V6 (1994-2004) Mustangs Technical discussions on the 3.8L and 3.9L V6 torque monsters

rough idle with no power

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Old 07-08-2010, 12:38 AM
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jennypoo
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Default rough idle with no power

HELP!! I have changed everything you can think of on this car and it still does the same thing, idles rough(around 850 RPM) when you give it gas there is no power, after a few seconds of feathering the gas petal it revs up. Changed or tested the coil pack,spark plugs,wires,T.P.S.,crank sensor,camshaft sensor,EEC,oxygen sensors(4) any suggestions will be appreciated.
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Old 07-08-2010, 11:33 AM
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Matt's 95 Stang
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We need more info. What year car? Any mods done to it? Did you do any work to the car before it started to act this way? How many miles on the car?

Matthew
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Old 07-09-2010, 04:05 PM
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JKs95stang
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+1 Matt, I need to do a sticky on troubleshooting etiquette.
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Old 07-09-2010, 04:16 PM
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Synyster06Gates
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check engine light?

It kind of sounds like a bad IAC or a vacuum leak.
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Old 07-09-2010, 11:18 PM
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i have an 02 stang v6 52000 miles it idles rough sometimes it will smooth then get rough again if i push it to the floor it will slowly rev up and the manifolds will get red hot
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Old 07-11-2010, 01:50 PM
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jennypoo
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It,s a '95 with 180,000 miles the only modifications are dual exhaust the check engine light is not on I tried dropping the exhaust to see if it was clogged cat-alack converters this changed nothing I'm starting to think it might be clogged injectors, the fuel pressure is where it is supposed to be
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