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Old 09 Sep 2013, 09:56 pm
Young Cruiser
 
Join Date: Aug 2012
Posts: 50
Default overheating

2005 PT Cruiser Convertible with standard touring and standard turbo

normal operating temp is 50% on temp gauge

it stays here all day long in 95 degree heat in city driving

when I get on interstate, temp climbs from 50% to 75% on gauge. I turn on heater and temp drops back to 50%. It does this only 2-3 times per week.

What could issue be? The fan seems to be fine as both high and low speeds come on.
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Old 10 Sep 2013, 03:37 am
Senior Cruiser
 
Join Date: Jan 2013
Posts: 1,266
Default Re: overheating

Sounds like the radiator is getting tired. I'm assuming the air is out of the system and the coolant recovery tank/radiator cap is working. A flush might help.
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Old 10 Sep 2013, 06:22 pm
Fresh Cruiser
 
Join Date: Aug 2013
Location: ORLANDO
Posts: 5
Default Re: overheating

Okay, I have the same year and type of PT cruiser. However, I have just recently had to replace the radiator and put in a new fan assembly, but car keeps overheating. The fan keeps blowing both fuses (50A and 40A). Does anyone know what problem could be. We have also changed the thermostat and replaced the radiator cap.

Thanks!
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Old 10 Sep 2013, 09:32 pm
Regular Cruiser
 
Join Date: Feb 2013
Location: Texas
Posts: 150
Default Re: overheating

Quote:
Originally Posted by bheffner View Post
2005 PT Cruiser Convertible with standard touring and standard turbo

normal operating temp is 50% on temp gauge

it stays here all day long in 95 degree heat in city driving

when I get on interstate, temp climbs from 50% to 75% on gauge. I turn on heater and temp drops back to 50%. It does this only 2-3 times per week.

What could issue be? The fan seems to be fine as both high and low speeds come on.
First, check to make sure the radiator and reservoir are full. If so, then I would replace the thermostat.
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2008 PT Cruiser Touring 135,000 miles
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