Question about Banks 2003 GMC Sierra - Extended cab, short bed, 6.6L Duramax, without catalytic converter - Big Hoss Bundle

1 Answer

What causes a reduced engine power code.

The truck is a 2003 sierra slt 4.8 vortec. when driving a reduced engine power code will pop onto the dashboard reader and it is lacking power. when you shut the truck off for at least a minute and start the truck again the truck works fine.

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You need to stop using any vehicle, with any
problems,lack of power & system faults & dash
MIL lamps lite

A repair shop or dealer, will answer that, after
they check for codes & diagnose the vehicle
to find a problem

Posted on Nov 24, 2014

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