Greetings:
After owning Fords for over 20 years, I bought my first GMC last week -- a 2005 Yukon XL Denali.
Truck looks like it is in great shape and I took it on two extensive test drives before I bought it. Yesterday, however, I accidentally turned on the rear wiper and the arm stopped about halfway up the window. I figured it was a bad fuse so I pulled and inspected it only to find the fuse wasn't blown. I went ahead an pulled a 15 amp fuse from another location and stuck it in the rear wiper slot and nothing happened.
After putting the fuses back in their correct locations, I took the key out of the ignition and heard a constant, random clicking coming from under the dash on the passenger's side. I went ahead an locked the doors and walked back to my office. An hour or so later, when leaving work, I sat down in the driver's seat and noticed that all of the lights on the dash and the touch screen factory radio were randomly flashing, with clicking still coming from under dash. I started the truck and drove home without a problem.
When I turned it off in my driveway, everything was back to normal except the rear wiper, which was still stuck halfway up the window. Twenty or 30 minutes later, I drove it about 15 miles and sometime during the trip the wiper returned to its rest position. When I turned off truck at my destination, the lights/radio flashed and clicking under dash occurred again and were still doing it when I got back in the truck about a half hour later. I drove it two more times last night, and to work this morning and there was no flashing or clicking detected.
I also noticed that the rear wiper still doesn't work. But if I turn truck on, then wiper on and off, and then turn off truck, you can walk to the back and hear what seems to be the wiper motor clicking from with vehicle off and no key in the ignition.
I have seen some posts on this site and others describing similar electrical and rear wiper problems, but there was only one directly on point and it didn't seem to have an actual solution.
Can any of you point me in some directions to start troubleshooting these problems. Any help/advice you can offer is greatly appreciated. Thanks in advance.
Andy
After owning Fords for over 20 years, I bought my first GMC last week -- a 2005 Yukon XL Denali.
Truck looks like it is in great shape and I took it on two extensive test drives before I bought it. Yesterday, however, I accidentally turned on the rear wiper and the arm stopped about halfway up the window. I figured it was a bad fuse so I pulled and inspected it only to find the fuse wasn't blown. I went ahead an pulled a 15 amp fuse from another location and stuck it in the rear wiper slot and nothing happened.
After putting the fuses back in their correct locations, I took the key out of the ignition and heard a constant, random clicking coming from under the dash on the passenger's side. I went ahead an locked the doors and walked back to my office. An hour or so later, when leaving work, I sat down in the driver's seat and noticed that all of the lights on the dash and the touch screen factory radio were randomly flashing, with clicking still coming from under dash. I started the truck and drove home without a problem.
When I turned it off in my driveway, everything was back to normal except the rear wiper, which was still stuck halfway up the window. Twenty or 30 minutes later, I drove it about 15 miles and sometime during the trip the wiper returned to its rest position. When I turned off truck at my destination, the lights/radio flashed and clicking under dash occurred again and were still doing it when I got back in the truck about a half hour later. I drove it two more times last night, and to work this morning and there was no flashing or clicking detected.
I also noticed that the rear wiper still doesn't work. But if I turn truck on, then wiper on and off, and then turn off truck, you can walk to the back and hear what seems to be the wiper motor clicking from with vehicle off and no key in the ignition.
I have seen some posts on this site and others describing similar electrical and rear wiper problems, but there was only one directly on point and it didn't seem to have an actual solution.
Can any of you point me in some directions to start troubleshooting these problems. Any help/advice you can offer is greatly appreciated. Thanks in advance.
Andy
