Antifreeze Leak?

Tiny
SERVICE WRITER
  • EXPERT
Glad to hear the problem is solved. Except the financial side :wink:
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Wednesday, July 29th, 2020 AT 10:27 AM (Merged)
Tiny
SAM803
  • MEMBER
  • PONTIAC GRAND AM
I have a 2000 Grand Am and I am leaking coolant on the right side just in front of the big hose coming from the radiator. I have been told that this is a major repair job. I do not intend to keep the car that long that I will invest a lot of money. What can I do to stop the leak so it will run for a couple more months. When I fill it full of water or coolant, it runs great. After it heats up, the needle will quickly go to the right side to hot. A mechanic told me to pur some stop leak into the overflow tank and that would help. Is that right.
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Wednesday, July 29th, 2020 AT 10:27 AM (Merged)
Tiny
MERLIN2021
  • EXPERT
What leaks, the radiator, or the thermostat housing? Thermostat housing is cheap, radiator about 200.00.
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Wednesday, July 29th, 2020 AT 10:27 AM (Merged)
Tiny
MERLIN2021
  • EXPERT
If it's just the thermostat housing, remove the hosing, and make sure the themostat isnt stuck under it, there is a groove the t-stat sits in some are on the block, others are in the housing, when you tighten it, just snug + a little! It's easy to crack these!
Get a new t-stat while youre at it. Hope this answers your PM! And scrape ALL the old gasket and replace with a new one.
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Wednesday, July 29th, 2020 AT 10:27 AM (Merged)
Tiny
TRACIEHARTLEY02
  • MEMBER
  • 2000 PONTIAC GRAND AM
  • 2.4L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 161,334 MILES
Low coolant like came on. So I waited until the car cooled down and put half and half the light went off. Then I noticed antifreeze leaking under my car. My car never overheated or got to hot. My coolant light would go off and on. My question is, could it be my lower hose went bad since the leak is coming from under my car?
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Wednesday, July 29th, 2020 AT 10:27 AM (Merged)
Tiny
DANNY L
  • EXPERT
Hello, I'm Danny.

The best thing to do is use a cooling system pressure tester. If you don't have one most local auto parts stores have a tool loaner program and can rent you one.Basically it fits onto the radiator cap outlet and you pressurize the system.This allows you to view where the leak is coming from with the engine not running also not heated to avoid burns while looking for the leak.Here is a tutorial showing what is involved:

https://www.2carpros.com/articles/radiator-pressure-test

Hope this helps and thanks for using 2CarPros.
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Wednesday, July 29th, 2020 AT 10:27 AM (Merged)

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