I've been dealing with an annoying idle bounce issue for a while now, it will jump quickly 200-300 rpms (sharply), not sure what this quick idle bounce indicates but here are all the things I've tried so far.....
New:
TPS
IAC VAlve
Cleaned MAF w/ MAF crc cleaner
Cleaned Entire Throttle Body
Spark Plugs
Spark Plug wires
LIM Gasket with new aluminum design by felpro
UIM Gasket w/ new Plenum by Dorman (did check for having both o rings on the pcv valve)
Fuel Filter
Air Filter
Performed Idle and throttle relearn procedure after all work...
I've tried spraying carb cleaner around motor while idling and really couldn't find any noticeable difference anywhere...
I did check over the vacuum lines and some rubber elbows are not in the best shape....
Anyone know where I can buy all brand new vac lines for my 2000 Grand Prix 3.8l??
Somebody else wanna chime in on what other possibilities i'm looking at??
