Question about 1997 Honda CR-V

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Steam from under hood at idle.

1997 CR-V as of today has steam come out of hood at idle; stoplights & such. I thought it could be condensation as it has been raining heavily for about 4 days. I heard it may be coolant levels. Any ideas?

This may be completely irrelevant to my problem, but just yesterday, I lost my gas cap and drove approximately 10 miles before noticing it was gone. I drove to delarer immedialtey & bought a new one. Would this have anything to do with it?

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My '97 CR-V would get hot enough at idle to evaporate rainwater on the hood, but I've never had steam come out from under the hood that wasn't one of these few solutions:

1. Coolant system leak in which the coolant is somehow being leaked or displaced onto a very hot engine component such as the exhaust manifold.

2. EGR (Exhaust Gas Recirculation) system failure in which fumes (and thus 'steam' or 'steam-like' discharge) are being introduced under the hood.

3. Exhaust leak near the engine.

4. Some (all?) vehicles cycle the A/C compressor whilst the selctor is in the DEFROST position. Is it possible that some condesate from the evaporator is spilling onto hot underhood engine parts?

5. Failure of supply hose to windwhield washer jets, usually caused by alcohol drying out the hose. Then, the washer fluid leaks on the hot engine, causing steam.

Check closely under there, I bet you find the problem.

Posted on Feb 27, 2009

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