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06 Cruiser overheating

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Old 21 Feb 2013, 03:38 pm
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Join Date: Feb 2013
Posts: 3
Default 06 Cruiser overheating

My 06 PT cruiser is overheating. I changed out the radiator cap & thermostat & the coolant level was fine, no loss of coolant. This took me an hour and a half so the engine had cooled significantly, then when I started the car the Temperature gauge was immediately all the way up to HOT & the car had not even run for 1 minute. I took off the radiator cap & looked to see if the coolant was circulating in case the water pump may have failed, but it seems to be circulating the coolant. My only other guess is the temperature sensor may be bad. When a mechanic changed my timing belt he had forgotten to plug in the temperature sensor wire, so the car always showed the temp as flat "Cold" once I plugged it in it showed it as right in the middle where it usually is. Could this wire have shorted out & caused the engine to "think" it was over heating?
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Old 21 Feb 2013, 03:43 pm
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Join Date: Sep 2001
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Default Re: 06 Cruiser overheating

The biggest cause of overheating for the PT is a failed radiator fan followed closely by a clogged radiator (usually on the older models). The first thing for you to do is check to see if both speeds of your fan are running. If you don't do your own work, ask someone with a scanner to run the fan through the two cycles to make sure it's good.
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