2001 GMC Denali - Answered Questions & Fixed issues


There is a headlamp relay in the under hood fuse / relay box . HDLP relay ! It should be marked on the under side of the fuse box lid.

2001 GMC Denali | Answered on Mar 06, 2017 | 123 views


O(n this website (link below) you find fuse box diagram and description for Saturn Sky (2006 - 2009)

Saturn Sky 2006 2009 fuse box diagram Auto Genius

2001 GMC Denali | Answered on Feb 18, 2017 | 156 views


Yup - you may need to get the grilles and such as well...

2001 GMC Denali | Answered on Aug 24, 2014 | 630 views


If its an automatic your tranny is probably fried.smell your fluid and wipe it on a clean paper towel if it shows black it probably got to hot or just wore out.

2001 GMC Denali | Answered on Mar 19, 2014 | 20 views


have you checked the fuel pump solenoid and fuses, plus the connections?

2001 GMC Denali | Answered on Feb 09, 2013 | 47 views


It sounds like a vacuum hose popped off somewhere.

2001 GMC Denali | Answered on Jan 17, 2013 | 111 views


when gm transmissions start to fail generally the reverse gear is the first to display problems.........you will probably need to have it rebuilt or replaced.......sorry :(
hope this helps.....good luck!

2001 GMC Denali | Answered on Oct 17, 2012 | 230 views


Check wheels and steering for loose parts, wheel, hub/bearing, check to make sure all nuts and bolts are tight, Check Inner and outer CV joints for damaged boots and make sure the hub nut is tight. Grease the components that have grease fittings, tie rod ends and ball joints usually. Check the brake calipers for tight mountings, the upper ball joints should be inspected for wear, as should any steering linkage component. Also check suspension arms for worn or degraded bushings, upper and lower, and that their mounting bolts are tight to frame.

Also look for plastic parts that are loose- it they can move close to a tire, they may be a possible source of the noise as well. Including a dust shield rubbing against the steering shaft- llok for bright areas where something may be rubbing against it.

2001 GMC Denali | Answered on Feb 12, 2012 | 125 views


When you cycle the key on and off, can you hear the fuel pump running?

2001 GMC Denali | Answered on Oct 02, 2011 | 120 views


it is located along the frame rail under the truck on the driver side, should be near the back of the cab. look for the pump with the metal hard lines leading from it.

2001 GMC Denali | Answered on Mar 31, 2011 | 68 views


Either the shifting cable is out of adjustment, you can test this by disconnecting the cable at the transmission and seeing if it's fully in park. Or the parking pawl inside the transmission is broken.

2001 GMC Denali | Answered on Feb 21, 2011 | 346 views


remove the fuel pump relay for instance

2001 GMC Denali | Answered on Jan 15, 2011 | 137 views


Try to hold the door handle in the open position while you pull on the door latch, the medal piece, should open so that the door will shut close.

2001 GMC Denali | Answered on Nov 05, 2013 | 95 views


Take your vehilce to a new mechanic which specializes in vehicle alignment. Make sure they check your braking system for bad brake pads or faulty brake spring systems. Also check for alignment tie-rods out of alignment. This could cause a clunking sound when going over hills on a turn, or bumps in a turn.

2001 GMC Denali | Answered on Nov 15, 2010 | 264 views


Bird or dirt dobbers may have nested there while the car was setting for that perod of time. Check the suspension on that side for anything that may be causing resistance.

2001 GMC Denali | Answered on Nov 04, 2010 | 42 views


if you mean rears then use a G clamp to apply light pressure and turn piston clockwise or go to auto factor and buy the right tool ,not expensive

2001 GMC Denali | Answered on Oct 14, 2010 | 31 views


sound like sunshell in trans failed

2001 GMC Denali | Answered on Sep 10, 2010 | 81 views


Code is specific to your vehicle .. Dealers are not supposed to charge for unlocking and they should have given you the code to write down in your owners manual.

2001 GMC Denali | Answered on Jul 28, 2010 | 336 views


Maybe? the older trucks you just pull on it and it should come out. But the cruise wires will need to be connected.

2001 GMC Denali | Answered on Mar 13, 2010 | 126 views

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