Question about 1998 GMC Jimmy
It is located right on the windshield washer reservoir. It looks like a short black cylinder.
Pop out little rubber plug where arm meets tailgate and unscrew the nut, pull off inside panel on tailgate, remove a few 10-13mm bolts around wiper motor, remove retaining clip, unscrew plastic retaining nut on outside, and swap out with new one. Best bet is to go to a junkyard - $40-$50 or $90-$150 brand new!!!
Posted on May 26, 2011
MARK THE POSITIONS OF THE WIPER ARM ON THE LIFT GATE GLASS,THEN REMOVE WIPER ARM COVER AND NUT AT THE OUT SIDE LIFT GATE, THEN THE BEZEL.BECAREFUL DONT DAMAGE PAINT.ON THE LIFT GATE.AND REMOVE THE UPPER AND LOWER LIFT GATE TRIM PANELS.DISCONNECT THE ELECTRICAL CONNECTOR AT THE REAR WIPER MOTOR, THEN REMOVE THE TWO MOUNTING BOLTS SUPPORT WIPER MOTOR WHILE REMOVING BOLTS.THEN INSTALL NEW WIPER MOTOR AND PUT EVERY THING BACK IN PLACE VISA VERSA.
Posted on May 26, 2011
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Posted on Jan 02, 2017
SOURCE: Rear Wiper Quit Working
It is the Motor. This is a VERY Common GM Problem that they have not Fixed since 1990. You will need to remove the Rear Door Panel to Access the Motor.
Posted on Jan 20, 2009
Unscrew inside panel on tailgate (3 screws-1 each side, 1 in the middle), Unclip and remove by pulling up and out towards the rear. Unscrew all screws holding steel plate down, Unclip plastic clips that hold the rod running behind the plate and unhook rod at top of that opens the window. Unclip wiring harnesses, remove wiper from the outside (1 nut holding it down)and unbolt the motor. It is pretty self explanatory once you have the steel plate removed, just remove and install the screws and clips in the same order and try it out before you put all your screws back into the steel plate since there are so many. Back window must be closed for wiper motor to work. To save yourself from replacing the motor with a new one, 9 out of 10 times it is simply the locking washer has come off of the gear inside the motor, if you pop off the plastic motor cover you will see the washer is off the gears are out of place. Just realigned the gear and replaced the washer with a "C" clip and you just hopefully saved your self some money. Good luck friend and hope this works. keep me posted, be glad to answer any question you may have.
Posted on Jul 03, 2009
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