blower motorproblems

i have a 97 grandprix where the blower motor only runs on 5, replaced the resistor, wiring harness and motor. and same results..... anyone else had this problem?

Sounds like the blower switch in the control head..... can confirm with test light.....disconnect the harness to the resistor block.....key on, engine off.....turn the blower switch to position #1......one of the circuits in the harness should be hot.....change position to #2....another circuit should be hot and so on.......if no power in any circuit in the first four speeds, double check the low speed fuse.....if ok, than check for power into the head...if ok, then it's the switch in the head....don't know if just the switch can be replaced or if the whole head has to be replaced....

Are you having any other electrical gremlins such as the key not coming out, instrument cluster lights dropping, shifter not going into/coming out of park, etc...? If so, you may have a failing ignition switch, a common issue on these cars.

ya, rear defog doesnt work, check tire pressure light stays on. little things like that. gonna change the ignition this weekend. thanks

Sounds like the blower switch in the control head..... can confirm with test light.....disconnect the harness to the resistor block.....key on, engine off.....turn the blower switch to position #1......one of the circuits in the harness should be hot.....change position to #2....another circuit should be hot and so on.......if no power in any circuit in the first four speeds, double check the low speed fuse.....if ok, than check for power into the head...if ok, then it's the switch in the head....don't know if just the switch can be replaced or if the whole head has to be replaced....
ya checked it all, power on all settings. gonna change the ignition switch. hopefully that does it.

"ya checked it all, power on all settings. gonna change the ignition switch. hopefully that does it. "

Wait a minute, you had power on all 5 positions at the harness?

"ya checked it all, power on all settings. gonna change the ignition switch. hopefully that does it. "

Wait a minute, you had power on all 5 positions at the harness?
yes i did

Sounds like you're onto something with the ignition switch.

Sounds like you're onto something with the ignition switch.
i think so to, i priced one out for 265 bucks... yikes! might have to stick with only speed 5 through the winter

Just did a quick search on Rockauto.com anywhere from $70 to $110

Guys, re-read.....he says he has power at all 5 position at the harness to the resistor block.....

Just did a quick search on Rockauto.com anywhere from $70 to $110
yes i see... thanks alot! but how am i supposed to know what one fits the car... there are like 6 different ones?