2003 PT Cruiser Turbo with cooling fan running at high speed while car is on. It's a variable speed fan not low/high speed. Where's the temp sensor and voltage regulator controller?

5

Asked by Oct 02, 2016 at 08:34 AM about the 2003 Chrysler PT Cruiser

Question type: Maintenance & Repair

2003 PT Cruiser Turbo. The cooling fan stays running with the ignition switch on. The fan turns off when I turn off the car. There is no relay in the fuse box because it's for non-turbo controls. To eliminate the fan running, I installed a thermal couple in the radiator fins to sense coolant temperature which goes to a mechanical controller switch in line to the 12v power wire  (that is staying on) that powers the fan. This has been working OK, and sometimes have an overheating situation. I replaced the thermostat in the event it was not opening on occasion. I also bled the radiator to make sure there was no air in the radiator and still have an high temp issue. When I took it to the dealer for help, they had no documentation on the turbo fan controls and were not able to help me. Does anyone have any thoughts to help me fix the fan controls?

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