2006 GMC Sierra Denali - Answered Questions & Fixed issues

You have a bad ground wire. It will be eithr the ground on the trailer or the car harness. To confirm this diagnosis, take a set of jumper cables and hook one end to the trailer tongue and the other end to the car hitch. If your lights work, then you know it is a ground. The other possibilty is that you have a blown fuse.

check your manuals guide book on reprogramming the radio and where would you find the fuse for the radio first check the fuse then reprogram if this information has been helpful please let us know good kuck

U might have to have it re coded at the dealer . My aux input broke on my 2010 Chevy truck my buddy had replaced . He has the same year truck and gave me his old one put it in , didn't work so I called the deal ship and they said it has to re done

it is located at the back of engine on top middle, behind intake. you have to remove sight cover. you will need a special socket

Its your Throttle body going bad.. $400.00 at dealership

Replace the starter relay under hood in fuse panel and make sure you have a good ground to the battery.

Go to a GMC dealer, ask a salesman to get your owners manual out and read you the instructions.
If you can't read them yourself, then reprinting them here makes no sense.

HI there. I am pretty sure that there is no correlation between the a/c not blowing and the emissions light. Does that air only not blow when the a/c is on or does it not blow when the heater is on as well. A main reason that would cause the air to not blow for the a/c is if the fan is not working. A blown fuse, blown relay, bad wiring and mechanical defects in the blower unit would cause failure. As for the emissions light there are litterally dozens of things that would turn that on ranging from bad O2 sensors to clogged EGR. Take the car to an auto parts store light NAPA or Car Quest to have the trouble codes read for free.

Hello: If when yor truck is running it reads 80psi all the time it could mean you have a bad wire or a failed sensor. The sensor is located in the back of the intake manifold which has to be removed to allow access to the sensor to replace it.

How did you jump it? If connected the jumper cable to a bolt stud on the fuse panel, you might have blown the Mega Fuse.

Check for loose wire at starter, try to turn motor with bypass at starter.

I suspect the shaft you are talking about is in the notorious GM steering column.
The one that makes the noise is called the "intermediate shaft".
Any GM parts guy out there could probably find one on his shelf in the dark, very common problem.

there is a problem with the steering shaft going to gear box 2 out of 10 trucks have this problem gmc and chevy ive done a few, its a dealer part, replace that first then see if the other rubbing noise is there, but the knock noise is the shaft, i had 2 with about that mileage they were out of warranty, good luck start there first.

Check the alternator, maybe is broken or working bad, and dont send charge to the battery.

Is hydrloic system working when you start your car usually the hydraulic system works around 5 minute the ride control it?s the rear chock absorbers so, if it's not working check the(RTD fuse)in fuses box in the engine area under the hood

Check for any disconnected harnesses that may become disconected when installing the kit,

usually there not replacable but on the other hand when we at the dealer take them out we send them to a gm authorized electronic repair shop that solders in the led lamps and sends them back. I myself have done this to my own cars. if you feel good enough to try opening the unit and looking to see what the lamp is and go to radio shack and pick up a bulb.

The only way to get a broken tap out will be to use a punch and break it out

There is no factory kill switch.
You need to explain your complaint ... Guessing at the reason will not help here.
If the engine spins around with the key but will not start then you have a crank no start. If you kick the bottom of the gas tank whild someone is turning the key to the start position and it starts then you need a fuel pump. Very common and about a $500 job on the low end.

here's a website that has all this information about all this and manuals everything totally free there are many actually but I personally like few .. let me know if u need help thanks