Heating AC and Engine Cooling
Radiators
Transmission Fluid
Chevy S-10

Why would fluid be leaking from the cooling system overflow and steam be coming from the vents?

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2007-02-08 01:08:31
2007-02-08 01:08:31

Keep in mind that I am only a "shade tree" mechanic, but I do have some experience with this very problem...Take the radiator cap off and look in the filler neck with the engine running. BE CAREFUL!!! If you see bubbles sniff around the filler neck and see if it smells like exhaust gases...like burnt gas. If this is the case, the head gasket or the head itself is the culprit. Exhaust gases will blow passed the gasket/crack in the head and pressurize the cooling system. This pressure probably found a weak spot in the heater core and that would explain the steam. There may be other explanations but this is what happened to me today. When I identified the smell of exhaust gases coming from the radiator,it was evident that the problem was with the gasket/head.

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