Scaper
Newbie
I have a 96 c1500 5 speed 4.3. The issue I am having is at start it fires up and idles fine. When I start driving it, it feels a little bogged down and under heavy load(hills) will back fire. But at a point in time it will all of sudden clear up and run great. Until I shut it off and even if it is only five minutes, at restart will need to " clear itself out again" and then run great.
Plugs, wires, cap and rotor, ignition coil and module have been replaced. I do not have a scan tool, but the local garage guy as drove it with a scan tool hooked up to it and at first does show miss fire in cyl one, but when it " clears up" shows no issues.
Any ideas would be helpful, thanks.
Plugs, wires, cap and rotor, ignition coil and module have been replaced. I do not have a scan tool, but the local garage guy as drove it with a scan tool hooked up to it and at first does show miss fire in cyl one, but when it " clears up" shows no issues.
Any ideas would be helpful, thanks.