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Overheating engine

Tiny
IONACAMERON
  • MEMBER
  • 1988 VAUXHALL ASTRA
I have an R reg Vauxhall astra which is over heating. We have removed the thermostat, the fan is working but the engine overheats really quickly. The water comes out the top of the bottle and often turns to steam. Would this just be an airlock or something more serious
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Sunday, May 29th, 2011 AT 9:46 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,755 POSTS
First, the t-stat should be replaced. If cooolant travels too fast, it doesn't have time to cool down. Next, with the engine cold and the engine off, remove the rad cap. Start the engine. If coolant comes shooting out, you have a bad headgasket.
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Monday, August 29th, 2011 AT 4:44 AM

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