20 Most Recent 2001 GMC Yukon XL - Page 2 Questions & Answers

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It's not the fuse. That fuse controls many different things. I would pull the A/C controller. Unplug it and plug it back in. If it comes on, It was corrosion at the plug. If not, I usually tear it down and fix the controller. Your best bet is to replace it, Unless you are into electronics and can solder very small components.

1. Oil Pressure Gauge Not Working You will notice this happens when your oil pressure gauge is not reading, whether the engine is turned off, idle or running. Try to step on the gas to rev up the engine. If the oil pressure gauge still doesn't change its reading, your gauge is busted. It's best to replace it as soon as possible because you won't have any idea if your car is already overheating or not. 2. Oil Pressure Gauge Reading Too Low When your engine is idle, the oil pressure gauge will have a low reading. When the engine starts running or when you're already cruising or on the freeway, your gauge's reading should have increased. If it stays on a low reading, then you now your oil pressure gauge is broken. 3. Oil Pressure Gauge Reading Too High Another common oil pressure gauge problem is when your oil pressure gauge is reading too high when your engine is idle or when it's turned off. Rep

There 2 wires connected to key ignition one must be loose

you have a bad brake light switch

What was the result? I have the exact same issue on my 05 Yukon xl, only 43,000 miles! :-( please help!

Is there someone trapped in your trunk? Could be your differential. Don't drive as it will really damage things. If you are lucky its just a bad bearing on the drive shaft , those X things Universal joint. . See u-tube on how to test a U joint. There are needle bearings on all 4 ends of U joint. So she said "whats a joint like you doing in a car like this??"

Not a fuse issue. Likely blend air door actuator failed or vacuum leak.

A high pitched whine like that indicates a bad bearing. Water pump, power steering pump, accessory belt slipping, alternator bearing, or in the worst case scenerio, Transmission pump.

clean your throttle at the butterfly with throttle cleaner may be dirty. or dirty fuel filter.

transmission has to be pulled to get at the seal, likely a 4 hour job or so plus the seal. Depends on labor rate. Could be extra charges if exhaust bolts are corroded (can't pull trans. with exhaust in)

never heard of that I thought a valet key only starts car and wont let you in glove box

start by checking bulbs are good one way is try hazard switch then turn signal handle try movin it around could have bad switch if you can get it to work repositioning it

It may be the front axel actuator moter(on front axel right side) is not disengaging the axel. There is a 4wd
fuse 15amp in the fuse block under the dash, make sure it's not blown. If the fuse is ok, check the connections at the actuator and the transfer case switch. These are the more common causes for the
problem you have. Give these tests a try and let me
know if you want to go to the next level.
Hope this helps. Good luck.

Do you mean the truck doesn't start or doesn't move? If no start does it crank or no crank if so check the starter maybe the wires are not conected if it doesn't move check the 4x4 if equipped make sure the transfer case isn't in neutral look at the switch on dash and select 2wd

Back up and check my answer!

New air filter and make sure you have air in the tires. Get rid of excessive heavy items too.

use a carpet blower and let it blow under the dash for a few days. this should have been the first thing done while doing the other repairs. it might need a ECM,BCM and some relays. The faster you can them dried out the better the chance of getting it running. hope the ditch didn't have salt water in it, if so chances are grimm of getting it running again without major electrical repair ! carpet blower Google Search these work great for getting stuff dry in a hurry.

Sounds like a broken Shift Cable or Linkage. Check the Transmission where the Shift lever is attached to the cable or linkage.