Ranger4x4.0
Member
- Joined
- Aug 24, 2015
- Messages
- 215
- Reaction score
- 3
- Points
- 18
- Location
- Poplar Bluff, Mo
- Vehicle Year
- 1998
- Make / Model
- Ford
- Engine Type
- 4.0 V6
- Engine Size
- 4.0 OHV
- Transmission
- Manual
- 2WD / 4WD
- 4WD
- My credo
- God is great, beer is good, and rangers are awesome!
I have a '98 4.0. It surges up and down rapidly, idles very high at 1500 and even 2000 rpms, or just barely running like its coughing at very low rpms and sometimes dies. I think it has something to do with the egr valve, the thing with a round top and a vacuum hose coming out from the top. I sprayed it with starting fluid and the engine surged a little, and is consistent every time I sprayed it. It was always around the gasket on the back of the valve. I changed out the gasket, and went to start it up, and there has been no change. I sprayed it again after replacing the gasket and it still surges. The old gasket was like peanut brittle and thin. I dont know what it could be.
Also, when I changed the gasket, I couldn't for the life of me get the exhaust pipe bolt loose even after sitting in penetrating oil for a day and a half. The 1 1/16 wrench felt too big and kept slipping off as well. So I just took the two 10mm bolts out and pulled the valve back with the pipe connected. I scrubbed where the gasket meets the metal as best as I could and put the gasket on that way. The bolts are as tight as I feel safe without stripping them, and I'm positive it's not a bad gasket.
This is the best example I can find on what its doing: https://youtu.be/0rR30KlLl0s
Sent from my SM-G960U using Tapatalk
Also, when I changed the gasket, I couldn't for the life of me get the exhaust pipe bolt loose even after sitting in penetrating oil for a day and a half. The 1 1/16 wrench felt too big and kept slipping off as well. So I just took the two 10mm bolts out and pulled the valve back with the pipe connected. I scrubbed where the gasket meets the metal as best as I could and put the gasket on that way. The bolts are as tight as I feel safe without stripping them, and I'm positive it's not a bad gasket.
This is the best example I can find on what its doing: https://youtu.be/0rR30KlLl0s
Sent from my SM-G960U using Tapatalk