1987 Chevy Silverado Coolant Leaking in Passenger Floorboar

JD329 · Posted at Mon May 12, 2008 10:01 am

Engine Cooling problem
1987 Chevy Silverado 6 cyl Two Wheel Drive Automatic 350000 miles
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After driving the truck about ten minutes coolant started leaking in the passenger's floorboard. What is causing this?

Advertisment · Posted at Mon May 12, 2008 10:01 am

The Factory Man · Posted at Tue May 13, 2008 8:59 am

You have a coolant leak in the heater core or the heater hose connection going to it. Usually the heater hose connection is seen as an external leak.