Pontiac Grand Prix Forums : Grandprix

Well had my car in for service today and finally got them to hear the whine from my p/s. new rack and 2 new lower ctrl arm bushings under warranty (yay)

later tonite I noticed while sitting infront of my girlfriends work my car idling poorly. it would drop from 750 to 400 rpm then up to 1k and and repeat. with it shaking at 400.

When i got home i tried to duplicate it but it idled steady at 750 and didn't move.

any ideas? bad gas perhaps or an injector service should be considered?

08 GP
51000km

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Pics of my GP and other cars i've owned/help build at
http://s11.photobucket.com/albums/a178/kingmalm/

that sounds like a good starting point........get new gas as soon as possible and see what it does after that......maybe change the fuel filter......is it throwing any codes or are there any lights on?

yea no active or stored codes (was hoping for a misfire code) i'll prob try a fuel filter once this tank is gone. had it happen again tonite but was a little bit weaker. rpm's weren't dropping off as much could just feel a shake from time to time.

__________________
Pics of my GP and other cars i've owned/help build at
http://s11.photobucket.com/albums/a178/kingmalm/

good luck