Question about 1998 Pontiac Grand Am

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1998 Pontiac Grand Am leaks antifreeze. What is wrong and how do I fix it?

I bought it used from a lady last week. Now reality has squashed me. Bad brakes. Other things. Today the temp gauge seemed really high so I looked in the antifreeze container and saw none at all. So I went to the gas station and bought a gallon of it. I poured it in thinking it would take only part of it but all of it went in. I did spill some, and there was a little dripping underneath. So I turned the engine on and got out and **** the door. Then discovered the doors lock themselves! So i had to call some place to unlock it. So the car was running with the doors locked. I looked underneath and there was a steady trickle of antifreeze coming from somewhere. It was nighttime so I couldn't see anything. The gas station didn't have ANY flashlights! The lock guy came and opened the car and told me maybe a hose sprung a leak or something. That would be okay, I could replace a hose. I asked if he thought it might be leaking out of the engine and he said he thought it would be mixed with oil if it was coming from the engine. _That sounded like a good thing_ So I went to a grocery store to find a flashlight. NONE. Hmmm... So I went to a pharmacy because they ALWAYS have all sorts of junk flashlights for sale, right? BZZZZT! All they had was an expensive windup kind; good idea but impractical to look underneath a car! So, I bought another gallon of antifreeze to put in when this leaks out. But I asked the cashier if he ever had a car with an antifreeze leak. He said of course he had, that it was the water pump that had gone bad and it was leaking out. **gulp** I asked him if it leaked out of the pump itself or out of a hose. He looked slightly puzzled but then said it _could_ leak out a hose but his had it leak right out of the pump. **GULP**
SO.
I cannot see what is leaking or where. But a stream comes from off the metal underneath the car beneath what might be underneath where the antifreeze tank is.
What do you think is likely to be leaking and how do I fix it myself? I am as poor as you can be, I guess, so I need as cheap as I can!

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  • Gourds Oct 06, 2008

    I guess I misspelled "shut" and it turned into stars...
    The car is a 2.4 liter Twin Cam if that makes any difference...


  • kelli_431 Dec 21, 2008

    antifreeze leak and can smell antifreeze coming thru the heater and laeving a little film on the front window but heater only blows cold air. the needle goes right to the hot, danger mark when the car has been running a few minutes.

  • trouecue Jan 15, 2009

    i have the same problem,its not the heater core lines its coming from the engine area,like where the thermostat is

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I have the exact same problem with my 97 grand am gt bought the water pump and is gunna cost me $400 to put it in my brother works on cars and when i asked him about the problem he said the water pump was going out. the 94 or 95s and up changed to using dex-cool coolant so if you get your problem fixed remember to put in dex-cool or you could probably mess something up worse

Posted on Jan 05, 2010

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The problem im having is the waterpump,took a while to figure it out,doesnt look pretty either.i have to remove all kinds of ****,engine mount,timing chain cover and chain to name a few

Posted on Jan 16, 2009

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I just had the water pump fixed in my 98 pontiac. A quite expensive repair if you don't have a V6 engine. Now, if that car has a V6 engine, it will only take about an hour of work, plus the cost of the water pump as the water pump is located in a very easy spot on a V6 as opposed to the 4 cyl. However, if your like me with the good ol' 4 cyl...those are hte worst. My car had 200,000 miles on it, and I still found it better to repair than try and buy a new car (so I'm with you on being poor buddy). However, it cost me 600 dollars to fix. And that was the cheapest I was quoted. The most expensive (at Midas) was 1300$. Keep in mind, your car is old, alot has to be taken off to get to the water pump and getting a mechanic who will be gentle enough to not break **** (and then make you pay for it) will be tricky. I got very very lucky. He spent a week working the bolts that were frozen on my car so they wouldn't snap.


Posted on Jan 16, 2009

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Had a similar prob. Mine turned out to be a mix of things. First off, I have the 3.1L 6 cyl. Mine consisted of the coolant return hose that went back to the reservoir, and the intake manifold gasket. That, I've replaced twice. Not fun!!!

Posted on Jan 16, 2009

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You mentioned that the leak is under the surge tank. I have seen the hose going to the bottom of the surge tank to wear out and leak. If it seems like your leak is coming from the front part of the engine then it sounds like the water pump is in fact leaking out of the weep hole. I would check the hoses going to the surge tank first though.

Posted on Oct 06, 2008

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Man i bought the same 98 gt from an old woman ....and dorrs would lock when i closed the door running

Posted on Sep 24, 2010

  • chia_cheeks Sep 24, 2010

    i was trying to say all the same thing went wrong after i bought it from an old woman .....brakes dorrs locking and windows breaking now this leak i cant find just started poring coolant /??????but i cant c from where arg!

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