1994 GMC Yukon Wiper motor and switch

1994 GMC YUKON

HAPPIEBOYY

MEMBER
2 POSTS
FOLLOW

Electrical problem
1994 GMC Yukon V8 Four Wheel Drive Automatic

Well, my wipers stopped working... Checked the fuse and its good , even replaced it. Replaced the wiper motor, twice! I even replaced the wiper switch. Still nothing..no noise coming from the motor. The wiper fluid motor works and even the blinkers too! Im stumped! I did find out one thing, when i turn my ignition switch back the motor makes sum weird noise like its stuck..no noise on the on position! Can you please help![img:4f011d954e]http://www.2carpros.com/forum/automotive_pictures/553836_tn_1.jpg[/img:4f011d954e] the pic is of a part that goes on the switch..just cant remember were it goes?

Jul 24, 2010 at 1:07 AM

RASMATAZ

CERTIFIED EXPERT
75,992 POSTS

Hi happieboyy, Welcome to 2carpros and TY for the donation Sounds like the wiper motor control module is defective. Been trying to locate that part on the pic but I cannot come up with it on Mit1 and Alldata Auto references its not showing,-sorry Circuit Operation The pulse-type Wiper/Washer System includes an operating mode in which the Wipers make single strokes with an adjustable time interval between strokes. The time interval is controlled by a Solid-State Pulse/Speed/Wash Control in the Wiper Motor Module. The duration of the relay interval is determined by the Pulse Delay Resistance in the Wiper/Washer Switch.

Jul 24, 2010 at 7:11 AM

HAPPIEBOYY

MEMBER
2 POSTS

i already replaced the whole wiper motor twice...new module on both motor assemblies.. are the ones on the new motors defective???? i could understand if it was the original motor but a new one?? im confused..

Jul 24, 2010 at 10:22 AM

RASMATAZ

CERTIFIED EXPERT
75,992 POSTS

Recheck wiper fuse 35amp again, and check for power when you engage the wiper on the wiper motor pink wire and also test the ground circuit-See below

Jul 24, 2010 at 3:38 PM