Antifreeze Leak?

Tiny
BSTASH13
  • MEMBER
The heater works sometimes. It will be cold then the temp gauge will go up then back down and after that the heat comes on. Unless the temp goes all the way up and dumps the coolant out of the hose
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Wednesday, July 29th, 2020 AT 10:11 AM (Merged)
Tiny
LENNY_1968
  • MEMBER
  • 2000 PONTIAC GRAND AM
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 214,000 MILES
I have a 2000 grand am se. 3.4 6 cyl. It's leaking coolent behind the pully system. Is the head gasket blown?
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Wednesday, July 29th, 2020 AT 10:11 AM (Merged)
Tiny
JACOBANDNICKOLAS
  • EXPERT
There is air in the system. Try loostening the return heater core hose, turn the heater on, and see if air or coolant comes out.
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Wednesday, July 29th, 2020 AT 10:11 AM (Merged)
Tiny
HMAC300
  • EXPERT
Some of these models had intake gasket problems. But they also had head gasket problems as well. With the mileage you have on yours I would suggest you do both.
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+1
Wednesday, July 29th, 2020 AT 10:11 AM (Merged)
Tiny
BSTASH13
  • MEMBER
Yeah. Did what you said. There is definately air in the system my only other question is what could be causing air to keep getting back in the system after its bleed.I'll bleed the system and it will run fine for one start up.I mean I can drive it 100 miles or more. Then once I shut the car off and start it again a couple hours later the heat doesn't work temp fluctuates and the temp either goes up three quarters of the way and back down to normal or goes all the way up and all of the coolant dumps out of the overflow hose onto the ground.I refill the tank after that and it runs ok for the rest of the trip. No matter how far. Then the next day I start it again. Same problem as before. Have had three mechanics look at it. Including the dealership. They all say its an air pocket. Cause head gasket test came up negative. They bleed the system drive it for five miles and say its fixed. The next day. Back to the drawing board. If its not the head gasket or any loose hoses or the radiator cap (those have all been ruled out) any ideas what else it could be that would cause continued air pockets ONLY after the car has cooled down and started again. Thanks I really appreciate your help im just at a lost when the dealership doesn't even know whats wrong probably cause they don't want to spend the time to find out. Thanks again any insight would be greatly appreciated
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Wednesday, July 29th, 2020 AT 10:11 AM (Merged)
Tiny
JACOBANDNICKOLAS
  • EXPERT
Is the overflow holding coolant? If it leaks, air could get in that way. Have you tried pressure testing the system to see if there are any leaks?
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Wednesday, July 29th, 2020 AT 10:11 AM (Merged)
Tiny
MUFFINBUNSYAY
  • MEMBER
  • 2000 PONTIAC GRAND AM
2000 Pontiac Grand Am 4 cyl Front Wheel Drive 115473 miles

Last year my water housing went causing a antifreeze leak and the car to overheat. My husband pulled the car over waited for it to cool down added antifreeze to it and drove a few miles to find a phone to call a tow truck. Since then the car has Idled very rough. It drives fine till warmed up, as well as on the highway, but like when were stopped at a stop at a light or something it idles very hard to the point where the car is shaking but once we start driving again it settles down. When I took it get inspected last year it wouldn't pass because the engine light was coming on it doesn't stay on it kinda goes on and off. When the car was connected to the machine it was coming up reading multiple engine misfires. When they took the top of the engine it was full of oil. They checked the head gasket and that was fine. They cleaned everything up put in new spark plugs, boots and sleeves. Then they had me drive the car around trying to reset the computer which didn't work. Then they tried a new ignition coil, crank sensor. Also checked everything electrical in the car. We have had 3 mechanics look at this car and they are all kinda at a loss as what to do next.
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Wednesday, July 29th, 2020 AT 10:11 AM (Merged)
Tiny
MMPRINCE4000
  • EXPERT
First thing to do is to use an electronics cleaner and clean all the electrical connectors in engine compartment.

Oil or coolant can contaminate these connectors and cause false readings.
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Wednesday, July 29th, 2020 AT 10:11 AM (Merged)
Tiny
KLINDEMA
  • MEMBER
  • 2000 PONTIAC GRAND AM
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 71,000 MILES
Car leaks orange fluid occasionally. Originally thought it was coolant, but coolant level seems fine. Heat will work for a few seconds, but doesn't stay warm. Engine temperature gauge went into the red for a split second, but then cooled down and stayed around 210ish.
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Wednesday, July 29th, 2020 AT 10:11 AM (Merged)
Tiny
RHALL77
  • MEMBER
Sounds like you do have a leak. Check and see if your water pump is leaking and check and see if your lower intake gasket is leaking. You may have to pressure test the cooling system to find the leak.
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Wednesday, July 29th, 2020 AT 10:11 AM (Merged)
Tiny
ATURPIN
  • MEMBER
  • 2000 PONTIAC GRAND AM
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 134,000 MILES
My car is leaking antifreeze. I have replaced the gasket where it was leaking. That lasted about 2 months and now it is leaking worse! Can some one give me some possibilities as to where to start looking for the leak? I am a single mom and can not just take it to the shop to find the problem.

Thanks
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Wednesday, July 29th, 2020 AT 10:11 AM (Merged)
Tiny
BLUELIGHTNIN6
  • EXPERT
Hello

Is there any visible signs of a leak such as coolant spots under vehicle after sitting or wet spots on engine near radiator hoses? If not, coolant may be leaking into the combustion chamber and being burnt. This is usually due to worn piston rings or cracked head gasket.

How is the vehicle performing? Running good, idling good? Any smoke from exhaust?

Thanks for using 2CarPros. Com!
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Wednesday, July 29th, 2020 AT 10:11 AM (Merged)
Tiny
MARKNUTTER
  • MEMBER
  • PONTIAC GRAND AM
Have a coolant leak on a 2001 pontaic grand am 2.4 see coolant leaking from first exhause manifold stud on drivers side even when not running fill over flow tank and will leak when not running. Exhaust manifold gasket? :X
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Wednesday, July 29th, 2020 AT 10:12 AM (Merged)
Tiny
SERVICE WRITER
  • EXPERT
The 3.1 motors are very common for an intake manifold gasket leak, CAREFULLY watch where it is coming from.
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Wednesday, July 29th, 2020 AT 10:12 AM (Merged)
Tiny
BMRFIXIT
  • EXPERT
WATER PUMP
GOOD LUCK
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Wednesday, July 29th, 2020 AT 10:12 AM (Merged)
Tiny
SERVICE WRITER
  • EXPERT
See why it is important to list the correct info in the beginning? Thanks for editing and adding the motor size.
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Wednesday, July 29th, 2020 AT 10:12 AM (Merged)
Tiny
EVERS
  • MEMBER
  • PONTIAC GRAND AM
MY 2000 GRAND AM IS LEAKING COOLANT BUT WE CAN'T SEE WHERE ITS COMING FROM. DOES ANYONE HAVE ANY IDEAS? IT'S LEAKING FROM THE TOP ALL OVER MY ENGINE.
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Wednesday, July 29th, 2020 AT 10:27 AM (Merged)
Tiny
98_GTP_SC
  • MEMBER
And mine gets hot and the coolent actually bubbles out of the coolants chamber on the right side.
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Wednesday, July 29th, 2020 AT 10:27 AM (Merged)
Tiny
SERVICE WRITER
  • EXPERT
I looked into my crystal ball but couldn't see the engine sizes.

How about listed them and perhaps posting a couple pics as to where you are seeing coolant for the first post.

The second post needs to start a new post as the problem is different.

Both are obviously critical and should not be driven lke this.
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Wednesday, July 29th, 2020 AT 10:27 AM (Merged)
Tiny
EVERS
  • MEMBER
Sorry for not giving more info my cars V-6, has 82,000 miles. But I took it in for a presure check and it needs a new water pump. How much that costs i'll find out tomorrow.
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Wednesday, July 29th, 2020 AT 10:27 AM (Merged)

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