Report: ENGINE MISS
Pontiac G6 Problem
Engines Affected: 2.4L 4 Cylinder, 3.5L V6
Average Mileage: 62,500 mi (43,000 mi - 81,000 mi)
Visitor, 2007 Pontiac G6, 2.4L 4 Cylinder, 65,000 mi
cylinder 3 misfire
Visitor, 2009 Pontiac G6, 2.4L 4 Cylinder, 43,000 mi
G6 has a miss or sputters at a stop.Had fuel line cleaned & tune up with spark plugs replaced.Still happening.Very frustrating.
Visitor, 2007 Pontiac G6, 3.5L V6, 81,000 mi
#2 cylinder misfire...P0302.replaced plugs,wire,coil pack,swapped injectors.found compression 30 psi lower than neighboring cylinders.Oil in plugs hole didn't raise it but since oil pan needed to come off to reseal,rings were put on #2 piston.Sent head out and had valve job done.Was driving nice but after sitting at idle for awhile ses lamp came back on and vehicle started to miss.Have to check cam closer now.This car is a toilet.I've been repairing cars for many years and never run into such a mess.The car is fine not idling but have it sit and idle for a bit and it starts to act up.I've tried to be very logical in my approach.Everyone I've asked about it hasn't got a clue.I guess I'm wondering how common worn cams are on this 3.5L engine.I guess I'll try and find out tommorrow!
Ive noticed that my car while sitting rather at a redlight or in park in the driveway has a miss yet no check engine light the ac was not running took to dealership at 26,000 and they even said it had a miss but since its not logging a code (light) its not worth fooling with yest it does however concern me and its still doing it