My 2002 F150 will sputter, shudder, lurch, skip, jump (whatever you want to call it) when I am accelerating in any gear. Mostly at low RPMs. This does not happen at all when I am cruising or idle. I have replaced the fuel filter, air filter, spark plugs and have attempted to clean the EGR valve. It is spitting out a "insufficient flow" code from the CEL (Check Engine Light). The reason I say I "attempted" to clean the valve is because I really didn't know what I was doing, I've never removed one of those valves, but I think I got in there and cleaned it good. It didn't really look real dirty in the first place. Well, now I have purchased a Motorcraft EGR valve and am ready to put it in. Here's my question, my truck mostly sputters when the weather is warm and/or the truck is warmed up. If it's below 60 degrees it doesn't sputter as much and sometimes not at all until the truck warms up. Is that weird? Just looking for some more ideas on getting rid of this sputtering.
Last edited by kentwindham; 02-16-2008 at 11:28 AM.
Yes, thats a good point too, check those rubber hoses for checking and/or deterioration. The ports I am reffering to are behind the EGR valve itself, if you unbolt it from the intake elbow (behind the what the butterfly valve is bolted to) the ports run in there and are usually clogged like arteries with carbon/crud.
I would check the Direct Coil's. I own an 02 4x4, 8 cyl. I just got done replacing the 3rd one in it. The dealership told me that they (DC's) were not the best in the world when the trucks were build. It will make your truck do crazy things. Mine would be fine until I got it moving down the road. As it turned out, the coil was just starting to go out. It took each of them about 1-2 months before they died. Then the code came on quickly, and that was it. Just an idea. Good Luck.
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