last year i put new cat converters, this year new fuel pump new, new alternator it was charging a little low just in case wasn't getting enough power to comp. new fuel pump,put tablets in radiator in case leak to plugs. new i.a.c , just put new plugs and wires today had more power missfired a little still , also ordered SPECTRA PREMIUM / COOLING DEPOT C583 and SPECTRA PREMIUM / COOLING DEPOT C604, only changed the c583 the 6 plug one was all out of wack and defiantly all out of wack, instead of it going 173/642 it went 642/315

 

Can/have you let it run at night, with no underhood light or headlights and look for sparks. I had a misfire that I could not find and thats how I found it. Tiny spark where no spark belongs.

 

My truck has been running odd lately. Anyone that could help would be greatly appreciated

 

Please start your own thread, detail what you are driving, and what the problem is. The more detail you can provide, the better we can help you.