Quote:
Originally Posted by A930Rocket
Edit 2: I realized today, my electric fan is not coming on.
New fan and radiator going in next weekend. Hopefully, that fixes everything.
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You can wire a manual direct feed to the rad fan for now.
Control side to a dash switch/relay/battery thick wired to motor. Fuses in both.
Use it liberally after warmup.
You will hear it and see it.
I dealt with the same problem before with an 89 Golf. Well built german engine with lucas electronics. Pressure built up until the heating evaporator radiator popped inside the cabin right side under dash. Had to bypass. Changed out three thermostats with different specs according to Chiltons/Haynes/Parts store. I never figured that one out.
Radiators can clog and fail, but change the sensor first.
And suspect the ECU, or whatever is in between, which the rad fan gets it's power from.
Turning on the A/C turns on that fan for more radiator airflow is what I read.
(This could be bad advice however.)