Go Back   Chevrolet Forum - Chevy Enthusiasts Forums > Current Chevy Trucks, SUV's, Crossovers & Vans > Silverado & Fullsize Pick-ups
Sign in using an external account
Register Forgot Password?
Search

Silverado & Fullsize Pick-ups The Silverado has been one 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
Sponsored by: Bakliner

Reply
 
 
 
 
LinkBack Thread Tools
  #1  
Old 03-13-2010, 08:53 PM
CF Beginner
 
Join Date: Mar 2010
Posts: 2
Default OBD II Trouble Code Po128

Getting trouble code P1028. Have replace the ECT. Cleared code and less than week later code back. Temperature guage appears normal (~195 degrees when warmed up). Is there another temp sensor somewhere as the code will clear on its own if the outside temp is below 45 degrees. Manual states that ECT acts as both the temp sending unit and input for PCM. What should next step be?

2006 Silverado, 4.3L V6 with approximately 85K.
Register today for free or log-in if already registered to remove this ad!

Last edited by jcolpaert; 03-13-2010 at 09:52 PM. Reason: Adding truck information
Reply With Quote
  #2  
Old 03-13-2010, 08:55 PM
CF Junior Member
 
Join Date: Jan 2010
Posts: 85
Default

year make model of truck
Reply With Quote
  #3  
Old 03-13-2010, 09:04 PM
maxxman04's Avatar
CF Veteran
1990 Chevrolet Camaro
 
Join Date: Dec 2009
Location: kentucky
Posts: 1,854
http://www.facebook.com/home.php?ref=hp
Default

yeah, we're gonna need the vehicle specifics. typically tho, there is a sending unit for the gauge, and another sensor for the ecm.
__________________
rednekper4mince. keepin duct tape and bailing wire in business.
Reply With Quote
  #4  
Old 03-13-2010, 09:43 PM
MDTAHOE's Avatar
Super Moderator
Professional Mechanic
 
Join Date: Nov 2008
Location: Bowie, MD
Posts: 2,955
Default

Replace the t-stat. 99% of the time it takes care of the problem.
__________________
ASE Master Tech, L1 Advance Engine Performance certified
__________________________________________________ ___________________________
I will not answer repair questions by PM, if you would like my input you can PM me and ask me to reply to your public thread.
Reply With Quote
  #5  
Old 03-23-2010, 12:10 PM
CF Beginner
 
Join Date: Mar 2010
Posts: 2
Default

Thanks. Thermonstat replaced and problem solved. Suspect old thermostat was opening too soon. Thanks again!
Reply With Quote
  #6  
Old 03-23-2010, 07:41 PM
per per is offline
CF Beginner
 
Join Date: Mar 2010
Posts: 1
Default p0128 code

replaced thermo and added coolant still have ck eng light
Reply With Quote
Old 03-23-2010, 07:41 PM
 
 
 
Reply

Tags
128, 1500, 2004, 2006, 43v6, chevy, code, codes, dtc, gm, ii, malibu, obd, p1028, po, po128, trailblazer, trouble


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 On
Trackbacks are On
Pingbacks are On
Refbacks are On


Join Chevroletforum
Advertising

Featured Sponsors
Vendor Directory
Our Sponsors
All times are GMT -5. The time now is 04:54 PM.

Internet Brands, Inc.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO ©2010, Crawlability, Inc.

Emails Backup