Question about Chrysler PT Cruiser

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2005 pt cruiser occassionally overheats

We changed the fan, thermostat and radiator and sometimes the car just spikes in overheat mode. Weird thing sometimes turning on the air condition makes it drop down right away and it stays there, other times turning on the heat produces causes it to get back to normal temperature. What do you think is wrong with it? Relay issue maybe?

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  • 87 Answers

Check your fan relays and temp sending units...turning on the heat will help dissipate heat from coolant. turning on a/c will engage secondary cooling fan...check your relays and sending units

Posted on Feb 09, 2014

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Posted on Jan 02, 2017

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greg_margo
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SOURCE: overheat 2001 hyundai tiburon

Only 2 parts remaining are the thermostat and waterpump. Always start with the thermostat when diagnosing an overheating problem. If the car is overheating constantly under all conditions and coolant is backing up into the reservoir, it's very likely to be the thermostat. If it only overheats at low speed or idling, it's more likely the waterpump.

Posted on Aug 11, 2009

  • 23 Answers

SOURCE: car overheating had the thermostat changed

Yes I would check for a blow head gasket this can be an expensive repair so take to a shop to have checked

Posted on Feb 16, 2010

  • 56 Answers

SOURCE: I have a 98 acura tl with 230,000 miles, sometimes

It sounds like low coolant to me if it is not leaking out anywhere it is possible that you have a head gasket problem. I would suggest pressure testing the system to see if you have a leak or if it holds pressure. if you do this yourself be sure not to exceed 15 psi.

Posted on Nov 30, 2010

  • 747 Answers

SOURCE: 2002 PT Cruiser overheats ONLY when idling, not @ highway speed

sounds like an air pocket in your cooling system need to bleed system and add missing coolant

Posted on Jul 07, 2012

  • 5 Answers

SOURCE: 2001 pt cruiser ac causes car to overheat

Turn ur car on defrost and check to c if fan is running. It should kick on on defrost. If it does not try checking fan or relay or your fuse. If of does and still gets hot maybe a good coolant flush will work.

Posted on Jul 23, 2012

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Pt cruiser 2008 overheat i change the raditor and the fans , thermostat and still overheat lot of money and still


Has the system been flushed? Correct temperature thermostat installed? Are you getting flow through the radiator? Rad cap sealing properly and is it the correct one? Are the fans actually coming on? Is the temp sensor working properly? Rad properly filled or still have air trapped inside? Water level correct? Water pump working or seized, leaking?

Jan 01, 2015 | 2008 Chrysler Pt Cruiser

1 Answer

Radiator fan on my 2001 pt cruiser only engages when the air conditioner is on. When the heat is on the fan doesn't work causing the car to overheat. Do I need a new fan?


probably not . There are fuses to check and a relay to check as well as the coolant temperature sensor to check . If the engine overheats when you have the heater on it suggests an air lock in the cooling system . Have the system pressure bled along with all the other checks.

Feb 08, 2014 | 2001 Chrysler PT Cruiser

1 Answer

2002 PT Cruiser overheats ONLY when idling, not @ highway speed


sounds like an air pocket in your cooling system need to bleed system and add missing coolant

Jul 07, 2012 | 2002 Chrysler PT Cruiser

1 Answer

I change the thermostat but stil overheat what i need to do


If you checked the for fans working, the radiator, the fuses, and thermostat, I would say check the water pump.

Feb 15, 2011 | 2002 Chrysler PT Cruiser

2 Answers

My pt Cruiser is overheating how do I change the thermostat


follow the hose that comes from the top of the radiator to the motor, disconnect the hose and the housing,then the thermostat

Jul 22, 2010 | 2002 Chrysler PT Cruiser

1 Answer

Overheating 2005 PT Cruiser


This sounds like a faulty thermostat. The fact that running the heater helps with the overheating is a common symptom of a faulty thermostat. Just follow the top radiator hose to where it hooks on the engine. The thermostat is located inside the housing that the hose attaches to. A thermostat is relatively inexpensive and easy to replace. Just make sure that all old gasket material is removed from the housing before installing new gasket and thermostat. Also, don't overtighten the bolts, the housing can be easily compromised if the bolts are overtightened. Hope this helped and best wishes.

Aug 14, 2009 | 2005 Chrysler PT Cruiser

1 Answer

2003 pt cruiser overheating


It sounds like both problems are related. Possible that you have an intermitent problem with the cooling fan on the radiator? When it overheats are you in town at slow speeds or out on the road moving above 50?

Jun 15, 2009 | 2003 Chrysler PT Cruiser

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