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 6 of 6

Thread: coolant leak

  1. #1
    Sr. Apprentice
    Join Date
    Aug 2009
    Location
    Lincoln, NE
    Posts
    58

    Exclamation coolant leak

    first off, hi everyone. i have an 04 tahoe lt with 89000 miles on it. over the past few months i have been having to put a lot of coolant in. i have no signs of leaks anywhere. i spoke to a mechanic friend with a suburban and he said that his truck did the same thing and ended up being a recall in which the engine was replaced by the dealership for free. has anyone else heard of this and if so know how to go about it? thanks for the help.

  2. #2

    Default

    Welcome to the site! My '04 has needed coolant, recently but I have not been able to find where is going. I have not heard of this being a "re-occuring" problem. I have 128,000 miles on mine so I doubt if
    GM would be interested in replacing my engine. Good luck, I'm sure you will get some more answers.


    2010 Z/71 Colorado C/C
    Black 4X4 w/5.3L V8
    ===============
    2007 Winnebago Adventurer
    w/8.1L Chevy & Allison 6spd.
    Canyon Lake, Texas

  3. #3
    Legend unplugged's Avatar
    Join Date
    Sep 2006
    Location
    High Deserts of SoCal
    Posts
    2,554

    Default

    Excessive coolant loss is never a good sign. If you don't see puddles under your truck then the coolant is leaking into the engine.

    Common places to check for a leak are:

    • Head gaskets
    • Intake gaskets
    • Cracked head or engine block

    Don't wait on this. Serious damage to the engine and cooling system will result. I use a [ame="http://www.amazon.com/Stant-12270-Cooling-System-Pressure/dp/B0002SRGWU"]cooling system pressure checker[/ame] when trying to pinpoint a leak. Also another good tool is a [ame="http://www.amazon.com/Universal-Test-Tools-BT-500-Combustion/dp/B000I17Z68"]combustion leak tester[/ame].

    For specific recall campaigns check the DOT website: http://www-odi.nhtsa.dot.gov/
    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

  4. #4
    Sr. Apprentice
    Join Date
    Aug 2009
    Location
    Lincoln, NE
    Posts
    58

    Default

    after more investigation, i noticed that my muffler has signs of damage due to water, almost rusting from the inside. is this another symptom, or a new problem?

  5. #5
    Legend 2ToNe04's Avatar
    Join Date
    Apr 2009
    Location
    Fresno California
    Posts
    1,030
    Blog Entries
    1

    Default

    Quote Originally Posted by ferg's04 View Post
    after more investigation, i noticed that my muffler has signs of damage due to water, almost rusting from the inside. is this another symptom, or a new problem?
    you could have just gone over a puddle and got the muffler wet.

    also some signs to check, is if white smell smoke comes out your exhaust.

    and like unplugged said, you might have a broken gasket and its causing it to leak into the engine.

    2004 4.8| Custom Paint| Tint| De-badged| Shaved Tailgate| Rollpan| Smoked Tails| Color Matched| Lowered 5/8| Suede Interior| Color Matched Interior| Indash & TVs| Mids-Lows & 2 12" CVRs| 500 & 1100 Interfires| Soundeadener| Outlaw CAI| Magnaflow|
    Future Mods: 6.0 LQ4/9| Bags|

  6. #6
    Sr. Apprentice
    Join Date
    Aug 2009
    Location
    Lincoln, NE
    Posts
    58

    Default

    my tahoe sat all night as i just painted the calipers and inspected the brakes. i thought it was brake fluid but it was water leaking from the back of the muffler. i took it to the dealership today and have an appt for friday. the dealership said they would inspect the intake manifold and see if gm will pay...or me

Similar Threads

  1. coolant leak...
    By OkieMike in forum GM Powertrain
    Replies: 5
    Last Post: 08-29-2010, 07:48 AM
  2. Coolant leak
    By walterc in forum Chevy Silverado Forum (GMC Sierra)
    Replies: 5
    Last Post: 08-27-2010, 06:04 PM
  3. Coolant Leak
    By eatfire in forum GM Powertrain
    Replies: 4
    Last Post: 07-05-2010, 03:32 PM
  4. Coolant Leak
    By kjrmayfield in forum General Chevy & GM Tech Questions
    Replies: 1
    Last Post: 02-20-2008, 05:53 PM
  5. coolant leak...
    By OkieMike in forum GM Powertrain
    Replies: 5
    Last Post: 02-04-2008, 09:03 AM

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
  •