What does "Harness Code VAY" mean??

Asked by Jul 19, 2016 at 05:49 PM about the 1999 GMC Savana Cargo G1500 Cargo Van

Question type: Maintenance & Repair

I am trying to buy a fuel pump assy online, I found some that state:
w/Harness Code VAY for 98-02 GMC Chevy Van.

What does this this mean?

1 Answer

73,875

Looks like they were using different fuel pump modules during production of your van. Your van may have one kind of fuel pump module style and the next one coming down the assembly line has a different one. That three letter code is probably stamped on the old fuel pump module assembly. Best thing to do is take it with you to the auto parts store so they can match it up for you. Otherwise you might get the wrong one. HTH. -Jim

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