can cause acceleration problems. - The car was on a tow device for about 3 days while moving here. So my Sonic is showing the overheating alarm on the dashboard if i've been out driving for a while, and just recently (2 days) I notice that when idle, my AC isnt blowing cold air but once I get up to speed, the AC works just fine. thanks everyone for the help, did what every including what jiggalude on AIM told me to do, worked like a champ! before the first time i did the coolant change the fans kicked on by themselves at 220-230, which i think was too late cuz then the temp shot right up. If your blower motor slows down when accelerating, it may have nothing to do with the motor itself. Your car may not immediately explode or anything like that, but driving with an overheating engine can cause serious damage to your vehicle. the car isnt overheating at this pointbut im afraid it might. Drive half a bloc. Engine Overheating when drive over 55mph? Hi, I have a Nissan Vanette e '99. Make sure the coolant cap is tight and there. Unless the weather is unusually hot, it should take a few minutes for your engine to go from cold to its normal operating temperature. You shouldn't continue to drive if you see the temperature gauge has moved towards the "hot" side. Overheating can be extremely bad for a car. The usual cause of engine ping is over advanced. I will now pretend that vacuum advance doesn’t exist. If i am revving the engine from 1000 to 2000 and back, or accelerating the heater starts working. One good test: make sure you have adequate coolant, and get the car on the highway and do a few quick acceleration runs. com we'll provide solutions for what to do if your car overheats. If this is off by even 1 tooth, it can cause acceleration problems. mechanics suggested that because it is winter, the car has to be heated up for at least 5-10 min before driving. I took her car to stay with me and she can drive and learn with me when over, but her car sounds horrid, like a screeching/grinding/rattling noise coming from under her bonnet and the clutch pedal only takes grip part way pressed, so I worked out this: when I am accelerating, even the slightest, there is absolutely no noise, when it is in first. Mechanic's Assistant: Have you checked the coolant? Have you checked for a leak in the cooling system? Yeh, even replaced the caps and the cooling system. Loud noise when accelerating So, I've been experiencing a noise when accelerating in my 1. Engine Overheating when drive over 55mph? Hi, I have a Nissan Vanette e '99. One motor is used to move a door that switches airflow “modes,” like defrost, heat, vent, etc. Would I be able to get what I need by. Probably just needs a new thermostat. Page 3-96 SL2 shuddering - slow acceleration S-Series Tech. Decreased Power and Acceleration. Only do this where it is legal! Repeat this process, monitoring coolant temperature. Already replace the thermostat but still overheating. Why does driving the cause it to overheat but not at tilde or when revving. I skimmed the head and block, replaced the gasket, but when I accelerate the water gushes out of my radiator cap and my fan does not go on. I mentioned in that last tip that no one could possibly be so ignorant as to let their car run out of coolant. The car does not overheat at idle just when accelerating. I'm in southern California and every morning I drive to work. If you cannot turn off your engine immediately, just open the windows of the car and turn on the central heating. This guide helps explain what to do if your car begins to overheat. So my Sonic is showing the overheating alarm on the dashboard if i've been out driving for a while, and just recently (2 days) I notice that when idle, my AC isnt blowing cold air but once I get up to speed, the AC works just fine. Braking generates a lot of friction, which will only turn up the heat. But only right at start up. The Honda Civic overheating is one such problem that many Honda owners have to deal with. Why would a car only overheat when driving local and not highway? Your cooling fan is not engaging turning on perhaps checking the wires to the fan and making sure power is getting to it. Ask for diagnose and estimate to repair only. I open my bonnet at least once a week to look see and check for water and coolant levels and my car is only 2. I have a 1994 Ford F150, that starts overheating as soo. My peugeot 406 has started to make a loud whistling noise when I accelerate. 2 days ago i was driving and i noticed that water was leaking. Use the bleed screw to bleed the circuit. Always check your coolant level. why your car overheats when AC is on? You may find some comfort in the fact that you are not alone in this. Started driving and the heat flowed, but only when accelerating. The water/coolant is boiling in the expansion tank at 95 degrees. When I would first start the car, engine sounded smooth and okay, but after awhile my engine would make knocking/ticking sounds when first accelerating and then for a second or two after I took the foot off the accelerator. Both 100% water and 100% antifreeze coolant mixtures exhibit inferior cooling properties. once the car is heated up fully, it does not do this at all, and there's no problems. One good test: make sure you have adequate coolant, and get the car on the highway and do a few quick acceleration runs. I'm tinkering with some DC motors, and have been able to drive them with a 1. I can rev the car up, and the temp stays normal. However, when returning home, the vehicle overheated again. had similar probs on my 98 with 5. Not only it is unsafe to drive under this condition but also can cause permanent damage to the engine. You need to chill (pun intended). It will only confuse things. If you want to avoid the delays and costs overheating causes, follow these tips. That might happen if a coolant hose bursts, but it’s far more common for an engine to overheat without any outward signs. Q: When I accelerate car does not overheat but only when I'm in idle. If the amount of brake dust you're finding is approximately similar in consistancy and volume on each wheel, I would rule out any kind of brake rotor distortion, although this will ultimately be the result if you are frequently suffering from an brake overheating problem. Visit an auto service technician If your car overheats frequently, it's a good idea to have it checked out by an auto service technician who can determine if there's an underlying cause.