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blue gmc

blue gmc 3/4/2011

2001 GMC Savana 1500 SLT 8 Cyl 5.7L

Engine

my engine light is on - auto zone says fuel vapor sensor (I have the part it's not installed yet)

now the fuel gauge is not registering correctly at idle it'll drop below empty - could it be the fuel level sensor? or sending unit?

2 Answers


CVO

CVO 3/4/2011

Inspect the fuel level sensor connector to the sending unit for any corrosion. Clean it and test it to see if it reads a full gauge. Grounding that pin to a good chassis metal contact will test the fuel level sensor for their full gauge readings.

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CVO

blue gmc 3/5/2011

thank you

HouseCallAuto

HouseCallAuto 3/4/2011

Tell us the P code please, not the description of the code. It makes it easier to research.

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HouseCallAuto

blue gmc 3/5/2011

thank you I will find that out.

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