Topic: Help please!!!

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  • Coda25’s Profile Photo
    Coda25
    #1
    Nov 19, 2008 at 7:24 pm
    I've got a 1996 grand prix se 3.1L with 150000 miles on it...
    Recently i discovered that i have oil in my radiator by looking in my overflow..
    Now i've had people tell me its me head gasket or my intake gasket or possibly even my intake all together....
    Any suggestions?

     


  • gbodydude’s Profile Photo
    gbodydude
    • Join Date: May 11, 2008 at 3:47 pm
    • Total posts: 30
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    #2
    Nov 20, 2008 at 7:37 pm
    It is very likely a blown head or intake gasket. the onlyother thing it could be is an internal leak in the tranmission cooler. I know its kind of hard to tell but is it oil or tranny fluid?

     

    Mike The g-body guy

  • beastburb’s Profile Photo
    beastburb
    #3
    Nov 21, 2008 at 8:19 am
    someone correct me if im wrong, but if it was a head or intake gasket wouldnt it also probly be smoking out the exaust, and or running rough... If its like my 97blazer the radiator also has a built in oilcooler which could be leaking also...

     


  • vair95’s Profile Photo
    vair95
    #4
    Dec 7, 2008 at 11:36 am
    easiest way to see a head gasket leak is to check your oil...if there is anti-freeze in your oil, you have a head gasket leak...Oil into the radiator sounds more like tranny cooler to me...150K out of a pontiac, consider yourself blessed, and get a new car! I would not put too much into it, as unless it has been meticulously maintained, there are probably more things looming around the corner...timing belt/chain/all rubber in the car etc...just my 2 cents though.

     

    My Corvair doesn't leak oil...It just marks its territory!

  • revhard’s Profile Photo
    revhard
    #5
    Dec 7, 2008 at 8:41 pm
    One way to tell if it's a head gasket is to do a dye presure check/ another is to pull your dip stick if it looks milky looking youve got yourself any number of problem from bad head gasket to cracked head to bad intake gasket etc...
    Like vair said for a Pontiac consider youself lucky If the car is still ingood condition it would be worth fixing, I believe in don't crush them rebuild them!
    It may take you having to go into a shop to find the real problem!
    those are just a few suggestion from an old school busted knuckle garage! scratchchin image

     

    Race The Strip not the Streets - REV HARD

  • rickyb1961’s Profile Photo
    rickyb1961
    • Join Date: Nov 30, 2008 at 8:28 am
    • Total posts: 17
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    #6
    Dec 10, 2008 at 3:15 pm
    I believe that these engines are among the G.M.s that are prone to intake manifold gasket failure. I would likely start with that. Start by doing a pressure test of the cooling system. This isn't expensive or difficult, and will likely show where the leak is. The next test to do is a compression/leak down test, to find out what the engine condition is overall. Depending on the results of these two, you can decide how much the repair is likely to cost, and whether it is worth the time, effort and cost, balanced against how much you love the car/want to keep the car.

     


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