1990 80 4-cyl temp rises at idle no fan, turn off car fans yes
08-26-2005, 05:17 PM
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1990 80 4-cyl temp rises at idle no fan, turn off car fans yes
1990 80 4 fwd. My enginge temp is rising past the half-way mark, however my cooling fans are coming on only after I turn the car off. What gives?
08-26-2005, 10:42 PM
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Well, you probably have a bad temp sensor that
turns the fan on when your car is running. Not totally sure about the 4 cyl, but the temp sensor/switch for 5 cyl is in the bottom of the radiator.
These cars have an after-run thermoswitch that blows the fan(s) a while when you shut down, in case it is too hot under the hood. On the 5 cyl, that sensor is at the back of the valve cover, more or less.
So, it sounds like your fans work fine, but you have a bad sensor, or wiring or whatever.
These cars have an after-run thermoswitch that blows the fan(s) a while when you shut down, in case it is too hot under the hood. On the 5 cyl, that sensor is at the back of the valve cover, more or less.
So, it sounds like your fans work fine, but you have a bad sensor, or wiring or whatever.
08-28-2005, 05:34 PM
#3
The sensor at the front of the head is tirggering the fan after shut-off.
The sensor in the radiator (which controls the fan when the car is running) probably needs to be replaced.
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