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Old 08-10-2010, 09:47 PM   #1
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Motor lugging down

Every now and then while i'm setting at a red light my jeep starts to lug down like the clutch is being let out a little bit while holding the brakes.It's done this about three times now.I don't think it's a fuel problem because it has'nt quit running and runs great down the road.I kinda thought the spark plugs might have been fouled so i replaced them,but that did'nt cure the problem.What else would cause this?

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Old 08-10-2010, 09:53 PM   #2
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Holding brake?Maybe a vacuum leak.(power booster)Just a quick quess here.

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Old 08-10-2010, 10:01 PM   #3
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Negative on holding the brake,and i'm positive there's no vacuum leaks because it sits there purring like a kitten until this happens
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Old 08-10-2010, 10:04 PM   #4
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I've checked everything i could think of like vacuum leaks etc. all except fuel filter which is not serviceable.
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Old 08-10-2010, 10:10 PM   #5
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Could this be caused by the clutch throw out bearing or clutch?
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Old 08-10-2010, 10:30 PM   #6
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something is pulling it down.You'd hear it if it was the throwout bearing.
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Old 08-10-2010, 11:07 PM   #7
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Like a clunking or knocking noise?
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Old 08-11-2010, 10:33 AM   #8
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Check and clean your IAC and throttle body ... That should take care of it.
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Old 08-11-2010, 11:39 AM   #9
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I misunderstood.I thought when you apply your brake the motor boggs down.Sounds like an idle prob,x2 on cleaning your IAC.

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