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  1. V6 Tech
    I am having a problem with my with my idle. When I start my car the idle is around 2000 rmps, after a few minutes the idle will drop to 1500 rmps. Sometimes the rmps will drop to about 800. What could cause this problem?
  2. SVT Cobra Tech
    i have a little of a problem, my car idles at 1200 rpm and stays there very rare that it idles at 1000 or less. what can in be ? i already chance iac, and tps also when breaking the car rev don't come down only after it finally stops. huh.gif
  3. V6 Tech
    Hi Folks. Been reading the forums awhile but first time I had a problem worth posting about. My old headlight assemblies were in bad shape on my 2000 V6 convertible with daytime running lights (has the electric eye on the dash by the A pillar). I bought a pair of Anzo USA headlights with...
  4. 5.0L Tech
    Hey guys, I just got my 5.0 running again but it idles at a very high and loud (open headers still) 4000 rpms. I've started it 4 or 5 times for anywhere from 5 to 25 seconds each and no change at all. I figured it was just the computer adjusting, but it's not adjusting so far. Any thoughts...
  5. 2.3L Tech
    This is gonna be tricky so I'll be thorough. I recently swapped the engine, transmisson, rear end, and eec from a 1988 thunderbird turbo coupe (2.3) into my mustang lx. Before the swap I had one known issue. The thunderbird, warm or cold, would rev real high on start up. This could be as high...
  6. 4.6L Tech
    I have a 2000 GT with 155,xxx miles and a manual tranny. I replaced the IAC about 3 months ago because it was causing me some noises. Right after I first installed it, I noticed the idle became higher when I engaged the clutch or was rolling in neutral. I thought it was just because the IAC was...
  7. V6 Tech
    When i start my car (been working on it for a month or 2, so started it for the first time pretty much) it idles at almost 3k rpm, and stays there solid. what would cause this to happen?
  8. 5.0L Tech
    Hey guys I'm in process of building a EFI 331 Stroker. Trick Flow Heads with an X303 cam. I am afraid that my compression ratio is way too high. Is this ok for a street motor or can i do something like retard the ignition or cam timing. I'd rather not have to replace my heads or anything...
  9. 4.6L Talk
    So, I've been doing some quarter miles lately (maybe like four times), an I've notice that my RPM's go to just below redline. I want to make sure that this won't do any massive damage to my car. I just got my manifold replaced about a month ago, and someone told me the reason it cracked may have...
  10. Classic Talk
    Was the "high performance" emblem under the "289" emblem original? I don't think it is because when we bought the car we got all of the original parts and there are only "289" emblems with no "high performance" emblems.:?::alittlefeedback:
  11. 5.0L Tech
    Ive replaced my air charge temperature sensor, cleaned my throttle body and IAC as well as MAF sensor. the high idle occurs about 5 minutes into driving and is powerfull enough for my car to act as if its in cruise control, when i put my hand over the throttle body while it was running it killed...
  12. 4.6L Talk
    I have about 110k miles and full bolt ons. Never got around to tuning it. I figured I would get a dyno tune just to see some before and afters. But I know they go full throttle. And I am wary that something may go wrong on the dyno. I have an insanely clean engine, with regular fluid changes...
  13. 2.3L Talk
    hello forum, this is my first post about my car. i recently acquired a 2.3L 1989 mustang convertible lx. this car had been sitting in my aunts driveway for over 6 years without ever being started. my uncle gave it to me as a birthday present so i took it to a shop and $1000 later it was running...
  14. V6 Tech
    I have a 1995 Stang with a 3.8L V6 but I have had a problem with the car since I bought the car. Its slowly just been working its way up. But when you start the car the ideling is at 2500 RPM's roughly. I been told that the ideling postion sensor is going out, so I was thinking about buying a...
  15. 5.0L Tech
    I was building a 289 for my senior project and now that its almost completed ive got my hands on a 302. asking for help here on the 289 alot of people recommended i get DeskTop Dyno if i was into building engines from ground up so i invested in it and i have a blueprint for the 302 but with my...
  16. 2005-2010 Mustang Talk
    I have a 2007 v6 auto ford mustang and on the sides of the car it has "4.0 high performance" in red (where the gt would be on a V8) Does this mean anything, and does it have more horsepower look at the attachments.. Thanks
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