Rain and my check engine light

Your coil is possibly gone. I had the same problem, after replaceing the plugs and wires everything remained the same. There was a small chack in the bottom of the coil. Somewhat easy to replace.

Go to town hall on Edmunds.com and look up 2004 Ford Freestar engine problems and be amazed.

this van has a factory defect. the pcm gets wet. highway safety is investigating this for a possible recall. there is a lot of info on how to fix this on the internet.

04-07 FREESTARS HAVE A TSB # 05-23-7 WATER LEAKS ON THE PCM CAUSING DIVABILITY PROBLEMS IF YOU HAVE MORE THAN ONE CODE YOU SHOULD CHECK THIS FIRST

had the same problem. my coil pack was cracked

my 2004 freestar does the same thing, except my check engine light stays on all the time, and flashes when it is raining. The van jerks the entire time that there is any moisture but drives normal when it is dry. We had a crack in the coil paks too and fixed that and it lasted 1 week before messing up again. Once in awhile it stalls out on me or even back fires on occassion. It seems from the research I have down alot of these vans have this problem there was an investigation thru NHTSA but from what I found it was closed with out anything being done or any other owners being notified. I am filing another complaint to try to get this reopened and hope everyone else will to. Ford needs to stand behind their product and fix it.

Had the same problem when it rained, replaced the coil and wires. Now the van is running great. Check engine light is out now, all is okay.

Remove the pcm from under the dash , unplug it and dry it out with a hair dryer on low temp, and then leave it in the hot sun 6 to 8 hours , also blow dry the plug connector ,wrap it in plastic bags and secure it near the fire wall on the passenger side , do not put it back under the dash and that problem will be solved , it cost me no money to fix this.

change the coil and wires, I had the same problem, now it runs great.

I have same plm as you have. I took this to shop and replacement new wire plug and new plug and it still same. they keep charge me for 300 dollars. when I done paid it and left. the engine came on and took it to auto zone for the check up. they said plug is split up so now took that back to store. they said need replacment new drive shaft and steer rack pinion anyone please help. they going charge for 850 dollars. please help thanks