Question about 2002 Ford F150 Regular Cab

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2002 f150 with 4.2 ,runs rough after rain

After it rains,the truck runs rough

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Very common problem with your year model is missing inner fender not sure why but if one is missing good chance when it rains u are soaking the coil causeing it to arch and miss fire or arching at connection at the plugs and wires if ur missing a inner fender dont waste ur time replaceing plugs, wires, or coil tell u have replaced the inner fender

Posted on Mar 01, 2013

  • catfishingte
    catfishingte Mar 01, 2013

    very common problem with your year model is missing inner fender not sure why but if one is missing good chance when it rains u are soaking the coil causeing it to arch and miss fire or arching at connection at the plugs and wires if ur missing a inner fender dont waste ur time replaceing plugs, wires, or coil tell u have replaced the inner fender

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Posted on Jan 02, 2017

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SOURCE: 1992 ford aerostar van wont start after it rains

I just had this exact problem. Wouldn't start or took 15 trys to start, but then ran smoothly. Sometimes a little rough starting on dry days, but pretty much hard starting after rain. I was thinking water in my tank/bad gas, but shooting some starter fluid in my intake didn't give me the initial blast at start up... that certainly indicated that it was electrical...
...but the next day the vehicle stalled in the middle lane of a three lane street, wouldn't restart. After pushing it to the curb, I got to the point where I was checking the wire from the coil to the distributor cap. Two thirds of the wire lifted right out. This wire was in 2 pieces! Amazing that it had been running at all, with this one wire burned down to a whisper, before it broke completely. There were signs of heat/elec damage to the wire also at a point an inch away on this wire.
Replacing the wires is absolutely the first thing to try. It's cheap and easy to do, and it should be done (or the wires inspected/tested) routinely anyway. The coil-to-distributor coil gets more engine heat and more use than any of the indiv spark plug wires and hence wears much faster.
I am betting this wire is much more likely your problem than a coil failure. Good Luck!

Posted on Mar 08, 2009

chrischronic
  • 235 Answers

SOURCE: 03 windstar rough idle working bad,worse in the rain

ford has a technical service bullitin out on this vehicle for the intake gaskets leaking causing a vacum leak that set codes 171 174. the solution is to have the intake manifold gaskets replaced . call your local ford dealer and see what thay can tell you about this bullitin.

Posted on May 07, 2009

  • 14036 Answers

SOURCE: i have a problem with Ford Escape stalling or

LEAKING BAD SPARK WIRES OR YOUR COIL PACK GETTING DAMP.IF YOU HAVE 3.0L ENGINE. COIL PACK ON BACK OF ENGINE.IF YOUR LOWER COWL SEAL IS MISSING WATER CAN RUN DOWN THE COWL WHERE SEAL SUPPOSE TO BE CAUSING WATER TO RUN BACK OF ENGINE DAMPING YOUR COIL AND WIRES.BAD PLUG WIRES WILL CAUSE PROBLEM WHEN IT RAINS.

Posted on Jan 24, 2010

  • 5 Answers

SOURCE: In the morning when damp or raining car starts but

change the plugs and plug wires, its amazing how much those little things effect how ur car runs, be sure to put no more than 20 lbs of tourque on the plugs and cover the threads with anti ceasing gel, and replace the wires one at a time to make sure they dont get messed up, u may need two people to do this

Posted on Apr 16, 2010

geo5734036
  • 528 Answers

SOURCE: i have 98 windstar 3.8 when it rains it runs rough

Check your distributor cap - I'm pretty sure you have a hairline crack which would allow minute amounts of water in, fowl out your distributor and then clear out once it evaporates. You may or may not be able to see the crack.Change Distributor cap and rotor if it's been over a year since you last changed them.

Posted on Nov 12, 2010

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