04 GMC Sierra 2500HD 4x4 6.0 V
#1
04 GMC Sierra 2500HD 4x4 6.0 V
Hello all I'm new to the forum .I have a question about my truck.My 04 has 118000 mi.I know that I need a cluster for my Speedo.But my engine light came on ,and off..went to auto zone and the code was 0300"random misfire".Changed all plugs and wires.Cleared computer.Now it stays on all the time.Rechecked all wires-ok.Seems to run alright definitly better than before.#3 plug had a burned off electrode(completely gone). I assume is what started the light coming on in the first place.Please help Thanks
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[IMG]local://upfiles/5027/50041B32A4884CD0878C342359F17F3B.jpg[/IMG]
#3
RE: 04 GMC Sierra 2500HD 4x4 6.0 V
Thats exactly what i did and it came back up as "random misfire" again.Thats when I rechecked the wires and plugs.They are all ok.I used ac/delco plugs,but all they had in wires were Bosch (7mm) wires.Loooked the same and were same length.Light went off this morning .we will see if it stays off.But thats been the routine.
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