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  #1  
Old 11-09-2008, 02:40 PM
danadane21 danadane21 is offline
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1990 Bonneville Heat Problem

I have a 1990 Bonneville and no heat. The blower is new, I' ve changed the heat control panal but still no heat. Is there a heat control unit under the dash board? I even checked the fuses. Does this car have a relay switch for the heat? Please help! Winter is coming and I need some heat.

Cold in Chicago
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Old 11-09-2008, 07:13 PM
CoolasIce CoolasIce is offline
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Re: 1990 Bonneville Heat Problem

I would change the thermostat first.
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Old 11-09-2008, 09:00 PM
wafrederick wafrederick is offline
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Re: 1990 Bonneville Heat Problem

There is a resister under the hood,unbolt and remove it.After removing the resistor,go to your nearest self service car wash you can wash your car by yourself and clean the inside where the resistor goes which is full of dirt and crud.This is a common problem.
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Old 11-09-2008, 10:29 PM
danadane21 danadane21 is offline
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Re: 1990 Bonneville Heat Problem

Where is the resister located on the car?
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Old 11-10-2008, 04:45 PM
wafrederick wafrederick is offline
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Re: 1990 Bonneville Heat Problem

It is under the hood,left near the blower motor held in by two 9/32 or 5/16 headed screws.Look down there for dirt and crud after removing the resister.
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Old 11-10-2008, 06:39 PM
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HotZ28 HotZ28 is offline
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Re: 1990 Bonneville Heat Problem

I suppose we should first ask if you have good air flow from the vents.
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Old 11-13-2008, 06:22 AM
danadane21 danadane21 is offline
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Re: 1990 Bonneville Heat Problem

yes we have
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