Thread: Coolant leak?

Results 1 to 7 of 7
  1. #1 Coolant leak? 
    Donating Users LuckyBambu's Avatar
    Join Date
    Feb 2010
    Location
    Chicago, IL
    Posts
    98
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    I recently acquired a 2000 GP GTP. The engine has about 15k miles on it... the second-prior owner to me didn't take very good care of the engine, so the owner prior to me had to replace it with a new one from GM. It's been babied since then, oil changes probably twice as often as need be, only premium fuel, etc.

    I had the car on the lift on Tuesday to replace the passenger front lower control arm bushing, so I figured I'd take a peek at the motor and check things out. I know there's an oil leak, but I'm not so concerned about that at the moment. I don't think I have ever driven a car that hasn't had an oil leak. :P

    I've noticed before that when I start driving (usually before the car is completely to temp), coolant will leak somewhere in the engine and steam off. It's quite a (scary) sight in the middle of winter when there's this billowing mentholy-smelling cloud coming out from under the hood.

    The oil isn't milky or anything and the coolant is clean. The leak isn't very fast--the coolant is a little bit low, but it hasn't been topped off in a few months.

    The leak appears to be on the drivers side of the engine somewhere, but I can't locate exactly where it is. Anyone have any ideas?
    Reply With Quote  
     

  2. #2 Re: Coolant leak? 
    Donating Users bbptech's Avatar
    Join Date
    Jun 2008
    Location
    Box Elder, South Dakota
    Posts
    747
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    check the lower intake manifold. Look where the manifold seats to the heads on front and back and where it mates to the block under the throttle body. your lower intake manifolds gaskets could be shot. just my .02.
    ZZP 10.4mm's, ZZP S2 IC, 3.4, 3.0, Ported Gen V, ZZP Headers, ZZP CNC Heads, ZZP 78mm TB, ZZP Aluminum Valve Covers, Meziere Electric WP, ZZP Fuel Pump, ZZP Fuel Logs, 65 Mototrons, 3.29's, 2500 Stall. Tuned by GLANZERGTX and Kyle. E85 Converted, 21* Timing
    Reply With Quote  
     

  3. #3 Re: Coolant leak? 
    Donating Users LuckyBambu's Avatar
    Join Date
    Feb 2010
    Location
    Chicago, IL
    Posts
    98
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    Considering the motor is only a year old--GM wouldn't have used the new gaskets? Interesting.

    So the gasket is on the drivers' side, then? I've done some more basic work on cars before, but never anything with the motor. Is there a way to replace this without pulling the whole thing out?
    Reply With Quote  
     

  4. #4 Re: Coolant leak? 
    Donating Users bbptech's Avatar
    Join Date
    Jun 2008
    Location
    Box Elder, South Dakota
    Posts
    747
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    I have no clue if they would have or not. Theres a gasket that sandwichs between the head and LIM. then theres a seal on each side of the block that sits under the LIM
    ZZP 10.4mm's, ZZP S2 IC, 3.4, 3.0, Ported Gen V, ZZP Headers, ZZP CNC Heads, ZZP 78mm TB, ZZP Aluminum Valve Covers, Meziere Electric WP, ZZP Fuel Pump, ZZP Fuel Logs, 65 Mototrons, 3.29's, 2500 Stall. Tuned by GLANZERGTX and Kyle. E85 Converted, 21* Timing
    Reply With Quote  
     

  5. #5 Re: Coolant leak? 
    Donating Users bbptech's Avatar
    Join Date
    Jun 2008
    Location
    Box Elder, South Dakota
    Posts
    747
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    this is what gaskets im talking about.

    https://www.zzperformance.com/grand_...=290&catid=103
    ZZP 10.4mm's, ZZP S2 IC, 3.4, 3.0, Ported Gen V, ZZP Headers, ZZP CNC Heads, ZZP 78mm TB, ZZP Aluminum Valve Covers, Meziere Electric WP, ZZP Fuel Pump, ZZP Fuel Logs, 65 Mototrons, 3.29's, 2500 Stall. Tuned by GLANZERGTX and Kyle. E85 Converted, 21* Timing
    Reply With Quote  
     

  6. #6 Re: Coolant leak? 
    Donating Users kfish's Avatar
    Join Date
    Aug 2009
    Location
    Ohio
    Posts
    971
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    check the heater hoses. mine just had a pinhole leak in it the other day and was leaking right on my headers causin it to steam like a mofo.
    Reply With Quote  
     

  7. #7 Re: Coolant leak? 
    DUI BABY Bio248's Avatar
    Join Date
    Jan 2008
    Location
    MILWAUKEE
    Posts
    31,340
    Thanks (Received)
    0
    Likes (Received)
    1
    Dislikes (Received)
    0
    thermostat o-ring might also be done for, had to replace mine a couple times.
    Reply With Quote  
     

Similar Threads

  1. Coolant Leak
    By seeth001 in forum 3.1L V6 (LHO/LG8)
    Replies: 0
    Last Post: 12-28-2009, 01:16 AM
  2. Coolant Leak..help
    By piperflyer in forum 3.8L V6 Naturally Aspirated (L36)(L26)
    Replies: 0
    Last Post: 11-07-2009, 10:56 PM
  3. L36 Coolant Leak
    By JJ91284 in forum 3.8L V6 Naturally Aspirated (L36)(L26)
    Replies: 9
    Last Post: 05-14-2009, 03:41 PM
  4. Help with coolant leak
    By eagleeyes9 in forum General Tech Discussion
    Replies: 8
    Last Post: 12-09-2008, 04:45 PM
  5. Coolant leak
    By jdgaetan in forum General Tech Discussion
    Replies: 5
    Last Post: 05-31-2008, 03:24 AM
Tags for this Thread

View Tag Cloud

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