- Joined
- Jan 27, 2010
- Messages
- 65
- Reaction score
- 0
- Points
- 6
- Location
- Kingsport, TN
- Vehicle Year
- 1999
- Make / Model
- Ford
- Engine Size
- 3.0
- Transmission
- Automatic
Ok, I have a 1992 4.0 5 speed. While accelerating in higher gears, or going up hill, the engine jerks and feels like it's missing. Has a very slight rough idle, but barely noticeable. Very rarely, it does it a lower speeds too. When parked and rev it up, it runs like a champ. I've changed plugs, wires, fuel filter and IAC. I cleaned the MAF. Had exhaust leak on pass. side when flange broke, fixed it. Read that it could be DPFE or EGR valve. Found out I don't have one. Went to junk yard and some had it, some didn't, so figured it was normal. I don't have much money to just throw parts at it, but I've talked to mechanics, , friends and anyone else I can think of. No one seems to know anything. Please help!!!