Rainy Day Problem-93 Mercury Villager

On rainy days, my Villagers begins to miss, as though it is starved for fuel, or maybe air. Anybody have any ideas?

On rainy days, my Villagers begins to miss, as though it is starved for fuel, or maybe air. Anybody have any ideas?

Clean your Mass air flow sensor, take a wxter bottle and spray a mist on the spark plug wires and see if that creates a miss.

When was the last tune up??? cap, rotor, plugs and wires.

Clean your Mass air flow sensor, take a wxter bottle and spray a mist on the spark plug wires and see if that creates a miss.

When was the last tune up??? cap, rotor, plugs and wires.

Hi, I have replaced the Mass Airflow sensor, plugs and wires. I have not done the distributor cap, or rotor. I will try this next.

Thanks for the reply.
Edward L

You may want to also check the wires to the injectors to make sure they are tight and possibly add some di-electrical grease to them to see if that helps.

Does the gas mileage seem to change when raining.

When you replaced plug wires did you apply di-elctricall grease to both ends of wires to prevent moisture from causing problems??

Try the water spraying trick to help diagnose.

On rainy days, my Villagers begins to miss, as though it is starved for fuel, or maybe air. Anybody have any ideas?
I have a '97 and a '95 villager and both are very fussy about the distributor cap. Once the cap was replaced the wet day missing stopped. After close examination in sunlight I found a tiny carbon trail inside the cap causing the missfire.

Hey Thanks. This is something I'll try shortly.