1997 Yukon GT UP Hilol Hesitation

rican4lfe · #1 07-15-2005, 07:08 PM

For the last few months my Yukon has been hesitating going up hill, have changed spark plugs, air filter, intake manifolds etc. Any ideas???

2000CAYukon · #2 07-15-2005, 07:23 PM

Fuel Filter? What is the fuel pressure? When the intake gaskets were replaced, was the timing set with a scan tool?

//2000CAYukon

rican4lfe · #3 07-15-2005, 07:28 PM

Fuel filter was replace, preasure is normal, head gasket was checked for leaks, no leak. Any other ideas

rican4lfe · #4 07-15-2005, 07:33 PM

Quote:

Originally Posted by 2000CAYukon

Fuel Filter? What is the fuel pressure? When the intake gaskets were replaced, was the timing set with a scan tool?

//2000CAYukon

Fuel filter changed, fuel preasure normal, intake gasket replace and no leaks, have not taken it to adjust the timming..

2000CAYukon · #5 07-15-2005, 08:28 PM

Timing can only be set with a scan tool on the 96-99 Vortec Engines.

Sounds like that should be the first thing to check.

//2000CAYukon

rican4lfe · #6 07-15-2005, 10:56 PM

Quote:

Originally Posted by 2000CAYukon

Timing can only be set with a scan tool on the 96-99 Vortec Engines.

Sounds like that should be the first thing to check.

//2000CAYukon

Can I buy the scan tool, if so where can I find it at a decent price. Thanks for all your help