2 ELECTRIC COOLING FANS

1995 Buick Roadmaster

Tiny

walt sarkozy

July, 9, 2010 AT 10:46 PM

Electrical problem
1995 Buick Roadmaster V8 Two Wheel Drive Automatic 140000 miles

primary fan comes on with ac on. Secondary fan not coming on at all. Relays and fuses are good. Tempurture switch replaced. Could the ecm be bad? THANKS!

FOUND 1435 RELATED QUESTIONS

2 Answers

Tiny

bluelightnin6

July, 9, 2010 AT 10:52 PM

The fan's motor is more likely to be bad then the computer, test the motor by supplying 12v direct power to it.

Tiny

walt sarkozy

July, 10, 2010 AT 5:51 PM

Yes both motors work when connected to the 12 volts. Its strange that the the primary fan comes on only when the ac is on. The secondary fan is supposed to do that but the secondary fan is not coming on at all. Thanks!

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