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01-28-2004, 05:13 PM
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#1
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My car's idle is all screwed up.
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Mustang Freak
Join Date: Jun 2003
City: Davenport, IA
State: Iowa
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Sometimes my car will randomly decide that it needs to idle at anywhere from 2500-3800 RPM. If you blip the throttle all the way open, the rpm's spike, drop to normal then go back to where they were. I.E. 3500 to 4500 to 1400 back to 3600. I've messed with the throttle linkage, and that's fine. The butterfly closes all the way, but the idle is unreal.
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T-loc, Custom CAI, Half-shafted throttle body, Steeda Quick Release Clutch Quadrant w/ Firewall adjuster and adjustable clutch cable, ASP-underdrive pulley, GT rear swaybar, GT Quad Shocks, Full MM Coilover conversion w/ "aggressive springs," 17" Grey Torque Thrust wheels, FMS Aluminum driveshaft & Tri-Ax Shorthrow shifter. SSM ported intakes and a FLEX 1/2 spacer, RPM ported heads and a 207 cam. SCT chip. 
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01-28-2004, 05:16 PM
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#2
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God
Join Date: Jun 2003
City: DFW, TX
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either a vacuum leak or a manifold leak.
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01-28-2004, 05:51 PM
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#3
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Mustang Freak
Join Date: Jun 2003
City: Davenport, IA
State: Iowa
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But wouldn't that always do it? This is an intermittent. I just drove for about 5 min and it was freakin out the whole time. I shut it off, let it sit for 5 min while I got a burger, and when I came back out, it was fine.
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T-loc, Custom CAI, Half-shafted throttle body, Steeda Quick Release Clutch Quadrant w/ Firewall adjuster and adjustable clutch cable, ASP-underdrive pulley, GT rear swaybar, GT Quad Shocks, Full MM Coilover conversion w/ "aggressive springs," 17" Grey Torque Thrust wheels, FMS Aluminum driveshaft & Tri-Ax Shorthrow shifter. SSM ported intakes and a FLEX 1/2 spacer, RPM ported heads and a 207 cam. SCT chip.
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01-28-2004, 05:59 PM
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#4
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God
Join Date: Jun 2003
City: DFW, TX
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yes and no. i would do it most of the time, but there are freak occurances when it wouldnt. if its a vacuum leak, if the hose is loose and it hits metal obstructing its flow for a min, it wont. etc
pop your hood and make sure every hose goes somewhere.
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01-28-2004, 06:20 PM
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#5
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Mustang Freak
Join Date: Jun 2003
City: Davenport, IA
State: Iowa
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About 90% of the time it runs fine. If it's a gasket is there an easy way to find it with out just replacing it?
__________________
T-loc, Custom CAI, Half-shafted throttle body, Steeda Quick Release Clutch Quadrant w/ Firewall adjuster and adjustable clutch cable, ASP-underdrive pulley, GT rear swaybar, GT Quad Shocks, Full MM Coilover conversion w/ "aggressive springs," 17" Grey Torque Thrust wheels, FMS Aluminum driveshaft & Tri-Ax Shorthrow shifter. SSM ported intakes and a FLEX 1/2 spacer, RPM ported heads and a 207 cam. SCT chip.
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01-28-2004, 07:37 PM
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#6
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zoom zoom
Join Date: Jul 2003
City: College Station, TX
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check all the lines man before you go ripping into her. i had a rough idle when i had a leak but not freaky high like you. when did your new intakes go on? if it's been a while i really doubt it's an intake gasket problem but brandon would know bette rthan me. you haven't messed with your maf or piping recently right? |
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01-28-2004, 07:53 PM
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#7
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God
Join Date: Jun 2003
City: DFW, TX
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you can turn the engine on and actually spray a little water near the intakes if it is them. but i would put money on it being just one of the vacuum hoses came loose
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02-11-2004, 08:27 PM
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#8
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Registered User
Join Date: Jan 2004
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 has it gotten progressively worse over time, if so you should checkc you ivs and make sure it's workin properly.
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All pigs are useless!
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02-12-2004, 02:41 PM
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#9
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Registered User
Join Date: Jan 2004
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My car idles at 2500 rpms when I turn my car on, but after I tap on the gas it runs fine, I never thought to check the hoses. Could that be the problem :-? :oops:
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02-12-2004, 07:44 PM
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#10
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Registered User
Join Date: Jan 2004
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my car idles at around 1500 but i think that's the choke working fine...i don't press the gas pedal though, i just let it idle down by itself.
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All pigs are useless!
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02-12-2004, 08:35 PM
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#11
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postarama
Join Date: Aug 2003
City: Southaven
State: Mississippi
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When you first crank your car it idles higher...
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"I'm not driving too fast...just flying too low"
Mine:
-87 ranger- broke
-03 SB Cobra vert- 2552 of 5082 Born 02/25/03
Our's:
90 7up vert - new project
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02-13-2004, 03:41 PM
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#12
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Registered User
Join Date: Jan 2004
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aight, thanx for the tip man
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Dual cat-back exhaust
V-6 cold air induction kit
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