2009 GMC Sierra 2500 HD Questions

Answered 2009 GMC Sierra 2500 HD Questions

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this happens only some time but more frequently lately,seems to be in the control circuitry, could be a relay or resistor failing .
can't figure to to dislodge the in bumber sensor to be able to replace it in new bumper.
Blows back fuel when filling up. Have to fill it SUPER slow or in short bursts. Very frustrating. Thanks.
It is Fully Charged, The low Pressure Switch has been replaced. but it still turns on and off on its own. The fan does not tirn off it is only the compressure.
I'm trying to upgrade my spark plug wires, but can't seem to take the stock wires off. The plug wires have the metal shielding around each boot (on the plug end), and I cannot seem to pull them loose from the plug. ...