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68gmsee · 08-18-2013, 05:56 PM

One question, does it only bounce when driving around and remains steady when parked?

Neither one of my trucks had/have a bouncing fuel gauge and I drive through quite a few dirt/gravel roads. The first thing I'd do is make sure there's a good ground from the cab to the engine back to the negative battery. Also, on the back of the gauge cluster there should be a ground wire going to the cab. After that, look for loose connections behind the cluster.

08-18-2013, 05:56 PM	#3
68gmsee Active Member Join Date: Jul 2007 Location: Centrally located between Houston, Austin and Waco. BCS area. Posts: 7,947	Re: Gas gauge bouncing One question, does it only bounce when driving around and remains steady when parked? Neither one of my trucks had/have a bouncing fuel gauge and I drive through quite a few dirt/gravel roads. The first thing I'd do is make sure there's a good ground from the cab to the engine back to the negative battery. Also, on the back of the gauge cluster there should be a ground wire going to the cab. After that, look for loose connections behind the cluster. __________________ 68 GMC 250/3 speed Saginaw p/b p/s 69 Chevy 350/350 currently in pieces still lookin for a cab 06 Trailblazer I just want a vehicle that I can work on, that won't talk to me, leave error msgs or keep track of how I drive...