1999 Pontiac Bonneville fan switch--- nothing works

Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's, Olds 98 91-96, Buick Lesabres and Park Avenue 91-96. Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.
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wpbrink
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1999 Pontiac Bonneville fan switch--- nothing works

Post by wpbrink »

Went to turn on the heat in the car last night and none of the fan selections is working at all. I'm not good at testing components and I have no idea what the problem would be. Is it the switch itself?
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widtrak77
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1999 Bonneville SSEi

Re: 1999 Pontiac Bonneville fan switch--- nothing works

Post by widtrak77 »

does your car have auto climate control or manual?
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harofreak00
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Re: 1999 Pontiac Bonneville fan switch--- nothing works

Post by harofreak00 »

Blower motor resistor or the blower motor itself more likely. If you're not good at testing, just simply replace both of them. Replacements are cheap.
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wpbrink
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Re: 1999 Pontiac Bonneville fan switch--- nothing works

Post by wpbrink »

It has manual
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Sirius
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Re: 1999 Pontiac Bonneville fan switch--- nothing works

Post by Sirius »

I think Andrew's advice still applies - blower motor brushes and commutators wear out. If you're sporting the original blower motor in your '98, it's probably due.
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