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I have 2008 Tahoe with 5.3 getting code p2635pd. What is that

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Code p2635pd popping up all the time

Vehicle: 2008 Chevrolet tahoe have 5.3 motor

1 Answer

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P2635 Fuel pump flow performance

You may need to replace the fuel pump, The ECM supplies voltage to the FPCM (fuel pump control module) in order to maintain the desired fuel rail pressure.

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