1992 Pontiac Transport coolent leak

1992 PONTIAC TRANSPORT
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MJRYDECKI@VERIZON.NET
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1992 Pontiac Transport 6 cyl Automatic 125000 miles

Loosing coolent, thought it was the waterpump. replaced it. still leaking near there down under. What else could it possibly be?
Mar 11, 2009 at 3:50 PM
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SOPERM1
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If this is a 3100 or 3400, then it is probably a defective intake gasket. GM went cheap and used a plastic encased gasket that fails often. U can usually see a small stream or remnants of coolant behind the power streering pump nest to the intake manifold/uppr plenum. Otherwise, check the coolant bypass tube behind the waterpump, they like to rust and fail also.
Mar 15, 2009 at 12:40 PM