4.3 Vortec timing question
#1
KickinAssAndTakinNames
Thread Starter
4.3 Vortec timing question
The intake manifold gasket blew on my Vortec 4.3. I've replaced the gasket and got it running again, however it is back firing and running rough. What can I do?
#2
9 Second Truck Club
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You need to take out #1 sparkplug, and get engine on TDC where the line on the balancer, and timing cover line up. There should be a little marker in the distributor at 8~9 oclock line the rotor up with that and you should be good to go. You probably have it a tooth out of time or a plug wire crossed. Check plug wires 1, &3 they dont go in order. This is info on a 2000 4.3L.
#4
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No, your prolly not, but I am. Mine does the same but will not start. Throwing code 1351: Coil High Voltage. Mine pretty much has a short in the wiring harness somewhere or the computer is bad.
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#9
KickinAssAndTakinNames
Thread Starter
well went over the plugs again and found it was wrong. so i fixed that, started it up and its still idleing high not as high though, stoped backfireing, but is still really rough.
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