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Re: 2006 silverado no power in mid range
Posted to Transmission Forum on 6/4/2018

seen few times in avalanche 5.3L when the fuel pump pressure is lower than spec's it will set engine torque signal dtc code and will default the trans on 3rd gear, even though it wont cause any misfire, if it happen also during Torque converter lock up then it... Login to read more.