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Another idea is what I think my car is falling prone to...cylinder wear. After a while, idle compression starts to vary (lots of miles) and each cylinder contributes a different amount of force to the crankshaft, creating a "semi"-rough idle. When you give it some gas, or there isn't any real load on the engine, the uneven firing isn't as noticable. Another thing is the injectors. After a while they don't atomize as well, and at idle when the flow is at the least, it will be the most noticable...Just some more ideas for you.
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1995 Firebird 3.8 A4, 140,000 miles and going strong<br />Basically Stock, college=poor <p>Junior Mechanical Engineering Student: Milwaukee School of Engineering; Cpl, MN Army National Guard...just got promoted :) -
Any update on this? I'm interested to see what it was... [img]smile.gif[/img]Justin<br /><a href=\"http://www.bass482.com/firebird/index.html\" target=\"_blank\"> 2000 Black Firebird A4 Y87<br /></a>170.2rwhp/203rwtq (SAE Corrected)Comment
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Sorry, no update yet..... still waiting for someone to check it out for me.Thanks tho,as soon as i find out what it is I'll let ya know. ~Denise~ [img]smile.gif[/img]94 3.4... laser red ZRoc hood<br />see pics @ <a href=\"http://members.cardomain.com/camarochk\" target=\"_blank\">http://members.cardomain.com/camarochk</a>Comment
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yeah, id check motor mounts and bushings.Comment
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