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the engine light just came on...

any online sites specializing in autmatic transmission and its eletrical components of a 1999 yucon denali that render the transmission to not having any gears i had a transmission blow its clutch making a terrible noise this time it just stopped working barely a noise when it went almost a disengage noise then no more noises and no more movement 2 or 4 wheel drive leading me to believe its eletrical some eletrical component names may help in my trouble shooting

i changed my transmission! 1st problem motor wouldnt start unless i went to starter. seems the small wire no longer worked. i figured we pinched it. so we ran another wire to crank fuse.it only had power when starting truck.i noticed gear shift light was out!(whatever)so anyway it worked this way for a week.then a quiet clank and then i lost all gears at about 10 mph.when i shift threw gears motor idle doesnt change what happened?please tell me!i would rather change an eletrical part than the whole transmission! thanks for any suggestions.

there are only two screws and no socket or other release that i can find

I was told noone makes them for Denali anymore

Recently, my cruise control only worked when it was warm.
Now, the cruise control light is on but the cruise control isn't working?

THE WIPER INTEMIT SW IS NOT WORKING..

the reading said Evap flow non-purge condition:
EMC has detected pressure in the EVAP system during non-purge condition

problem has occured for the past 2 weeks.

i just put a new engine in a 1999 gmc yukon denalie it has a rebuilt transmission with less than 500 miles on it , i left the tranny in the truck dureing removeal and installation of the engine i have checked for broken wires with no luck and nothing is unpluged 1st and 2nd work fine but when it shifts to tird it's ike yo put te truck in neutral any suggestions ?

had code checked and it said gas recurculation flow insufficient does anyone had this problem

JUST STARTED HAPPENING. IS THE THERMOSTAT BAD OR WHAT IS CAUSING THIS?

already had one replaced under warranty, and now another has failed, estimate of $230!!!!!!!

my car started making a loud noise underneath my truck an was told it was my transfer case need help fast part is too high

My husband changed ignition switch and the security system activated now my car won't start or even roll engine and I lost power to just about everything locks radio on star ,windows all dash indicator lights come on

between a 2002 and a 2006 GMC Yukon Denali?

and also the evaporater canister if I should have to replace it also. please send me picture digram thank you

Fuel milage has decreased significantly due to such.

I want to replace the lite bulb on the right headlite.

How do you get at the bulb?

It lasts about 3 months.

It seems to happen when a/c on?

worried about ffuel mileage

My gas tank suddenly has become very slow to fill when refueling. I was told that it is likely a stuck tank vent valve.

Just stopped opening one day. Took it to the dealership and had disagnostic test done- showed nothing was wrong. Fuses were checked with no issues. The dealership said they would replace the entire back door locks for $500, but still couldn't guarantee that it would solve the problem. What else can i do?

Can you explain how to fix the suspension system ?

There is no temp sender on this vehicle. Is the engine temp mechanical controlled thru the BCM or PCM? All other gauges work fine and there is no CEL on. It does have the temp sensor at the front of the left head. I know a BCM replacement requires work with a TECH II scanner and online with GM and about $800 at the dealer. Thank you for any input.

I have a 1999 Denali and the headlights come on during the day, but at night they shut off.

Code indicates electronic front end sensor fault

air ride control system light is on