Question about 1994 Mazda MPV

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Engine overheating Engine overheats when driving up hill or turning on AC

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I would check the thermostat

Posted on Jun 13, 2009

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3 Answers

Overheating! The van has new radiator, fluid, cap, heavy duty water pump, tsat, fan clutch. BTW the heads were redone not to long ago.


Did you change the thermostat? If not opening properly or far enough, that could be the cause of your overheating.

Use heater full blast with windows open to add additional cooling till you locate the source of the problem.

Sep 08, 2016 | AC Cars & Trucks

1 Answer

Temp gage is solid red, air conditioner is now blowing hot air. Filled coolant reservoir and it emptied while driving but mechanic found no leak with pressure test. Is this a thermostat issue?


I doubt it.
A faulty thermostat would cause the engine to overheat after a few miles of driving. A faulty cooling fan could cause the engine to overheat and also keep the ac from working.
A leaking head gasket could cause overheating, and loss of coolant, but would not affect the ac.

Mar 06, 2016 | 2011 Subaru Outback

1 Answer

Dashboard warning '; engine too hot stop car


The first thing I would do would be check the fluid level in the radiator. Sounds like the car is overheating under load due to lack of coolant. If the coolant level is ok then the radiator cap may be leaking pressure and causing the car to overheat.

Jan 08, 2014 | 2005 Citroen C3 Pluriel

1 Answer

Overheating


For car running hot and overheating issues, I suggest to you go through this help links.

Click this link below and go through the troubleshooting procedure to take care of the problems: ----



Car runs hot?

http://howtobyme.blogspot.com/2011/11/car-runs-hot-in-traffic.html
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All types of car overheating problems and troubleshooting?

http://technoanswers.blogspot.com/2011/11/all-types-of-car-overheating-problems.html
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Car freeze overnight and started overheating while driving?

http://technoanswers.blogspot.com/2012/01/car-freeze-overnight-and-started.html

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Engine Overheats and heater blowing cold?

http://howtobyme.blogspot.com/2011/11/engine-overheats-and-heater-blowing.html

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Car overheats and Air blows hot at idle?
http://howtobyme.blogspot.com/2011/11/car-overheats-and-air-blows-hot-at-idle.html
--------

overheating?

http://schematicsdiagram.blogspot.com/2011/12/buick-century-overheating.html
----------

Car engine Overheats and transmission starts slipping?

http://schematicsdiagram.blogspot.com/2011/12/car-engine-overheats-and-transmission.html
----------This details will help.Thanks.

Feb 12, 2012 | 1997 Dodge Intrepid

1 Answer

1989 Dodge Aries Overheating


How about a temperature sensor? If it's faulty it could be sending the wrong messages to your computer and your dash light.

Jan 27, 2010 | 1989 Dodge Aries

1 Answer

My Jimmy 1995 Overheat whith A/C On


Is it idicating an actual overheat or is it just running warmer than usual? Do you have a guage or a light? Most vehicles WILLrun hotter with the AC on because the AC condensor is directly infront of the radiator. Some have an auxiliary fan for this. If you do make sure it is running. Start and get the engine up to running temp. With the hood open peek in to see if you have one or two cooling fans. Watch with the AC on that Both are running in cycles.

Jul 24, 2009 | 1995 GMC Jimmy

2 Answers

Overheating


Having the radiator rodded is a good move. Retest. If it has an electric radiator fan check temp sensors. If the fan has a clutch it may need to be replaced if its slipping with the engine hot. Check bellts. Its likely a fan air flow issue if the engine overheats when the care is not moving or is moving slowly. If the engine overheats only with AC on that narrows it down. Write back if that's the case. Lots of things can cause this. Antifreeze and a good radiator cap discourages boiling. Pressure in the radiator raises the boiling point but it can't build up pressure if the cap is bad. Antifreeze also raises the boiling point. If actual boiling happens in the engine then steam builds up in critical places and drives the collant out of the block making the engine even hotter than it already is. Replace the cap. Check the antifreeze.

Jan 03, 2009 | 1991 Toyota Pickup

1 Answer

Overheating engine: termo guage at the middle during idle


The Temp gauge should read in the middle of the gauge at operating temperature. This is normal. The radiator fan should come on after idling (not driving) for 20 minutes. The fan should also come on when you turn on the AC. Are you experiencing overheat problems?
Please reply if you have overheating issues.

Oct 16, 2008 | 1994 Toyota Corolla

2 Answers

1986 Pontiac Trans Am Overheating


Its overheating when you go up long hills because the engine is not getting adaquete air in the system. The radiator is angled to get optimal air a certain way. It may overheat but you shouldn't start seeing smoke.

Oct 09, 2008 | 1986 Pontiac Firebird

1 Answer

Overheating


the AC puts an extra load on the cooling system in your car. a short descriptive reason is that the AC condensor is in front of the radiator therefore the heat it emits is dumped into the radiator cooling fins. so when your car overheats when the AC is on and dont overheat when its off its an early warning sign that something in your engine cooling system is going bad. such as thermastat or waterpump. or it could mean your radiator need flushing from the inside and the fins could be clogged with dirt and bugs that get past the grille. try cleaning the cooling system fins first the ac condensor and radiator see if water will sprat through the grill into the fan with your water hose. then if cleaning check all the other items i mentioned good luck james

Jul 06, 2008 | 2000 Cadillac DeVille

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