Hey guys new here, just picked up a 97 2500 with the 5.7 vortec motor. It was misfiring pretty bad when i bought it and throwin a few codes, so I did some research and figured out it was a worn distributor gear. so i pulled the distributor and sure enough it was worn down pretty bad, got a new distributor but it took a week for it to ship in and by the time the new one came in I forgot where the old one was lined up for timing.
I've read a lot of different posts telling how to place the distributor but im still having some problems so maybe someone can help clear things up for me a little bit. heres what i did
set the number one cylinder to top dead center on the compression stroke.
placed the distributor with the rotor facing the number one cylinder.
started the truck but its still misfiring and its throwing the p1345 code which apparently has to do with timing.
i have an elmscan5 compact scan tool running obdwiz and it shows what timing is currently set at and its telling me that im at 29 degrees. if i understand right it should be reading 0 so i figured my distributor was off by a gear, so i rotated one tooth clockwise and it started up but it ran like crap and the timing now read 33ish degrees. so i went back 2 teeth the opposite way and it wouldn't start up at all...
anyway i put it right back where it was before and its still reading 29 degrees and misfiring (although not nearly as bad as it did before i changed the distributor) so im not sure what to do from here.
sorry for such a long post and for having to ask questions on my first post haha its probably just something stupid. Im used to old cars, before this i had an old 63 corvair and you could just turn the dist to adjust timing (way easier haha)