1999 - 2006 (GMT800) Section for all discussion related to the 1999-2006 Chevrolet and GMC trucks.

Service engine light on and off

Old Jan 12, 2018 | 4:51 PM
  #1  
Jcm59's Avatar
Thread Starter
CF Beginner
 
Joined: Jan 2018
Posts: 7
Likes: 0
Default Service engine light on and off

We have a 2006 Silverado 1500 extended cab. The service engine light has been coming on and going off for sever years. We first took it to the dealer and they said nothing wrong with it and it was probably a faulty sensor and would have to replace the instrument panel. I could not afford that it seems to come and go off when ever we hit a bump in the road. We live on a dirt road and it is a little rough but it can just be a bump going down the street. We have alway been lucky in the sense that it has been off when it ever we have to get it smoged. But lately it has been staying on for long periods and it is due to get smoged next month if it is on it won’t pass even if there is nothing wrong. Not sure how to fix this.
Reply
Old Jan 12, 2018 | 9:44 PM
  #2  
tech2's Avatar
Super Moderator
 
Joined: Mar 2011
Posts: 9,175
Likes: 521
Default

get the code read and post the code here
Reply
Old Jan 13, 2018 | 12:04 AM
  #3  
Jcm59's Avatar
Thread Starter
CF Beginner
 
Joined: Jan 2018
Posts: 7
Likes: 0
Default No codes

there are no codes that’s the problem if there was I would no what to fix
Reply
Old Jan 13, 2018 | 5:31 PM
  #4  
tech2's Avatar
Super Moderator
 
Joined: Mar 2011
Posts: 9,175
Likes: 521
Default

hard to say over the internet...my best guess would be a cluster problem. if you could get a cheap one from pnp to swap in. if that fixes it have it sent away for programming.
Reply
Old Jan 13, 2018 | 5:56 PM
  #5  
Jcm59's Avatar
Thread Starter
CF Beginner
 
Joined: Jan 2018
Posts: 7
Likes: 0
Default

What is a cluster
Reply
Old Jan 14, 2018 | 1:19 AM
  #6  
oldchevy's Avatar
CF Monarch
10 Year Member
Liked
 
Joined: Apr 2012
Posts: 6,216
Likes: 438
From: Miami, FL.
Default

Instrument cluster or as you called it instrument panel.
Reply
Old Jan 14, 2018 | 1:19 AM
  #7  
tech2's Avatar
Super Moderator
 
Joined: Mar 2011
Posts: 9,175
Likes: 521
Default

instrument panel cluster...the mil light that is coming on...its part of the cluster.
Reply
Old Jan 14, 2018 | 8:30 AM
  #8  
Jcm59's Avatar
Thread Starter
CF Beginner
 
Joined: Jan 2018
Posts: 7
Likes: 0
Default

Than you I will look into replacing it hopefully not to difficult. It’s due for a smog and the light was off yesterday hopefully it stays off tomorrow so we can get it smoged. Is there a part inside the panel that is responsible for like a loose bulb or bad connection that I can check
Reply
Old Jan 14, 2018 | 1:32 PM
  #9  
tech2's Avatar
Super Moderator
 
Joined: Mar 2011
Posts: 9,175
Likes: 521
Default

its a led soldered to a circuit board. youtube it.

to pass the emissions test...the mil must come on at key on as part of the bulb check function. Its should turn off when started and all of the I/M monitors must run and pass. If any are incomplete...no pass.
Reply


Thread Tools
Search this Thread

All times are GMT -5. The time now is 1:57 AM.