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CentralTex 254
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« on: July 10, 2013, 09:05:00 pm » |
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If it cranks fine and will run and die at different times it seems to me your truck might be going into limp in mode. It does this if an issue comes up that can hurt the engine or drivetrain. I have seen a few things that can cause thus big the most common two are bad correlation problem from throttle petal sensor and throttle position sensor if that year had fly by wire (electronic throttle pedal sensor) and not cable style throttle.
The next most common I'd your o2 sensors and or cats. If the 02 sensors make your engine run to lean or too rich it can and will throw the truck into limp mode so you won't destroy the cats.
First thing first put a scanner on it to narrow the problem down.
Auto and heavy equipment mech
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Logged
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Come and Take It I dont like  talkers |
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