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Coolant is blowing back out top of the overflow tank

Tiny
HHDRGNFLY
  • MEMBER
  • 1990 FORD RANGER
  • 200,000 MILES
The heat went out on my 1990 Ford Ranger yesterday & now the coolant is blowing out the overflow tank, the engine is running hot & I've got white smoke billowing out the tailpipe. Any ideas? I've recently had the radiator, water pump & all hoses replaced.
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Tuesday, October 4th, 2011 AT 4:27 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
It sounds like a bad headgasket. If compressed air from the engine gets into the cooling system, it will blow the coolant out. With the engine cold, remove the radiator cap and start the engine. If coolant rushes out, you have a bad head gasket. Also, the white smoke from the exhaust indicates you are burning coolant.
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Tuesday, October 4th, 2011 AT 4:30 PM

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