misfires
New User
Joined: Mar 2011
Posts: 3
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I had this problem at my shop,check the wiring to the pcm passenger side of engine bay down behind battery mice or ground squrriels chewed wires into for 2 cylinders causing misfire.happy hunting,take battery out makes repairing wires easier....
New User
Joined: Aug 2011
Posts: 2
Likes: 0
Need help asap
i have 2003 ford f-150.. washed it the other day and decided to wash the motor.. now i have engine light on and it is misfiring.. its been 2 days since the wash.. thought maybe i got it wet but it should be dried out by now.. can i disconnect positive cable on battery to clear the issue?
Lead Driver
Joined: Sep 2006
Posts: 7,907
Likes: 143
Take all the coils out and blow dry all the plug wells.
You got as lot of water in.
Since there is sort of a seal around the coil boots to the head it won't dry to fast.
Goes in cold liquid and turns to steam when the motor runs and hangs around a long time because there is no circulation to any degree.
Watch for possible coil/ boot failure in the future if the seals on any coils have openerd up..
Good luck.
You got as lot of water in.
Since there is sort of a seal around the coil boots to the head it won't dry to fast.
Goes in cold liquid and turns to steam when the motor runs and hangs around a long time because there is no circulation to any degree.
Watch for possible coil/ boot failure in the future if the seals on any coils have openerd up..
Good luck.
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