Engine runs rough wet it rains - Ford Forums

N.E.T. · 09-28-2003, 07:35

I have a 98EB that runs rough when it rains. Seems like something in the engine is getting wet. Does anyone have any suggestions as to where the problem may be.

351w · 09-28-2003, 14:55

nope none here my truck does the same thing and has done it for about 10 yrs.
real pain in the arse i will say cause it wants to stall all the time if you dont keep your foot on the pedal slightly.

N.E.T. · 09-29-2003, 17:46

I cant believe i'm gonna have to live with that problem. I sure there has to be a solution. Maybe the plugs getting wet.
Thanks anyways.

89F150 · 09-29-2003, 19:45

maybe also check if the distributor is getting wet. It would have to be something electrical.

351w · 09-29-2003, 20:16

well a couple easy thing to do are to get some die-electric grease and coat the inside of all the spark plug boots and dist ends and also check to see if there is any rusty particles inside the dist cap if so clean real good and relube with die grease. i am guessing that while the engine is warming it starts to draw moisture and then your spark is jumping through this moisture.
another thing to try is replace the wires totally if they are original wires.

89F150 · 09-30-2003, 01:47

What wires are you running 351, anything performance wise?

351w · 09-30-2003, 17:29

of course,
i think they are tayler wires because i never got around to buyin a set of MSD wires.
but anywho they are 8mm high temp silicone jacketed pro stock wires. i have and MSD rotor and cap on the dist and had an MSD ignition also but something happened to it and i had to unhook it.

N.E.T. · 10-14-2003, 19:21

I believe they are the oroginal wires, so i'm gonna replace them.
Someone told me that after a while, the wire tend to wear out.

89F150 · 10-14-2003, 20:52

I've also heard of when changing wires to change O2 sensors at the same time. They wear away as well.

351w · 10-14-2003, 21:13

yea plug wires do detereorate over time and then start to loose spark quality due to loss in the wire or sparks jumping to one another or the block.