lowsinthe20s
Member
- Joined
- Mar 19, 2023
- Messages
- 35
- Reaction score
- 9
- Points
- 8
- Location
- FL
- Vehicle Year
- 1989
- Make / Model
- Ford
- Transmission
- Manual
Just rebuilt a 4.0 for my B2. Just got the radiator hooked up and started to let it run for a bit. I have something weird going on with the idle. Starts up and revs to about 2500rpm then calms down to about 1300rpm, but if I hit the gas a little say up to 2000rpm it stays at 2000 and doesn't come back down. The throttle is not stuck. It just seem to want to run there.
I believe the idle are control is good. I can unplug it and the truck shuts off. Cleaned the TPS and the MAF and didn't seem to change anything. Vacuum lines all seem to be good. This is a EGR truck so it has all that crap as well.
The only vacuum line I'm not sure of is the one on the throttle body. Where does it need to plug into? Right now it is plugged. Even unplugged it runs the same way.
Thanks for the input.
I believe the idle are control is good. I can unplug it and the truck shuts off. Cleaned the TPS and the MAF and didn't seem to change anything. Vacuum lines all seem to be good. This is a EGR truck so it has all that crap as well.
The only vacuum line I'm not sure of is the one on the throttle body. Where does it need to plug into? Right now it is plugged. Even unplugged it runs the same way.
Thanks for the input.