Article > Hard Parts

I have a 2002 Chevy Blazer, 4.3L vetch. Anytime I’m in park or mainly neutral, my gas gauge goes crazy. If I even touch the gas pedal, I lose a minimum of a quarter tank. Why is that and what can I do to solve this issue?


A faulty or burned-up wiring connector at the fuel pump module is common. The fuel sender and fuel pump are one unit inside the fuel tank. The fuel pump side of the connector generates a lot of heat and can melt the connector causing stalling and or fuel gauge inaccuracy. It's a dangerous job to remove the tank. Have a professional service center do it.

Jim O'Neill
Chino Autotech Inc.
Auto Club SoCal AAR

  Previous Comments
avatar   tj hulsey   star   1/6/2010   8:37 PM

i have a 2001 blazer and it does the same thing even after i replaced th e pump and harness. i was told that gm had a problem with the actual cluster.

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