Having problems with your 1979 Pontiac Firebird ?

Blower blows high flow only

\015 87 Olds Calais, blower will function on high only. I changer the control panel, blower resistor and fan motor. I suspect there must be a wireing problem possibly a grond wire\015 Posted / edited by AnonymousUser on : 30-11-2020

Answers :

One item you missed... the fan relay!!!
What about the control switch, did you change it????? usually the switch will only run on one speed. mesna the switch is bad. You could pull the switch off, and get a jumper wire and cross the other speeds out to see if they will work.
Repair Help & Product Troubleshooting for 1979 Pontiac Firebird

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