fan runs all the time and kills battery
5

Asked by Lou Aug 30, 2019 at 09:56 AM about the 1993 Cadillac Allante FWD

Question type: Maintenance & Repair

I can not shut off the fan. Even with the car off, fan runs til battery dies. I pulled
the connection near the firewall and it stopped....How to repair ?  thanks in
advance

1 Answer
355

Beau answered 5 years ago

You most likely have a faulty coolant temp sensor or fan control module. There are certain ways to test. Best to get an OBD-2 scanner and see if it can pin-point what part is bad first. See what stored codes it has.

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