GM Truck Club
THE PREMIER CHEVY TRUCK & SUV FORUM
Founded in 2004 ~ We're the #1 Chevy Truck & SUV Forum.
Silverado & Sierra | Tahoe & Yukon | Suburban & Yukon XL | SUV & CROSSOVER
Results 1 to 5 of 5
  1. #1

    Default Service Engine Light

    I have a 2003 TrailBlazer, recently purchased it used, no Car Fax purchased before buying the Chevrolet. Has been running fine, a clicking noise every now and then from under the hood. Service Engine light came on when turning a corner this afternoon. Fluids look ok and are full, had to add a little bit of coolant. Belts are ok. Anything else I can check or I should do before taking it in for service? I had a MPV a few years ago that did this right under 80K miles (which the TB is at now -- about 78K miles) and all that was going on w/ it is that it needed the exhaust system serviced. Wondering if this happens w/ the Trail Blazers as well. Thanks for any tips, advice, etc.

  2. #2

    Default

    Quote Originally Posted by pennyhm View Post
    I have a 2003 TrailBlazer, recently purchased it used, no Car Fax purchased before buying the Chevrolet. Has been running fine, a clicking noise every now and then from under the hood. Service Engine light came on when turning a corner this afternoon. Fluids look ok and are full, had to add a little bit of coolant. Belts are ok. Anything else I can check or I should do before taking it in for service? I had a MPV a few years ago that did this right under 80K miles (which the TB is at now -- about 78K miles) and all that was going on w/ it is that it needed the exhaust system serviced. Wondering if this happens w/ the Trail Blazers as well. Thanks for any tips, advice, etc.
    Welcome aboard pennyhm, The clicking noise could be 100 things. As for sevice engine soon light you'll need to identify code for sure. Depending on that exhaust leak (how big) it could be back pressure issue. My 03 was missing 3 PCM updates on software and O2 sensor was gone, but engine light was not on go figure. It would barely run at one point.
    See what dealer says and go from there. Good luck



    Jamie

    2007 Ford E250(Work van) (Ya, Ya, shut up!)
    1996 GMC Sierra SLE 1500 5.7L/4L60E

  3. #3

    Default

    Thanks cableguy. A question .. how do you get PCM updates? From the dealership? thanks!

  4. #4
    Legend unplugged's Avatar
    Join Date
    Sep 2006
    Location
    High Deserts of SoCal
    Posts
    2,554

    Default

    You can go to many local parts stores ie; AutoZone and they can read the codes. With the code info we might have more info for you.
    There is no way to happiness....happiness is the way.:yipi:
    http://kx6ijq.blu.livefilestore.com/y1pcOFVNH4ix1hjyGUVyXK5LRfef7qSeWzlZDorpQhIEfkZ2ZA  _vXMYypuKMJFw671uF2ZPhjez_j-atRmcjM2zQKpQi1JSsB75/burb1.JPG
    High Desert SoCal
    93 K1500 burb (personal) 350 AT 3" Lift 250K+
    02 Honda Civic LX
    Looking for a 1990's Miata for an engine swap

  5. #5

    Default

    Quote Originally Posted by pennyhm View Post
    Thanks cableguy. A question .. how do you get PCM updates? From the dealership? thanks!
    To my knowledge you can only do baseline software updates at dealership.
    Mine ran smooth as glass after update. I don't think I paid anything.

Similar Threads

  1. service engine soon light
    By big bopper in forum General Chevy & GM Tech Questions
    Replies: 8
    Last: 05-27-2010, 07:05 AM
  2. Service Engine Light?
    By sc99z71 in forum GM Powertrain
    Replies: 10
    Last: 02-08-2010, 03:10 PM
  3. The old service engine sonn light???
    By SHOPEY in forum General Chevy & GM Tech Questions
    Replies: 16
    Last: 12-15-2008, 02:35 AM
  4. Service Engine Soon Light
    By cornboy in forum Chevy Suburban Forum (GMC Yukon XL)
    Replies: 26
    Last: 09-18-2007, 01:57 PM
  5. Service Engine Light---Gas Cap
    By Bryan in forum The Coffee Shop ~ Chit Chat
    Replies: 5
    Last: 08-26-2005, 09:20 PM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •