Take the 2-minute tour ×
Motor Vehicle Maintenance & Repair Stack Exchange is a question and answer site for mechanics and DIY enthusiast owners of cars, trucks, and motorcycles. It's 100% free, no registration required.

I have a 1998 Buick Park Avenue (standard not ultra). Recently the heating and air stopped blowing. It acts normal in every other way (lights and indicators work as normal) but I am not getting any blowing at all no matter the setting.

I have been assuming that the issue is blower motor (which is remarkaly easy to replace at least in my buick).

Am I correct to assume that is the problem? Once I remove the blower motor is there an easy way to test it to verify that it is bad?

Thanks.

Seth

share|improve this question
add comment

2 Answers

I assume you've checked/changed the fuse first?

If the blower motor is easy to get at, I would go and pulling the connector off and check that you're actually getting power to the motor and only then pull the motor if you've confirmed that you do. It wouldn't be the first time that it's actually the fan switch or something upstream from the blower motor that's gone wrong.

share|improve this answer
    
Tim, thanks for your answers. Total newbie here...so to check that I remove the wires and then use a multimeter...set it to DC 10 and touch the two leads to the wire connectors...is that basically it? –  Seth Spearman Sep 19 '11 at 13:12
    
You want to set it to something that covers at least 15V DC, but yes, that's the principle. One of the connectors is likely to be the ground connector so you might have to identify that first by cross-checking the various connectors (if you have more than two) and then measure the other connectors against ground while you move/turn the fan switchs. –  Timo Geusch Sep 19 '11 at 14:38
    
Check the resistor pack. Normally if that's gone, the blower still works, just only on high. However, if the resistor pack overheats and the wiring melts (seen it happen)... –  Mark Johnson Apr 2 '12 at 1:00
add comment

It's fairly common for the fan switch to go bad. You might be able to connect 12v directly to the fan motor and see if it runs, if there are only two wires going to the fan. But there are more than two wires and you hook 12v to the wrong ones, you could do some damage to an otherwise good fan.

share|improve this answer
add comment

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.