GM Truck Club
Founded in 2004 ~ We're the #1 Chevy Truck & SUV Forum.
Silverado & Sierra | Tahoe & Yukon | Suburban & Yukon XL | SUV & CROSSOVER
Results 1 to 3 of 3
  1. #1
    Join Date
    Mar 2009
    I live in GA about 2 hours north of Atlanta

    Default 2004 Colorado having issues.....

    I wanted to see if anyone else was having issues like this or knew anything about this.

    I have an 04 Colorado with the 2.8 L, that I just bought so I dont know the service history. It idles really bad like there is either a vaccum leak or something along those lines. It is worse when you are coming to a stop and let off the throttle. It never dies though, just seems like it might.

    The other day while this was happening the oil light came on and a chime went off. When I stopped to get fuel I went ahead and checked the oil level. On the dipstick the level was full, but it was "foamy" like there was water in the oil. I am thinking this might be a sign of a leaking head gasket. If this is the case I am wanting to find out if anyone has ever dealt with this and to find out if these trucks have a problem with the heads cracking or is this something that I can just pull apart and send the head to be milled and then reinstall with a new gaskst.

    Any help will be greatly appreciated.

    I am a BMW mechainc, but I have never dealt with these trucks. So I do have mechanical knowledge. I am just trying to find out if this is a common occurence or anything really.

  2. #2
    TRPLXL2's Avatar
    Join Date
    Jan 2009
    Norwalk, Ohio
    Blog Entries


    A guy I work with had a 2005 Chevy Colorado he bought brand new, it had the 3.5 though. His truck was doing the same thing as yours, so he took it to the dealer and the found that when the engine was put together whoever put the gasket on put it on backwards. So they fixed it under warranty, but I actually saw pictures of it and it was obviously put on incorrectly. Just a little head up, he only had 10,000 miles on his truck when that happened.
    2004 Chevy Colorado
    LS1 5.7 swap/TBSS rear axle swap

  3. #3

    Default 04 colordao

    i have a 04 colorado and i got a letter from gm saying that they were having troube with the intake valve seats wearing and wouldrepair them up to 7 years or100.000 miles. that mide be part of your problem

Similar Threads

  1. Minor Electrical issues with 2004 Colorado that are annoying
    By ajbellis in forum Chevy Colorado Forum (GMC Canyon)
    Replies: 7
    Last: 07-08-2011, 08:17 PM
  2. Replies: 0
    Last: 05-30-2010, 01:00 AM
  3. 2004 colorado 4x4
    By jrmco1 in forum General Chevy & GM Tech Questions
    Replies: 3
    Last: 08-10-2009, 10:01 PM
  4. Colorado wheel issues
    By bigrob1977 in forum Lifted & Offroad Suspension
    Replies: 1
    Last: 07-07-2008, 03:29 AM
  5. 2008 Chevy Colorado Pickup Trucks - About - News & Issues
    By ChevyFan in forum Chevy Colorado Forum (GMC Canyon)
    Replies: 0
    Last: 12-22-2007, 09:59 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