Surge at idle

[renegadedooer]

My truck has been surging since i got it a few months ago. Only did it rarely at first, but now it idles up and down all the time. I unplugged the ICP sensor while it was surging and it smoothed out. Perfectly smooth. I noticed a super lite coating of oil on the plug. Just replace the sensor right?

[04Powerstroke_John]

alot of times it is as simple are the wiring harness going bad. when surging condition occurs move harness wires around and see if surging stops. if it continues i would replace sensor, if it stops they sell replacement harnesses. I have a brand new icp sensor i would sell to you for 80.00 shipped.It is for 2004-2007 6.0s with production date from 7/19/2004 thru 12/18/06.

john

[renegadedooer]

Jiggled the harness and it didnt help. I think the sensor actually leaks. I am gonna go to the dealer tomorrow

[04Powerstroke_John]

i wll ship the brand new sensor i have to your door much cheaper then the dealer will charge you

[jay diesel]

my truck was doing the same thing, brought it to the dealer and it found out it was caused by the cheap oil filter that I had used the last time I changed my oil. They put in a motorcraft oil filter and it was good to go. since then I am alot more caustious about what I put on my truck. Definately worth checking if you don't know what type of filter is in there.

[renegadedooer]

napa filter is on there. I bought a motorcraft filter got it apart and realized what was up. I was in a bind and got another NAPA filter. I need a ford lid to go with the ford filter.