GMC Yukon XL 2500 Questions

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It will go in gear but takes a lot of power to back up. It will not back up a hill. What do you all think is wring with it.
I have dried out fuse boxes, electrical plugs and checked the ECU. The water also filled the floorboards inside, just in the front. I purged the water from the cylinders and drained the oil. Vehicle will start but wil...
Switch has been replaced, transfer case motor has been replaced. When 4 wheel Auto selected, at slow speed (5-10mph) truck drives and makes noises like it was in 4 wheel drive. As I understand the "Auto" position, t...
I REPLACED THE AUTO RIDE ELECTRIC SHOCKS WITH REGULAR H.D. TRUCK SHOCKS.THANKS
The bulbs aren't blown. I checked the fuse in the fuse box under the hood.The problem occured when I hooked up the wiring in the trailer plug to operate the trailer back-up lights.The trailer lights work now but I LOS...
I replaced the axle shift motor,switch and shift motor. Where can I find a schematic ? Is there any relays, fuses etc. Shift motor is in neutral and won't engage any gears. Help!
My 2001 yukon danali xl is having brake troubles. When I actually push the brake its fine. When I hit the gas it sticks. A burning smell is coming out of the front passenget side tire. Whats really scary is when I par...
The dealer here in Mexico says I need to replace the module. I want to take the vehicle to the US to get it fixed. Is it safe to drive about 1000 miles to get it there? The vehicle is performing good with no proble...
i have 200,000 over on my yukon i bought it used and the owner said it might need a new cluster cause everything jumps up and down like somthing is lose i replaced cluster and checked for lose wires whats wrong with it
i replaced my fuel pump cause i thought that was the problem i can hear it much better now but not getting gas i took lose filter to check gas flow t=and there is none even when turning the switch
I have two key fobs that suddenly neither will work the remote lock/unlock feature. I havent noticed other things not working.
LOST POWER STEREING AND BRAKES AT THE SAME TIME ON 2003 GMC YUKON FLUIDS ARE FINE AND THE PROBLEM IS CONSTANT
My reduce engine power warning came on and the throttle was disabled. The engine was not overheating but I did replace the water pump and changed the oil. The warning light is still on and and throttle is still dise...
I know that I need to take this in to be repaired, but I need to know what it is that is causing the noise. When I am driving forward no real problems, but when I am using an on ramp I can really feel it and hear it. ...
I am replaceing the map sensor on my 2000 gmc yukon xl2500. But i need to know were to look. Thank you
back a/c is not working correctly blowing vent air while a/c is on
2005 used to haul 35oo lb trailer,2000 miles past 2 weeks. Toward end of trip harsh upshift despite mild acceleration, in nuetral no load, idle speed increased to 1100rpm without foot on throttle. After key shutdown...
My 2000 Yukon Xl 2500 brakes do not function properly. I've done everything like checked the brake pads and rotors, changed the brake line and changed the brake fluid and the brakes still do not work. Please help me?
Radio antenna broke off at base. I purchased a new base with cable and antenna and I'm looking for instructions on how to replace the cable.
wife was driving and said motor sped up. she parked it and it would not restart. I tried to start it and noticed the indicator showed 2nd gear as soon as the key was turned to the start position. please help
WHARE DO I FIND THE SRCONDARY AIR INTAKE CHECK VALVE, IF CLOUGED DO I CLEAN OR REPLACE?
My back door and glass will not lock with the remote or with the buttons to lock all doors. There is no key slot. What is likely the cause? How can I fix it?