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bobdavis2010 · 10-29-2017, 09:58 PM

I have a 5.7 Vortec motor in my 59 Chevy truck I am getting misfire codes it started off with cylinder eight then seven then five and now it has multiple misfires P300 code. Today I put new plugs,wires and cap and I'm still getting a code P300 any suggestions on what To look for?

10-29-2017, 09:58 PM	#1
bobdavis2010 Registered User Join Date: Jan 2016 Location: Albuquerque New Mexico Posts: 54	97 chevy 5.7 vortec multiple misfires I have a 5.7 Vortec motor in my 59 Chevy truck I am getting misfire codes it started off with cylinder eight then seven then five and now it has multiple misfires P300 code. Today I put new plugs,wires and cap and I'm still getting a code P300 any suggestions on what To look for?