Silverado, Sierra & Fullsize Pick-ups The Silverado & Sierra have been two of the best selling trucks in the US for decades, and is truly proven to be "like a rock".

2014 Chevy Silverado
Platform: Truck, GMT 400, 800, & 900

1999 4.3 Silverado no power under load.

Old Jun 15, 2022 | 12:26 PM
  #1  
Wayne4750's Avatar
Thread Starter
CF Beginner
 
Joined: Jun 2022
Posts: 2
Likes: 0
Default 1999 4.3 Silverado no power under load.

I installed a refurbished ECM in this truck due to problems unrelated to this issue. Runs decent except when going uphill or pulling a trailer. No codes, EXCEPT when after a few miles the brake light and ABS light comes on. There is no problem with the brakes. Did I read somewhere that it has to be taken to a dealer and have something reset in the ECM related to brakes for it to run right?
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Rick Cruz
General Tech
2
Mar 18, 2021 8:50 PM
alwaysfixin
1999 - 2006 (GMT800)
2
Oct 12, 2018 12:28 PM
bmcnair
General Tech
0
Jan 27, 2012 6:02 PM
miiller
Silverado, Sierra & Fullsize Pick-ups
3
Oct 12, 2009 9:33 PM
hotrod032
Tahoe & Suburban
2
Mar 20, 2008 9:34 PM


Thread Tools
Search this Thread

All times are GMT -5. The time now is 8:43 PM.