• The site migration is complete! Hopefully everything transferred properly from the multiple decades old software we were using before. If you notice any issues please let me know, thanks! Also, I'm still working on things like chatbox, etc so hopefully those will be working in the next week or two.

1999 blower problem +++

H

H2o53

New member
The AC, heater blower works only on high somtimes. When it's in this mode the rear window defroster, auto headlight control, & eng cooling fans will not operate properly, very slow. The head lights work manually. I have replaced the resistor, & blower motor. I even swaped out the fan control switch from a running Pontiac.
Is it a relay, power control, wiring or somthing more ?
 


Re: 1999 GT blower problem +++

H2o53 said:
The AC, heater blower works only on high somtimes. When it's in this mode [not working] the rear window defroster, daytime auto headlight control, & eng cooling fans will not operate properly, very slow. The head lights work manually. I have replaced the resistor, & blower motor. I even swaped out the fan control switch from a running Pontiac.
Is it a relay, power control, wiring or somthing more ?
Click to expand...

Well I did a shade tree repair, that took all of 15 min. If you have had the problems that I had, here is how the fix is done. Make a jumper wire with a 10 amp fuse from the Power Window circuit breaker to the incoming hot side of HVAC CNTRL fuse, [use a 12 volt test light to find it] this will stop the power drop that kicks out one of the power control modules. Now all is working like new, Rear Window Defroster, Eng Cooling Fans, [no more 210 deg engine temps ] Heater Blower all the speeds, AC, & Daytime Runnig Lights !!!!!!!! :th_thumbsup-wink:
This my not be Mr Goodwrench approved but it works, and it cost alot less.
 
You must log in or register to reply here.
Back
Top