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1998 Oldsmobile Aurora Cooloing system

Tiny
BIGBOYTOYS57
  • MEMBER
  • 1998 OLDSMOBILE AURORA
  • V8
  • FWD
  • AUTOMATIC
  • 107,000 MILES
I have a problem with the cooling system. It was shooting coolant out of the reservoir cap. I replaced the water pump, thermostat, reservoir tank and cap. Problem still persists. It does not overheat, what it does, is shoot coolant out of the tank. I have it running for an hour just idleling with no problem, as soon as I put it into drive and drive it about a mile it will blow the coolant out of the tank/cap. I have tried 3 differnt caps one of them GM and still same result. Never overheats gage remains at about 225 degrees. Please Help.
Thanks
Gino
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Wednesday, January 23rd, 2008 AT 7:24 AM

1 Reply

Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
Check the lower radiator hose, it may be collapsed. Check the cooling fans for proper operation. Turn the A/C on the fan should run as soon as it's turned on. If all is good, the waterpump my have a few bad impeller blades. Corroded right off! The other thing is altho you don't think it's an overheat, when it blows out like that, it is! Check for a bad head gasket as well, you can get a kit for 50.00, called a block test, it will show any exhust vapor in the coolant.
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Wednesday, January 23rd, 2008 AT 8:29 AM

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