2000 GMC Yukon Questions

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I had a P0430 code show up about 2 weeks ago. About 4 - 5 days ago white smoke began coming out of the tailpipe. It was steam, no gas or sweet smell, and there was also water coming from the tailpipe and after I parke...
Why when i'am driving down the road my voltage meter flickers back and fourth, causing my lights to flicker also. Sitting at stop sign not so much. Also flickers when i use the power windows. Any help would be great.
It won't move when in 2 wheel drive.
The rear door catch for the locks on my 2000 GMC Yukon is preventng the door from closing. It appears that they both came down which is preventing the door from closing...leaving it ajar. Any recommendation.
The lights on the button selector are lit but when I push 4 high or low it stays in 2 high. Any ideas what to check? thanks
The compressor is only 2 yrs old.All the freon is gone. Do I need a new compressor? Will a new pressure sensor fix it? Isn't the sensor supposed to PREVENT this? Thank you. Bill
turn signals work fine until I step on the brakes. then the signs blink rapidly.
My 2000 GMC Yukon hesitates in the 1000 - 1500 RPM range when driving, but only when I am not accelerating. What could cause this? It runs fine otherwise, either below this range, above this range, or accelerating t...
For some reason the truck is burning the heater fan/blow motor and resistor. After replacing it, it burned again and i found iced water inside.
Fail Code P0446A. Also need "New design hose harness Asm." I see the part runs between $20-$50. Is it easy to replace yourself
The last couple of months I had to add coolant every morning before work; water pump, oil pump, resevoir have all been changed; belts and thermostat are new; no coolant is found under vehicle and inside carpet is not ...
My 2000 Yukon loses oil and coolant. No leaks can be found and it holds pressure on the coolant system. I can now add 1/2 gallon every 400 miles or so. The oil loses a quart or more between oil changes. The leaks ...
I had a new transmission installed in my 2000 Yukon and it is having trouble still shifting into any gear but drive and reverse. Could this be a wiring problem? Or could it be something else?
SERVICE RIDE CONTROL LIGHT CAME ON, STAYED ON FOR 2 DAYS...WHILE ON STEERING FELT VERY LIGHT AT ALL SPEEDS...LIGHT THEN WENT OFF AND NOW STEERING FEELS LIGHT AT TIMES BUT AS SPEED INCREASES STEERING BECOMES STIFF...I ...