Wet Weather Miss - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars

Avalanchediver · 03-10-2009, 07:05

My wifes 2001 Escape v6 runs great until the engine gets wet. I have changed the coil packs, boots and plugs. No change. What would you guys recommend next?

Thanks,

Eric

**360ci** · 03-10-2009, 14:46

Are you sure the engine itself is getting wet? Does it happen during and after driving in the rain? Does the problem occur when you start the vehicle or as the weather goes from sunny skies to rain/snow, does the engine seem to bog down as you drive?

Once we get more details (please add anything else you can think of) myself and others can better help diagnose your problem :)

Avalanchediver · 03-10-2009, 19:16

The miss first happened after I power washed the engine compartment. After a warm up, I let it sit and dry out and it was fine. Then is started happening when warmer moist morning air would cause condensation on the car and in the engine compartment. At this point it is a problem when it rains even if the engine is hot. There is no doubt it is dropping acylinder or two when it misses. It has to be electronic. Either there is no spark getting to the plug, or the injector quits firing fuel into the cylinder. When it misses it is consistant. Soulnd like the same cylinder continuously misses. Either way it must be an electrical problem because it is only an issue in damp or wet weather.

Any help will be appreciated,

Thanks,

Eric

puppydrum · 03-27-2009, 16:48

I'm having the same issue, 3rd time now. After 2+ days of rain the car misfires. 1st time the problem disappeared on its own. 2nd time the problem seemed much worse. I changed all plugs, plug insulators, 3 rear coil packs under intake manifold (all I could find in my area), fuel filter and bought an ODBII diagnostic tool. Saw signs of moisture around plug insulators in #'s 2 & 3. Put back together but still had a #6 misfire (new plug and coil pack). Swapped with #3 and problem became #3 misfire. Swapped with #2; the problem seemed resolved ONLY AFTER blow-drying all wires, connectors, etc., as I believe the problem is moisture related after seeing trace water in PCM connection. Drove w/o issue for a few days, then the current 3 day plus rain. Drove 1st rainy day no problem, but now I have #3 misfire again. I'm ready to shoot it...