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Continually Overheating

Tiny
BETTI RICE
  • MEMBER
  • 2001 OLDSMOBILE SILHOUETTE
  • 6 CYL
  • AUTOMATIC
  • 195,000 MILES
Vehicle is continually overheating. Thermostat, radiator, temperature sensor, radiator cap all replaced and it has been flushed twice. No signs of oil in water. There had been a transmission oil leak in the cooler that had leaked into the radiator. We have replaced all the above and it still overheats. Water is continually being forced into the overflow basin. I am about ready to set fire to the thing. Help?
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Sunday, February 26th, 2017 AT 8:30 PM

1 Reply

Tiny
CARADIODOC
  • MECHANIC
  • 33,727 POSTS
What you are describing is typical of a leaking cylinder head gasket. Your mechanic can perform a quick chemical test at the radiator to verify that. That involves drawing air from the radiator, while the engine is running, through a glass cylinder with two chambers partially-filled with a special dark blue liquid. If combustion gases are present, the liquid will turn bright yellow.
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Sunday, February 26th, 2017 AT 11:20 PM

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