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Pontiac Forum: extrange problem by: humidity, low temperature and condensation
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Old September 12th, 2018, 09:49 AM
thundercat thundercat is offline
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extrange problem by: humidity, low temperature and condensation

It's a Pontiac Montana 2003

Since I bought the car, sometimes later a heavy rain, specially nocturnal rains, next morning the car don't reach the 1500 r.p.m. (I don't know electrical, filter/pump gas, tx ????). If just working in parking half hour or some more the hot dry and worked good. If later the rain come several hour of intense sun (I lived in Florida) the problem never appeared. I assumed they were water leaks

I moved to Georgia (the car behaved very well during the trip) and now it sleep under a shed free of direct rain/sun

Later 2 days without use and at night heavy rain with some low in temperature, no drop of water touched the car. The problem appeared again

What caused the problem?
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Old September 12th, 2018, 10:11 AM
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melsg5 melsg5 is online now
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I would check the ignition coils and connections for evidence of corrosion and test or replace the spark plug wires.
On a damp night if you have the problem open the hood and look for sparks.
1971 GTO 455 HO Ram Air
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