My 04 4.0 has a high idle at start up(1500rpm) for approx 2 min then comes down to 7-800.
After driving with the cruse on far say 30 mile or so. Then i can turn it off, push in the clutch and let off the gas completly(coasting) the rpms sit at 2000-2200.
Driving thru town i can be crusing in 2nd at approx 1500rpm and go to shift to 3dr, but when i puch in the clutch and let off the gas, the rps come up to 2000.
I have check mutiple times for vaccume leaks and found NOTHING!!
I have put in a NEW TPS, IAC and a PCV(if yoou want to call it that). Still has the same issues. It is very annoying for the past 10k.
O and the throttle cable is free as welll as the Throttle body
04 Supercab 4dr 4.0 5spd 4x4 EDGE. Daily Driver
96 F350 Crewcab 460 5spd Vortech S/C 4X4 6" 35s
94 Lightning Bassani headers back CAI Underdrive Pulleys
86 F250 Reg Cab 6.9 4Spd 4x4 6" 35s (powerstoke,D60 5spd on the way)
80 F350 Reg Cab 429 C6 4x4 L&L headers F450 rear springs All Out Pulling Truck(D60 Laddered Frame, 540cid coming)
Last edited by DieselBrad; 06-03-2010 at 12:54 AM.