1994 GMC Sierra 1500 Consumer Discussions

GMC Sierra: Problems & Solutions

94 gmc sierra 1500 cutting out....

Written by: duffman2000 on Mar 05, 2006 09:26 AM

I have a 1994 GMC sierra 1500 that cuts out when idling but once I give it gas it is fine. I have replaced the fuel filter and it hasn't helped. When it starts to cut out the brake light on the dash lights up, is this significant? Someone told me that it could possibly be something in my gas tank causing the problem, is that something I should get checked? I also changed ... Read More...

Re: 1994 GMC Sierra 1500 Failing Emissions...Low Idle Cyclical Stalling/Surging [jstrong]

Written by: canamguy on Jun 17, 2005 11:35 AM

I have a 1992 had the same problem and it is the EGR to a degree. What is happening is your eprom is signalling the vacuum to open and close the EGR at the wrong times and when it does this it cause the surging and stalling effect. Since emmission control here in northern NY is lax. rather than screw with the electronics. I simply unhooked the EGR. (plugged the hose) so ... Read More...

Re: 1994 GMC Sierra 1500 Failing Emissions...Low Idle Cyclical Stalling/Surging [wolfdog]

Written by: jstrong on May 16, 2005 08:02 AM

wolfdog, I had one hit indicating that it could be the fuel pump going out...I had the gas tank off a year ago to replace the brake line and had to take the pump off because I broke the ground lead and had to drill through the plastic electrical housing to resolder the lead...coincidence? I did replace the gas filter and that did not solve my problem. I haven't replaced ... Read More...

Re: 1994 GMC Sierra 1500 Failing Emissions...Low Idle Cyclical Stalling/Surging [wolfdog]

Written by: damurph on May 15, 2005 11:00 AM

I have a 92 GMC Sierra 1500. I had a problem with idle cycling between stalling and surging right before my fuel pump went out. After replacing the fuel pump I could start the truck, it would idle a little rough, then surge and die. I found the more severe problem to be a vacuum leak. I hope these potential problems point you in the right direction. Read More...

Re: 1994 GMC Sierra 1500 Failing Emissions...Low Idle Cyclical Stalling/Surging [jstrong]

Written by: wolfdog on May 12, 2005 01:33 PM

i am also having this problem and was wondering if you had any hits? Read More...

1994 GMC Sierra 1500 Failing Emissions...Low Idle Cyclical Stalling/Surging

Written by: jstrong on Apr 15, 2005 07:44 AM

The truck is a 1994 GMC Sierra 1500 truck w/approx 170K miles on it. I would appreciate any feedback on my problem... I have had emissions problems for a few years now as can be seen in the following emissions transcript... Emissions Inspection 6/4/2002 Hydrocarbons (HC) – Inspection 5.3095 – Requirement 2.7000 FAIL Carbon Monoxide (CO) – Inspection 35.3126 ... Read More...