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Re: Setting timing
It does have a stumble when i lightly put my foot on the throttle, but drive fine after that. Almost everything on the truck has been replaced about a year ago. Wouldnt rule out any of those parts going bad already, but I was told the throttle shaft that goes threw the TBI after years will become loose and cause a vaccum leak by the throttle blades. And Ived checked the injectors as the truck is running with a flashlight and they seem fine. I will advance the timing to 4 btc and reset the ecu and see if that fixes the problem
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