Hi. I have a 2000 Montana with 106,000 miles, 3.4 V-6 that has developed an tech stumpng problem. It will run fine for a while then at random it will start bucking and missing under a load. It will idle fine but won't take gas. As randomly as problem starts it ends and then it will run fine for a while. Fuel pressure checks fine at rail (even when its doing it's thang), no mil, codes, mechanic suggested and replaced mass air flow sensor, new fuel filter. still does it. Also it seem like it's low on power on acceleration like mass air sensor problem, could I have gotten a faulty replacement? (it was a rebuilt)
Aug 5, 2007 at 8:34 PM