Blower motor

[wooooof]

My heat/ac blower only works on high speed. any suggestions?

 

[phil_jordan]

Try this
http://ihadav8.com/forum/VortexBuicks/acvacuumswitch.htm

 

[phil_jordan]

This was the first thing that came to mind when I read your issue. HTH!!

 

[GNVenom]

Do you have the digital climate control option?
Or is it the manual heat temp controls?

 

[wooooof]

It is manual


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[RmvBfrFlght]

My heat/ac blower only works on high speed. any suggestions?

Most likely the resistor unit is bad. It is located on the top of the HVAC box under the hood. The resistor controls the various blower motor speeds.

RemoveBeforeFlight

 

[wooooof]

I have already replaced the resistor. That's not it

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