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97 formula firebird 5.7 LT! when rains or wash vehicle engine runs really rough will die if ya dont keep idle up til it somewhat dries out, engine lite comes on. had new plugs n wires put on the car by someone who does know what he is doing. that isnt the problem. so not sure what is getting wet and causin problem. also have problem with windows has to be warm out but not hot or cold and they work. alarm will go off when it rains. car has been well taken car of very low mileage for the year. runs awesome so cant complain except these 3 problems


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Well, you definitely answered your own question here. The problem acts up when the car gets wet. So, what you're going to have to do is start methodically spraying down areas of the car so you pinpoint the area that is causing the problem. After that, you'll then have to find whatever wiring, component, or module is actually messing up. It could be something like the PCM getting wet, as it's located right under the windshield area on the passenger side of the engine compartment.

This should be a fairly simple problem to find since you can make it act up by adding water.
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In the automotive industry for 20+


   
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thank u for answer, have one question on the coil packs is there suppose to be a cover ?


   
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No, there is not a cover for the coil packs. Some vehicles have a plastic engine cover, but yours does not.
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In the automotive industry for 20+


   
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