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#1071320 07/11/21 07:48 AM
Joined: Jan 2008
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Aloha guys.

Recently, I'm having problem with my SS gas gauge. I been noticing this for a while, but it just been confirm just the other day and wasn't figment of my imagination.

Problem I'm having is sometimes, on rare occasion, my fuel gauge needle gets stuck on the right side, way passed full mark like the connection at the sender is disconnected. When I noticed this, I was driving, on my way to PT so I figure I'll look under the car when my PT is done. About 10 minutes into drive, gauge started to work normal. This has been going on more and more recently, I just couldn't confirm this until recently.

I'm suspecting something simple like bad ground, but I thought I'll ask here first. What could be more common cause for this? Connection side at the rear or more on printed circuit at the gauge panel? I do have Autometer fuel gauge sitting somewhere if I need to bypass the stock unit, but it's just fuel gauge. As much as possible, I like to stick to stock unit.

Oh, and by the way, since we are on the subject of fuel gauge, how can I stop the needle from going all over the gauge when I'm driving? I had a 85' Gutless before and that fuel gauge didn't bounce all over. Diode in one of the feed line?


1986 Silver MCSS - Poly bushing and Hotchkis spring w/Bilstein, Posi w/3.73, MSD 6-AL, E-Brock 600cfm, Aluminum 2-row radiator.
1986 Black MCSS - R.I.P............Finally.
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there are many online procedures to check gauge by grounding the wire at the sender the ground is hidden near the rear bumper this will tell iy if it is the gauge or sending unit

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Years ago chased the erratic fuel gauge problem. Checked the ground at the bumper, connections at gas tank, the cluster connector in the right lower corner of the cluster. Pulled the cluster and found the three metal female connectors where the gauge plugs into the printed were loose on the printed circuit . Removed those metal connector with a tool i fashioned and rebent the little tabs on each that hold tension to the copper on the printed circuit. Reinstalled with the tool made and no problems with the fuel gauge since.

Another problem with the stock gauges is they have a silicone fluid inside the gauge that dampens the needle movement. Over time the fluids may leak out and the gauge needle will be jumpy. Had to replace a gauge for that reason, When the turn signal was on the volt gauge would dance to the turn signal beat.
Bob

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I always thought mine dancing to the beat of the turn signal was normal. Learn something new around here all the time.

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Thanks guys. I will try look for the corrupt this weekend if I can.

If not, I need to wait until next weekend.................


1986 Silver MCSS - Poly bushing and Hotchkis spring w/Bilstein, Posi w/3.73, MSD 6-AL, E-Brock 600cfm, Aluminum 2-row radiator.
1986 Black MCSS - R.I.P............Finally.
Joined: Apr 2011
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Not the right way to fix, but I'd think that a small capacitor on the feeds to the volt gauge or gas gauge would filter out some noise. Anybody have any experience with that?


Shawn

'85 MC with budget 5.3L swap, TH350 with stock 2.14 rear end
It ain't much off the line, but it's nice on the highway

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