Sign up to remove ads. We'd love to have you amongst our ranks! Just Click here!

gmc forums   gmc forums

Go Back   GMC Forums > GMC Vehicles Currently In Production > GMC Savana Forum

gmc hummer ev forums

GMC Savana Forum Forum for discussions regarding the GMC Savana

GMC Forum: 2003 Savana - Stalling out
Thread Tools
Old 09-22-2016, 05:13 PM
Tomnibus Tomnibus is offline
Junior Member
Drives a GMC Truck
Join Date: Sep 2016
Posts: 1
Default 2003 Savana - Stalling out

I have a 2003 GMC Savana 6.0 V8.

I started having this problem several years ago. The van will idle very low and then stall out. So, if I keep it alive long enough to get out of my driveway, I will stall out while pulling up to the stop sign at the end of the street. Driving two-footed to keep it alive is the work-around. There is NO check engine light.

The van acts normally after a while. But on days like today, it took several trips before "a while" came. Sometimes it's bad until we get on the freeway and is fine the rest of the day. When it stalls out, nothing works, no steering, no brakes, nothing. So, it's not good when my wife forgets to drive two-footed and she drifts through a traffic light while holding down the brakes as hard as she can.

What have I tried to fix this? Let me count the ways, Everything I have tried keeps it running between 1-2 months with no problem and then the problem comes back with a vengeance.
  • Replaced Fuel Filter (this was changed a year before the problem started, perhaps need to change again?)
  • Cleaned Mass Airflow Sensor (no change)
  • Cleaned Air intake manifold (it is super clean, helped for a week)
  • Replaced Idle Air Control electronic doo-hickey (Fixed it for about 4 months)
  • O2 Sensors are only about 1 year old
  • Wires and plugs were replaced 3 years ago and the wires were replaced again a year ago when I had problems with a coil pack.
  • A friend tested the fuel pressure and that was fine.
  • Started using Lucas Oil engine cleaner with every fill-up. (had much less problems but still randomly stalling)
  • Started using BP Gas only (with invigorate!) and I had no problems for a month. Then we put in another brand and immediately had problems so we went back to BP.
  • After going back to BP for three full-ups, the van had a very bad day today.

I am clueless as to what to look at next. This is becoming a big problem. I had a friend who spent over $2,000 with mechanics trying to solve this same problem.. his solution? He traded it in.
Reply With Quote

Old 09-02-2018, 05:01 AM
tomasw tomasw is offline
Junior Member
Drives a GMC Savana explorer se 2004(5.3L)
Join Date: Sep 2018
Location: Sweden
Posts: 2

I'm new here (and no native speaker/writer).

I had this problem with an older G20 van
At some occations the car started to shudder on idle and if I was'nt compensating with the accelerator (two-footed), it would die and get really hard to start after stalling.
The easy fix on that was the engine temp sensor for the computer (you got two, one for the gauge and one for the comp.)
That happend as the temp sensor told the computer that the engine temp was -30 degrees and the engine management did overcompensated fuel, that killed it all.
Can be a faulty sensor, bad wiring, oxiding...

Our savanas does'nt have a EGR? as stuck open it can do the same (but I dont think there is one)
Reply With Quote
Old 09-02-2018, 05:15 AM
tomasw tomasw is offline
Junior Member
Drives a GMC Savana explorer se 2004(5.3L)
Join Date: Sep 2018
Location: Sweden
Posts: 2

oh no, find an old post... lets hope it's already fixed...
Reply With Quote
Registered members see less ads. Please sign up! We'd love to have you...

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

All times are GMT -5. The time now is 06:10 PM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, vBulletin Solutions Inc. recognizes that "GMC", it's logos and various model names and numbers are registered trademarks of the General Motors Corporation. These terms are used for identification purposes only. is not affiliated in any way with the General Motors Corporation, GMC or any other company listed herein. All information on this site is the opinion of its members and not the opinion of the site itself. 2017 Madison Ross Media Group. All rights reserved. Content published on requires permission for reprint.

Need products for your GMC Truck? Check out your options at the links below:

Looking for something a little sporty? Believe it or not, Kia may have something for you. The Kia Stinger is a large sport-oriented hatchback sedan in the mold of the Audi A7. The Kia Telluride is a mid-size SUV similar to the BMW X5...