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idles high

  1. 4.6L Tech
    Hi guys im new here and today my check engine light came on. I bought a stack racing plenum from american muscle and put it on and this codes came on and called americanmuscle and they said the codes came on because i needed a tune. I bought a sct tuner and the codes went away for a day then...
  2. 2.3L Tech
    My stock in-dash tach will sit around 2500-3000 RPM at idle even though the car is not idling nearly that high, but the tach will never go lower than that until it goes back to 0 when i turn it off. When i am driving, it will move, but it will still never go below around 3000 RPM. Is there any...
  3. Introductions
    hello everyone, looking to get some good info. 1995 mustang gt 5.0, having an idleing problem. starts at 2,000 rpms and i have to keep my foot on the brake or else it goes up to about 40 mph on its own. oh and small thing i noticed is the temperature is always cold. just started happening one...
  4. 5.0L Tech
    I have an 86' 302 and after I drive it for more than 5mins and I push in the clutvh and downshift for example, i'll downshift into 2nd and let out the clutch the rpms stay at about 2000-2500 until I accelerate for a bit and then it's normal again untill I push the clutch or coast with the clutch...
  5. 5.0L Tech
    hello my mustang has recently had the block replaced because the old one was busted, swapped heads, intake, etc., onto the new block which i was told was an 88, after i got the car back from the mechanic it is running very rich while idling and driving, and idles up longer than it should on...
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