Mechanics

HEATER BLOWER MOTOR REPLACEMENT

1998 Pontiac Grand Prix

Heater problem
1998 Pontiac Grand Prix 6 cyl Two Wheel Drive Automatic 110, 00 miles

NEED TO KNOW BEST PROCEDURES TO REPLACE THE BLOWER MOTOR IN THIS CAR
THERE MAY BE ANOTHER RELATED PROBLEM
THE LOWER SPEEDS HAS NOT WORKED FOR A WHILE
Avatar
R DOWNEY
November 22, 2008.



Hello –

I have attached the info you requested…you didn’t specify which engine size so I went with a 3.8L VIN K….(the VIN is the 8th digit of your VIN number)

I gave you the procedure on blower motor replacement. You most likely cause for the fan speed is the blower resistor is bad. I have also provided that for you.

Thanks for the donation

Please let us know if what the final fix was for your car so we can better assist others. Thanks!

Find a car repair manual for your car repair questions.


http://www.2carpros.com/forum/automotive_pictures/248015_Picture1_12.jpg



Blower Motor Notes

Remove or Disconnect

Battery ground negative cable.
Right side instrument panel insulator.
Blower motor cooling hose.
Blower motor electrical connectors.
Blower motor mounting screws.
Blower motor.

Install or Connect

Blower motor and mounting screws. Tighten
Screws to 20 N.m (14 lb. ft.) .
Electrical connectors.
Blower motor cooling hose.
Right side instrument panel insulator.
Battery ground negative cable.

Blower Resister

Remove or Disconnect

Right side instrument panel insulator.
Electrical connectors from blower motor resistor.
Loosen (do not remove) both forward mounting screws.
Blower motor resistor opening is slotted as access is extremely limited.
Rearward mounting screw.
Blower motor resistor. Important
Care must be taken when removing the blower motor resistor. The resistor is a ceramic card for (C60).

Install or Connect

Blower motor resistor.
Rearward mounting screw. Tighten
Screw to 1.5 N.m (13 lb. in.) .
Tighten both forward mounting screws. Tighten
Screws to 1.5 N.m (13 lb. in.) .
Electrical connectors to blower motor resistor.
Right side instrument panel insulator.

ImpalaSS
Nov 22, 2008.