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Are these symptoms of a vacuum leak?

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Old 09-03-2008, 01:18 AM
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Default Are these symptoms of a vacuum leak?

car idles like crap in the heat and dies sometimes while at a light. when feathering the gas on the freeway, can feel the car stutter like it hit a small wall and then catches again.

in the cool, the symptoms are MUCH less prevalent.

exhaust smells very rich.

If these are the correct symptoms, how can I diagnose? I checked under the hood and couldn't find a leak for the life of me. Tried hooking up a compressor to the intake, but didn't hear any leaks coming from the hoses. All boost hoses seem to be on tight, so I'm guessing it's a vacuum leak but I can't find from where.

ANY HELP MUCH APPRECIATED!

1999.5 1.8tqms APR stage 3 124k on the odo.
Old 09-03-2008, 07:18 AM
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maybe icv?
Old 09-03-2008, 12:29 PM
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i don't think the 1.8t has an idle control valve
Old 09-03-2008, 08:35 PM
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Default well then..

i guess no one else has any ideas yet. atleast i tried.. bad alternator?
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