88 C1500 halfton - 4.3L 5spd standard- currently 211K bought with 203k
Had the Timing Chain and both sprockets changed, plugs and wires changed, set the timing, runs great idling can rev it up as high as you want runs fine. Then you take it on the road pretty much from 2nd gear on it just backfires, sounds like it wants to choke out. If I drive it slow in 2nd or 3rd it doesnt seem to mind, but when I give it gas it just backfires like crazy.
A little background which may help determine, the wife wanted to drive back from camp, never driving standard on highway before, and while going to downshift from 5th put it into 2nd at 110Kms/hr (70-75m/hr im guessing). I dont have a tac but im sure it went from 1500rpms to about 8000-9000 for about 5 seconds, before she got out of panic mode and pushed the clutch in. Right after that it started backfiring.
have the same problem?
Thursday, November 22nd, 2007 AT 9:47 AM