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2006 overheating

 
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Old 22 May 2016, 12:03 pm
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Default 2006 overheating

I have a 2006 PT cruiser that is overheating. In the morning when I first started it, the temp needle would spike after a few miles of highway driving and then go to 1/2 way mark. When I would drive home from work though, the temp would go up when I cam off the highway and stay up when driving in city traffic. I changed the thermostat and bled it. I drove in on the highway and in city for about an hour and temp needle never went above halfway. The next day I drove about 5 miles, temp went to 1/2 way and stayed. Went in the store for about an hour and when driving home, temp went to hot and stayed again. I pulled over for a few minutes and then re-started and temp was at 1/2 way mark for the rest of the drive home. Fan is coming on when the temp is above the 1/2 way mark.
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Old 22 May 2016, 12:23 pm
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Default Re: 2006 overheating

..... Members posting below has some good suggestions.
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Last edited by ptcruisersteve; 23 May 2016 at 11:54 am.
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Old 22 May 2016, 01:07 pm
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Default Re: 2006 overheating

Sound like your radiator/AC fan is not work on both speeds and your low on coolant.
Low speed is fan runs when needed up to 35 mph for radiator cooling. If your around 100,000 miles or a bit less, it is suspect.
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Old 22 May 2016, 06:10 pm
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Smile Re: 2006 overheating

Fan Relays are also a common suspect as is corroded connectors and dodgy temperature sensors. It does sound though like you may be either low on coolant, or it ain't getting to where it needs to be, when it needs to be there, so check your coolant levels and perhaps replace your thermostat
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Old 23 May 2016, 09:26 am
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Default Re: 2006 overheating

You may still have air in the system. Put the car on ramps or a hill where the car tilts up at the engine.

Put heater on full, and remove the radiator cap. Then run car until the thermostat opens upper rad hose should be hot. I press the upper hose a few times as well.

Top off and try again.

All this assuming fan and thermostat working. If still bad get a pro to check it out for you. Cheaper than a new engine!

Mike
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