The main fan will not shut off when the car is running.
Apr 22, 2020 at 3:13 PM
Main fan will not turn off
2004 VOLVO XC70
JONATHAN JENSEN
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I suspect you have a cooling temperature sensor issue. However, we need to start with checking for codes. I also attached a testing for the fan. First set is get codes so let's start there. Here is a guide that walks through that. If you don't have a scan tool then stop by a parts store and they can check for codes.
https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing
If there are no codes then I suspect we have a wiring issue causing the fan to stay on high. However, this sounds more like a command issue because the ECM thinks the temp is higher then it is actually is.
https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing
If there are no codes then I suspect we have a wiring issue causing the fan to stay on high. However, this sounds more like a command issue because the ECM thinks the temp is higher then it is actually is.
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Apr 22, 2020 at 6:40 PM
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