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1999 Pontiac Grand Am WATER COMING OUT OVER FLOW

Tiny
NIKKISPARKS
  • MEMBER
  • 1999 PONTIAC GRAND AM
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 120,000 MILES
WE JUST GOT IT WE WERE DRIVING AND HEARD A LOUD THUMPING THE WATER RESEVOIR WAS SWOLLEN AND JUMPIN ALLL WATER WAS GONE WE REPLACED WATER PUMP ABD RADIATOR BUT STILL WHEN IT RUNNING THE WATER POURS OUT THE OVER FLOW WHAT WRONG DO YOU THINK
Friday, January 2nd, 2009 AT 7:40 PM

18 Replies

Tiny
BUDDYCRAIGG
  • MECHANIC
  • 2,262 POSTS
Over heating or a blown head gasket.
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Friday, January 2nd, 2009 AT 7:58 PM
Tiny
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ISNT A BLOWN HEAD GASKET EXPESIVE BUT IT DOESNT OVER HEAT
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Friday, January 2nd, 2009 AT 10:04 PM
Tiny
BUDDYCRAIGG
  • MECHANIC
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Repairing a blown head gasket can be expensive.

But let's try to figure out what is going on.

If the head gasket is really bad, (as compared to a small leak) the pressures in the combustion chamber will immediately start to over pressurize the coolant system.

If it's happening because it's over heating, (say because the thermostat isn't opening) it would take a few minutes

and you can't completely trust your temp gauge or warning light when it comes to a situation like this.
If there is air in the system (or steam ) the temp sensor isn't effected much because air and steam don't transfer heat as well as water does.
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Friday, January 2nd, 2009 AT 10:21 PM
Tiny
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THANKS YOUR HELPFUL THE THERMOSTAT WILL BE FIXED TOMMORROW BUT WE DROVE THE CAR A FEW TIMES IT DIDNT DO IT BUT WE ONLY WENT LIKE 5 MILES TOO BUT A SHOP TOLD US THE INTAKE MANIFOLDS WERE LEAKING OIL AND COOLANT BUT COME TO FIND OUT THIS SHOP IS CROOKED AS CAN BE BUT I WILL LET YOU TOMMORROW IF IT WORKS BUT I AM FROM FRANKLIN COUNTY MISSOURI KNOW ANY GOOD SHOPS
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Friday, January 2nd, 2009 AT 10:29 PM
Tiny
BUDDYCRAIGG
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It's a small world.
I'm in Kansas City MO.

The shop may not be wrong about the intake manifold leaking.
The 60degree V6 Chevy engine, (2.8, 3.1, and 3.4) are known for having a problem with the intake gasket.
GM has come out with an updated gasket kit to help solve the issue.

But normally the leaking gasket would not cause the problems you are having
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Friday, January 2nd, 2009 AT 10:35 PM
Tiny
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OK WELL I AM CLUELESS I JUST NEED MY CAR RUNNIN I START NURSING SCHOOL IN 2 WEEKS AND I AM BROKE SO HOPE FULLY ITS A LITTLE PROBLEM CUZ I ALSO HAVE A JEEP THAT STALLS WHILE DRIVING THANK YOU SO MUCH FOR YOUR TIME
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Friday, January 2nd, 2009 AT 10:49 PM
Tiny
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Ok so we got thermostat installed but the guy who was fixing it well when he was tighting the lower bolt on the housing the hole it screws into which is the one on the motor part broke so he used jb weld to hold the housing on what do you think he said not to drive for 24 hours
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Saturday, January 3rd, 2009 AT 4:12 PM
Tiny
BUDDYCRAIGG
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I cant speculate if it will work or not.

While I do think JB Weld is an excellent product, it is not a magical potion that can fix everything.

Good luck
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Saturday, January 3rd, 2009 AT 4:21 PM
Tiny
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If not whats my other option to fix it? This my last question thanks for you help
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Saturday, January 3rd, 2009 AT 5:13 PM
Tiny
BUDDYCRAIGG
  • MECHANIC
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I would have to see how it is broken.
If the threads are just stripped out, a heli-coil would most likely work.

If part of the casting broke away because the bolt was hydrolocking in the hole with gasket maker in it. That's something that would just have to be looked at in person.

And you can ask as many questions as you want.
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Saturday, January 3rd, 2009 AT 5:43 PM
Tiny
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Wow your helpful I wished u lived closer you seem like a good mechanic but its the casting I guess instead of a whole circle its half of one
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Saturday, January 3rd, 2009 AT 7:17 PM
Tiny
BUDDYCRAIGG
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Thank you for the kind words,

that's not a good thing.

It may be possible for the hole to be drilled deeper.
Then threads cut in the hole with a tap.
And a longer bolt be used in it's place.

But someone with experience should probably look at it to determine if that is possible
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Saturday, January 3rd, 2009 AT 7:43 PM
Tiny
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Great well thanks for your help I am just gonna give up on it I cant fork out what shops want
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Saturday, January 3rd, 2009 AT 8:10 PM
Tiny
BUDDYCRAIGG
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Dont give up.
Wait until tomorrow and see if it leaks.

(i'm the only one that gets to be a pessimist around here)
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Saturday, January 3rd, 2009 AT 8:43 PM
Tiny
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Ok another question we had a shop tell us a while ago that our intake manifold were leaking oil and coolant what problems will that cause and how neccassary is it to fix
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Sunday, January 4th, 2009 AT 12:41 PM
Tiny
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It depends on how bad the leak is.

Worst case, is it would leak water into the engine oil and the bearings would be destroyed pretty quickly.
You probably wouldn't still be driving it if that was the case.

Most commonly, a little bit of water is sucked into an intake runner and is vaporized and sent out the exhaust.
You would probably be noticing white smoke.

Either one could cause the engine to over heat
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Sunday, January 4th, 2009 AT 1:41 PM
Tiny
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Ok well step dad said the oil looks kinda nasty like it has water in it I dot know this stresses me out what if it mixed with oil what repairs should be done
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Sunday, January 4th, 2009 AT 1:44 PM
Tiny
BUDDYCRAIGG
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Does the oil looks like a chocolate milk shake?

If yes, then you need to stop driving the car until the intake gasket is fixed.

Then change the oil a couple of times in a row to get the water out.

And hope no engine damage has already happened.
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Sunday, January 4th, 2009 AT 1:48 PM

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