Pontiac Problems? Ask a Mechanic for Answers ASAP
I am sorry your having this problem
the blower motor will NOT run on high speed at all ?
do you have a multi meter on hand ?
we would really need a multi meter to find out what is going on here
those 2 can be related by a low power issue to a few fuses or a common ground being bad would also cause the relationship between the 2 acting up
yes volts and ohm tester
we need to see with the car ON and the blower set to high speed if the orange wire at the resistor shows 12 volts
now unplug the resistor and with the car ON and blower set to high put the red meter lead to the orange wire terminal in the connector and the black lead to the black wire terminal in the connector NOT any of the 2 wires from the resistor to the blower motor itself but just on the connector that does NOT go to the blower motor what will it read for volts ?
it should be the fuse called HVAC/CONTR in the inside fuse box
so testing at the orange wire terminal and the black wire terminal 14 volts ?
does the other orange show 12 volts ?
if those powers check out can you return the resistor and try out a new one ? from the sounds of this that resistor is defective
Different expert here.
This is a very common issue on the 2001-2004 Grand Prix. The problem is a faulty ignition switch, which does send power to both the blower motor and the running lamps. I have replaced at least 30 over the last few years for this issue. Replace the ignition switch(not the ignition key cylinder) and it will resolve this issue
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