Question about 1987 Pontiac Grand Am

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Motor heats up when i install a thermostat.Can take thermastat out and car doesnt heat up

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The most common cause of this is a leaking head gasket.

Posted on Oct 07, 2009

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Posted on Jan 02, 2017

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1 Answer

Which hose goes where on my 2000 pontiac sunfire heater core...


are you installing the correct thermostat the right in the head or block
3 thermostats indicate incorrect fitment method
heater hoses run either way as the water is pushed through the heater core by the pump

Apr 21, 2017 | Cars & Trucks

3 Answers

Problem..went to reinstall thermastat..was no thermastat in car. the housing was cracked, broken and is leaking antifreeze..why did the air work if no thermastat was in it???


Thermostat holds water in motor until it heats up to thermostats temp. While thermostat is closed (holding water back) it allows water in radiator to cool. When thermostat opens cool water enters engine through lower hose, hot water into radiator. When cool water hits thermostat it closes again and repeats the cycle. Your A/C is not dependant on heated water as when air is on, heater valve in heater hose is closed. Get yourself a new housing, gasket & thermostat and fix it right. An added bonus is you'll probably get better gas mileage with correct thermostat.

Jan 02, 2011 | Pontiac Grand Am Cars & Trucks

2 Answers

My heater on my 2005 uk spec sportage does not seem to put out much heat at all on climate control or manual modes, what can be wrong?


Hello Stan. Change the thermostat under the hood. This is an easy and inexpensive fix and it almost always is the fix to the symptoms you are describing.

If you will be changing the thermostat yourself, here is a link to the step-step instructions http://www.ehow.com/how_7373140_replace-thermostat-2001-kia-sportage.html

Joe

Thanks for choosing FIxya!

Dec 04, 2010 | 2005 Kia Sportage

1 Answer

My villager is not putting out heat and it is over


change radiator cap.and then if doesnt fix change thermostat

May 13, 2010 | 1999 Mercury Villager

1 Answer

My scerity sys went off and I my car over heats I think it needs a new thermastat


maybe your security system monitors engine temp ... it doesnt have to be the thermastat thats bad .. it could be the radiator fan switch or relay bad .. you can tell which by the following.
1. if it overheats only when idling or in heavy traffic but does not overheat while on the road (moving) then your problem is more likely the radiator fan switch, relay or fan motor ..
2. if your car overheats all the time even while driving then it could be the thermostat ..

check belts, coolent level and radiator clogging ..

Feb 19, 2010 | 2001 Pontiac Aztek

1 Answer

Has no heat, both heater hose's stay cool also atsame time lower radiator hose also stays cool just replaced thermastat


Check to see if you may have installed thermostat upside down. If thermostat is in correctly, check to see that water pump is moving coolant.

Jan 04, 2010 | 2002 Mitsubishi Galant

1 Answer

The heat doesnt work in my 1997 lumnia


I think you're right. If you have a water temp gauge and it reads normal temp but you still have no heat at idle then you have another problem. If you just have a temp light then I'd replace the thermostat, it's easily done. Just go to your auto parts store and buy the Hayes manual for your car.

Jan 02, 2009 | 1997 Chevrolet Lumina

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