1998 GMC Sierra 2500 Consumer Discussions

Chevy Silverado and GMC Sierra Stalling Problem

Re: 1998 2500 GMC Sierra [jumlah]

Written by: mickeymouse2 on Apr 10, 2008 07:05 AM

A lot of miles on this truck. Here is what to look for. I understand mechanics have checked this, but maybe they over looked the obvious. Low idle than normal may be the key to this. Check fuel pressure, and throttle body for carbon build up. IAC (idle air control) valve may be malfunctioning and not setting a code(pintal may be stuck in wrong position) I have run into ... Read More...

1998 2500 GMC Sierra

Written by: jumlah on Apr 09, 2008 10:21 PM

I have a 1998 2500 sierra that I bought used.. Automatic. 256,000K I had the rad changed and the original manifold gasket changed at the same time a few months ago. After the work was done, I noticed a hesitation in the "power band" almost like the engine was misfiring. It was very subtle and easy to miss. there is no hesitation while moving up through the gears until ... Read More...

GMC Sierra: Problems & Solutions

1998 gmc sierra will not start

Written by: woody12 on Jan 02, 2006 08:41 AM

this is a gmc 4x4 2500 with a 5.7 liter I have had this truck for about 4 yrs and it has had this problem about 9 times (turns over great but will not fire) usually after about 3hrs to 3 days it will start and run great. I can't find out what is causing this problem. I have been lucky in that it never quits while running just after sitting a while. I have done these tests replaced ... Read More...