Engine Performance problem
2001 Chevy Venture 6 cyl Two Wheel Drive Automatic 137000 miles
My regular mechanic is absolutely stumped. Van starts fine, but about 500 ft down the road or a minute and a half later, the engine starts to bog down, like it's not getting any gas. If I slam on the gas it'll eventually rev up and start going, only to falter again. I have to repeat this revving up thing until about a mile down the road when everything gets normal, inexplicably.
My regular mechanic has checked the pump, changed the plugs and wires, replaced the o2 sensor, among other stuff. He kept it for a week, trying to catch this behavior, as it is sometimes intermittant. The only codes to come up were a misfire on cylinder 6 and a rough shifting code from the transmission and a code about the fuel sensor for the gas gauge.
i brought it to a dealer, who asked that the plugs and wires be replaced before they went any further. They cleaned the injectors, which they also said would show if there was a bad injector. After that it worked fine for a while, but got progressively worse and worse until it again reached the situation stated above.
i've cahnged the plugs and wires, but am hesitant to take it back to the dealer as I think the misfire is from when i'm gunning it to get it going.
have the same problem?
Wednesday, July 7th, 2010 AT 3:07 PM