92 Previa with air bubbles in coolant tank

Tiny
ANONYMOUS
  • 1992 TOYOTA PREVIA
  • 200 MILES

92 previa with air bubbles in coolant tank. Does not overheat. Does not lose noticeable amount of fluid. Could this be anything but the head?

Thursday, December 27th, 2012 AT 8:30 PM

1 Reply

Tiny
CARADIODOC
  • EXPERT
  • 26,041 POSTS

More likely is a leaking head gasket. Lets not hope for the worst yet. Your mechanic can do a "sniffer" test at the radiator to verify you're seeing combustion gases. He will draw air through a glass cylinder with two chambers partially-filled with a special dark blue liquid. If combustion gases are there, the liquid will turn bright yellow. He can also perform a cylinder leakage test. That will verify the leak and identify which cylinder is leaking.

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Friday, December 28th, 2012 AT 6:16 AM

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