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2001 GMC Yukon XL - Page 2 Questions & Answers
Where is main accessory fuse
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.
Has 358000 miles, just had leaks repaired. Twice since my oil pressure gauge reads no pressure but not all the time? Why
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
What causing the very hard loud banging noise in the rear end or in the driveline
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??"
High Pitched Whine
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.
My 2001 GMC Yukon seems to be stuck in 4 wheel
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.
Burn lots of gas
New air filter and make sure you have air in the tires. Get rid of excessive heavy items too.
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