Thread: Vibration at idle
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Old 06-08-2012, 05:33 PM   #2
pwpanas
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Quote:
Originally Posted by CarpeDiem View Post
Mark IV all-stock owner ('98), auto, have significant vibration at idle, worse at stop with foot on brake, goes away @~ 1100 RPM and otherwise engine purrs like a kitten (ok, maybe a mean one). Been to 3 different mechanics (incl Toyota dealership) and no one can fix it. FYI- I'm not a sophisticated car guy, but that's probably obvious!
1) TT or N/A?

2) Without being there in-person to troubleshoot, I'd suggest one of the likely culprits is a misfire...possibly due to an ignition issue. How old are your sparkplugs? Do you know what they're made of (copper, platinum, iridium, etc.)? How long since your last tune-up (and plug change)? How many miles on the car (and therefore the ignition system, coil(s), ignitor, etc.)?

3) Get/borrow/use a compression tester and post (or PM) the individual results for each cylinder.
http://www.mkiv.com/manual/manualtt/...eck/index.html
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Last edited by pwpanas; 06-08-2012 at 05:36 PM.
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