1998 GMC 3500 Pickup Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 1998 GMC 3500 Pickup
Verified by mechanics, reported by drivers like you
Ask a mechanic in our community
Never overpay. Check prices with our estimator
1998 GMC 3500 Pickup ProblemsCheck Engine Light Due to Gas Cap Issue
Illumination of the Check Engine Light can be caused by a loose or worn gas cap.
The engine may develop a misfire due to worn valve seats. This fault will cause the Check Engine Light to illuminate. Our technicians tell us the misfire may or may not be felt while driving. They further recommend that both cylinder heads be removed and thoroughly inspected and repaired as necessary.
One or more fuel injectors may become stuck closed causing an engine misfire and the Check Engine Light to illuminate. Our technicians tell us that this problem can be caused by some fuel additives. There are special procedures which may be able to restore the affected injector. If this fails the affected injector must be replaced.
1998 GMC 3500 Pickup QuestionsWhy does my truck stalled when I push the accelerator (2 answers)
Why does my truck stalled when I push the accelerator it started happening all of a sudden one night when I was driving home had to have the truck towed home
Just picked up this truck and batteries seem a little weak on start up. Want to change one at a time, so want to change the primary first. Assuming it's the one nearest the starter, but want to confirm that and that you can do just one at a time. Thanks
I have a 1998 3500 Savannah short School bus that I converted into a vending bus..I drove it for 4 years fine..Last year it started where I have to jump it everyday before I can drive it..Can anyone help me..I do NOT leave anything plugged in.