1999 GMC Yukon Questions

All 1999 GMC Yukon Questions

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It runs for a second then dies. It has spark and fuel.
I did it once with rtv silicon but it didn't hold now i have the right gasket
I HAVE BEEN FILLING UP AND JUST GOING OFF THE TRIP AND GETTING AROUND 320 MILES BEFORE I FILL UP. GAS GAUGE DOES NOT MOVE OFF FULL MARK TILL AROUND 250 MILES I KNOW THIS IS NOT CORRECT.
we changed the rear end before the rearend went out it was shifting fine now if you put it in drive it wont take off but if you put it in low it will shift fine manually and pull good
Freon level is good, clutch is operational. But do not have any service lights on.
I have gone about 240 miles and it is reading between 1/2 and 3/4 tank I know that's not correct. Then sometimes it will start to work. What would cause this?
3 weeks ago I turned my AC on, it blew for about 3 mins and stopped. No blower at all, nothing. I stopped at my destination and when I started the truck again, all was normal again. Now two days ago the same thing hap...
A week ago car showed code P0171. Shop cleaned throttle body, found no vacuum leaks, and cleared code. One week later engine light came on, code was P0741. Shop diagnosed as the torque converter solenoid was stuck in ...
My 99 Yukon has brand new tranny and motor. Was driving and it suddenly cut out like it was going to die and running rough. Got it home and it started misfiring and making ping and pang sounds. Checked fuel pressure w...
Need to replace the module it keeps blowing fuses and will not shift in or out of 4 wheel drive
Just picked up the vehicle it has new cap rotor plugs wires checked fuel pressure is good at 60lbs and holds 45-50lbs when left to sit for an hour any other ideas?
automatic shifter into any drive positiom it grinds. the same noise a manual does notusing a clutch
its not making any type of noise it had not been driven for a while once before I took the battery out to reset and it worked normal I changed them and unhooked the battery to reset and it didn't work this time
my 1999 yukon sle after running the vehicle about an hour and park it when i go to restart it it just cranks and will not fire. let it sit a day and try it it will start. i have changed all plugs cap and rotor fuel fi...