I'm hoping for some help...we have a 1999 GMC conversion van. It is hotter than a firecracker today and the A/C has quit. I have an appt at the shop for the AC on Tuesday but what I am hoping someone can help me with is I can't get the power window on the passenger side to go down. Is this a serious problem I shouldn't attempt to fix myself? Thanks in advance.
if it goes beyond you opening the door panel and checking for up/down voltage, I would seek professional assistance. Window linkage and regulators are usually a specialized art. The a/c repairman may/may not be able to aid your window dilemna.
Will it go up? Yea, I know it's already up but if you push the up button you can usually see a bit of movement (or hear a little sound if you put your ear to the door) as the motor strains to push it higher.
The reason I ask this is the most (if not all) window motors reverse direction by changing the polarity of the DC voltage applied to the motor. If the motor will run in one direction but not the other the problem is (almost) always in one of the switches, if the motor won't run in either direction the problem could be the motor itself, a switch or something else.
Of course, there could be a broken wire but a switch or motor are more likely. Most vehicles only have one fuse for all windows, so if other windows work, it is probably not a fuse but check your owners manual just to be sure that there is only one fuse.
If it will suddenly not go up or down (either) but will another time, and in view of the age of the vehicle, it may be it is time for you to replace the motor. They become weak with age, especially when used quite frequently. It is just a wear thing. J.C. Whitney can lead you to the right replacement. The door panel comes off with screws (likely hidden blehind upholsterd dots that snap off and on). I replaced both of mine at around 105,000 miles for steadily decreasing reliability. Cost is about $75-$90 each, depending on features. They just screw in. Adjustment is necessary. Having a Chilton's manual for your model will help explain it all.
VernM
GMC Conversion van/Wells Cargo MiniWagon trailer
Sent via HughesNet/SatMex5 Internet Portal
Always check the fuses before you start tearing into stuff.... usually pretty easy to find, especially if you have the owner's manual. While not 100%, usually just holding them up to the light and looking to see if the filament is complete from side to side is a pretty good check. A continuity test with a meter is slightly better, but not by much. Resist temptation... replace a blown fuse only with one of the same size / amperage, unless you have proof in the manual that someone had put a too-small one in before. Sometimes a blown fuse is a genuine response to a problem, but sometimes they just die for unknown causes.
When you say the A/C has quit, we need more details... quit blowing cold air, or quit blowing altogether? Suddenly, or gradually?
Jim, "The Navy... It's not just an adventure, it's a freakin' job!"
'06 Tiger CX 'C Minus' on a Silverado 2500HD 4x4, 8.1 & Allison ('Loafer's Glory'); '07 Forester 2.5 ( the 'HANDBSKT'); '95 Toyota SR5 V-6 4x4 pickup, ARB locker, Bilsteins, Warn hubs & M8000, etc;
'94 968, M030 swaybars ('DOPPLER')
My 2000 GMC savana van also has had issues with both the passenger and driver side windows. The passenger side seems to quit more often, not alot, but anoying. They will completely stop working up or down in any position. Of course this started happening after I had the panels off to insulate the doors. Banging the console seems to help. Haven't gotten stuck in the rain or winter yet but that will sure force me to see how well the insulation is holding up!
Offline
.jpg)
