Re: 2000 6.0L runs rough and stumbles
the problems were before all the parts. some problems went away with the new parts. like hard starting was due to the bad pressure regulator. pump was on its way out and sending unit didnt work so that was a no brainer. I have a local shop that can do a pressure check on the injectors to see if they are working. havent gottin to that yet. they also said try changing plug wires. those are original. the plugs are ac delco. it looks like it runs lean. all plugs are a very light tan almost like they were just put in with little miles and they have about 20k on them. But the shop said that these do usually run lean.
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