Sputtering when accelerating
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.