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Overheating (Engines)

Engine overheating can be a common problem, but it has a variety of causes. It is good to know how to troubleshoot your overheating issues, as well as what to do when it happens.

395 Questions

Why is it not safe to open the radiator cap when engine is overheating?

When the cooling system is overheated, the coolant is at pressure. Removing the radiator cap will release the pressure, and allow the coolant to boil, probably splashing you with boiling-hot radiator fluid. Your arms and hands will certainly be burned, and there's a good chance that the boiling coolant will splash your face.

You wouldn't like it if that happens.

What causes the water temperature to overheat during stop-and-go driving in a 1991 Ford Escort?

electric cooling fan not working will cause this. Allow car to run and wacht the temp gauge, when it hits 225, it should have come on.

AnswerAlso, to force the engine fan on, turn on your air fan switch (air conditioning and heating. Doesn't have to be on the highest setting (#5), but as long as you switch it on, it will automatically turn of the fan motor. I had overheating problems myself once in my '94 LX, and that was a short cut to keep the temp down till I got where I was going. The problem I had was 2 fold, first the water temperature sensor went out and the last jerk mechanics didn't install the correct ratio of water/antifreeze mixture in the system. After finding a reliable mechanic, I trust them every year with good service for regular maintanence. Answeran add on to the answers, if you've had any service to the cooling system make sure there are no air in the system the engine will overheat.

Would your engine overheat because of transmission?

No an overheating engine will be due to leaking coolant, a faulty radiator, a faulty water pump, lack of oil or oil that needs to be changed

If your AC compressor on a 98 Saturn goes out and you unplug it will your car overheat?

Unplugging an a/c compressor shouldn't effect the heating and cooling system what so ever the only tie it has to that system is the comperessor makes the fan come on when you engage the a/c switch

How do you find the sensor that could be causing your fans not to work and your car overheat when sitting in traffic?

overheating could be caused by alot of things...OVERHEATING can damage the engine...get it checked or read up on how to... ...everyone should have a manual for their vehicle(parts store or dealer), and a local library should have professional shop manuals available in the REFERENCE section for free...make copies of the appropriate sections...read up and good luck :)

Engine Overheating problem on 1995 jeep Cherokee 4.0?

no coolant leak. no smoke or steam. no water in oil. overheats about every 125 miles. auto trans. cold air.

Does a Chrysler pt cruiser have a sensor which protects the engine from overheating?

Protects, no. The only temp sensor is the coolant temp sensor. The car will run until the engine is ruined if allowed to continue overheating.

Why does your car overheat when running lack power at high speed difficult to start and idle erraticly?

sounds like the timing is wrong.also need to do compression check for blown head gasket or cracked head.

How to fix a engine overheating problem on a 95 ford Contour at low speeds for which the radiator flush coolant and thermostat has been already done?

Could be airlocked in the heater core.what you need to do is loosen off the rad cap so it will stay with the car and drive to a hill. Point it upwards and let it idle to circulate the antifreeze. You should notice that the antifreeze level has gone down. Top it up and replace rad cap. had the very same problem, answer might surprise. make sure your battery cables on the plus side are in excellent shape. replaced mine overhaeting problem gone, radiator fan (electric) was not running at full speed. secondary check that both fans are kicking in as the temp goes up. i think there was a recall on those fans.

What causes oil to mix with water without engine overheating?

A blown head gasket or a cracked cylinder head.

Or a cracked oil cooler ( if equipped )

Is engine overheating when the air conditioning is running a sign of a blown head gasket?

Not necessarily. It's more likely a problem with the engine's cooling system: * improperly maintained coolant levels or quality * corroded and clogged radiator * faulty radiator cap * faulty water pump And if it's a newer vehicle with electric cooling fans, you should check to see that the secondary fan starts when the AC is turned on.

Would a bad alternator make a car overheat?

No, not an alternator itself. A slipping belt driving the alternator and the water pump could though.

Why could an engine overheat going uphill?

Engine straining Low coolant?

Cooling fan not working?

Plugged or restricted radiator?

Water pump?

System airbound?

Defective radiator cap?

How do you troubleshoot an engine overheating in a 1993 town n country?

Low coolant? Radiator plugged or restricted? Cooling fan not working? Water pump not circulating coolant? Thermostat not opening? System airbound? Hoses collapsing? Defective radiator cap?

Can the thermostat on my 1995 cutlass supreme be the reason my car is overheating without any engine or radiator leaks?

A thermostat that is stuck in the closed position is a very common cause of overheating. A new thermostat should be installed every time the coolant is changed.

Why does your car overheat at idle or in slow traffic BUT NOT WHEN IM DRIVING AT NORMAL SPEEDS?

Make sure the radiator fan is operating properly. You should also check your coolant your radiator might need flushed or it may need burped