Chevrolet Forum - Chevy Enthusiasts Forums

Express & G-Series Vans Offered in both a full size van, or a large box truck, the Express is the modern GM workhorse

Chevrolet Express
Platform: GMT Van

2003 Express check engine light

Thread Tools
 
Search this Thread
 
Old July 30th, 2008, 10:57 AM
  #1  
CF Beginner
Thread Starter
 
jogodlew's Avatar
 
Join Date: Dec 2006
Posts: 13
Likes: 0
Received 0 Likes on 0 Posts
Default 2003 Express check engine light
My manual says this light indicates an issue with the OBD II, emissions related,and has been on for a couple of days now. It could be attributed to loose gas cap(it's tight), different gas(no). Is there anything else I can check before I take this into the dealer for diagnosis? I am not very familiar with this function.
jogodlew is offline  
Reply Like
Old July 30th, 2008, 2:55 PM
  #2  
Banned
 
shawnvw's Avatar
 
Join Date: Jan 2008
Posts: 2,541
Likes: 0
Received 13 Likes on 13 Posts
Default RE: 2003 Express check engine light
Need to have it scanned to find out why it is on. There are so many codes that could be set it would be impossible to give you any direction
shawnvw is offline  
Reply Like
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
2003 Chevy: Check Engine Light / Reduced Power???
TXPalerider
Silverado & Fullsize Pick-ups
8
November 28th, 2019 7:49 AM
Check engine light and "Check Traction Control" message
redrotor
Cobalt
7
August 29th, 2019 8:38 PM
2001 express 5.7 check engine light P1345
tkbpainting
Express & G-Series Vans
3
July 4th, 2012 12:38 PM
Express 3500 Check engine light?
daycaremom
Express & G-Series Vans
7
April 22nd, 2012 11:46 PM
2003 Silverado-Problem with Windshield Wipers, Horn, and Check Engine Light
Chazzidy33
Silverado & Fullsize Pick-ups
0
January 7th, 2009 10:11 AM
Tags
Back to Subforum
Express & G-Series Vans
View Next Unread
99 EXPRESS 3500 RAN OUT OF FUEL




Advanced Search
Quick Reply: 2003 Express check engine light


Reply Closed Thread Share

All times are GMT -5. The time now is 10:40 PM.