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2003 Pontiac Grand Am car leaks antifreeze

Tiny
IRRHOPLACEABLE
  • MEMBER
  • 2003 PONTIAC GRAND AM
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 116,600 MILES
2003 Pontiac Grand Am is leaking antifreeze, plus temp gauge is going past 200. Took it to dealer, the only thing they saw was wrong was reservoir cap needed to be replaced and a bypass hose was leaking. Had all of that replaced, plus did a coolant flush, but still seeing a slight antifreeze leak. What do you think it is?
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Thursday, October 1st, 2009 AT 8:32 PM

5 Replies

Tiny
MMPRINCE4000
  • MECHANIC
  • 8,548 POSTS
Did they perform a cooling system pressure test? This will isolate leak.
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Wednesday, July 29th, 2020 AT 10:08 AM
Tiny
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Did they perform a cooling system pressure test? This will isolate leak.

They performed a cooling system pressure test. Each time that was done, they could find nothing wrong. Sorry to get back to you so late. The message was in the spam box.
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Wednesday, July 29th, 2020 AT 10:08 AM
Tiny
MMPRINCE4000
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Well it probably a hose leaking, or a leak at the thermostat housing. I am suprised a pressure test did not reveal anything.

You may have to get car to operating temp. And use inspection mirror to look at every hose and connection.
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Wednesday, July 29th, 2020 AT 10:08 AM
Tiny
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Ok. Will they do that at the dealership?
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Wednesday, July 29th, 2020 AT 10:08 AM
Tiny
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Yes, but remember they charge by the hour, usually $85-125 and up.
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Wednesday, July 29th, 2020 AT 10:08 AM

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