92 PREVIA WITH AIR BUBBLES IN COOLANT TANK

1992 Toyota Previa

Tiny

Anonymous

December, 27, 2012 AT 8:30 PM

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?

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1 Answer

Tiny

caradiodoc

December, 28, 2012 AT 6:16 AM

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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