1991 Pontiac Firebird Cooling system

KUPHOLDER

MEMBER
1991 PONTIAC FIREBIRD
V8
2WD
AUTOMATIC
167,000 MILES

The fuseable link for the coolant fan blew out. I replaced it but my fan no longer turns on. I thought it may be the thermostat so I replaced that aswell. Let the car warm up hoping the fan would kick on and instead the fusable link that I had just replaced turned red hot, melted, and caught fire. Wondering if this could be caused by the fan motor and if I replace the fan and fan motor would this solve my problem?

5 Replies

BLACKOP555

MECHANIC
10,371 POSTS

Sounds like the fan has alot of resistance due to a short, which caused the link to blow the first time and catch fire the next time.

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Thursday, May 1st, 2008 AT 6:56 PM

KUPHOLDER

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3 POSTS

Would changing the fan and fan motor solve this problem? Or would I need to replace those and the wireing?

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Friday, May 2nd, 2008 AT 11:55 AM

BLACKOP555

MECHANIC
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Change the cooling fan motor should fix it, but it is possible the harness is grounding out also, check the motor and the harness.

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Friday, May 2nd, 2008 AT 3:37 PM

KUPHOLDER

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3 POSTS

Where is the wireing harness located? Is it fairly easy to locate? Or will it require alot of searching?

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Sunday, May 4th, 2008 AT 12:48 PM

BLACKOP555

MECHANIC
10,371 POSTS

Wiring harness is the wires that go from an accessory to themain harness.

Just check the wires from the fusible link to the fan, aka the fan wiring harness.