Sicktight722
New Member
- Joined
- Aug 28, 2007
- Messages
- 66
- Reaction score
- 0
- Points
- 0
- Location
- Columbia & Effingham SC
- Vehicle Year
- 1990
- Make / Model
- Ford
- Engine Size
- 2.9L
- Transmission
- Manual
hey. I have a 1990 bronco II 4x4 with the 2.9L and a 5spd. The idle seems a little high, but it could also be the rpm gauge. My main concern is when I am driving, when I press the clutch to shift gears or when I put it in neutral to come to a stop the engine revs really high. Most of the time its 1000 rpm higher than when I press the clutch in. I have put on new spark plug wires, regapped the spark plugs, replaced the IAC and tested the TPS (which was .92 at closed and 4.86 at full throttle. I have also checked the vacuum buy spraying ether on the hoses and intake and nothing changes. What else can I do to stop this? I did run a 1/3 can of seafoam thru it and it started with the over reving. The high idle has been with the truck since I've had it. I'm thinking about unplugging the O2 sensor but I can't seem to find where it plugs in at. what do yall suggest. The over reving is killing my mpg