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 > Erratic fuel gauge

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akaPedro

Garaged

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Posted: 09/13/21 10:52am Link  |  Quote  |  Print  |  Notify Moderator

Not working well. Noticed after a right-to-the-top fill up last week.
Gauge reads full while traveling 200-300 miles. At rest it drops to 3/4 full. This is a 2003 National Dolphin LX6355, W22, 8.1L engine. Not an Actia dash, don't know the mfr.

Is there a way to diagnose with a code reader and possibly fix without going into the fuel tank and replacing the sender/float ?

Thanks for listening

jdc1

Rescue, Ca

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Posted: 09/13/21 11:18am Link  |  Quote  |  Print  |  Notify Moderator

Now it's stuck at the top. If you could get a hammer in there and bang around, it might loosen it up enough to drop. I'm not going to tell you why they say not to top the gas off. I think you know what could happen now. We all do it, until that happens.

akaPedro

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Posted: 09/13/21 12:39pm Link  |  Quote  |  Print  |  Notify Moderator

Thanks....had not thought of that. I am an automotive/handyman DUNCE. Guess a rubber mallet and not a regular hammer ?

TIA

monkey44

Cape Cod, MA and Central Fla

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Posted: 09/13/21 01:33pm Link  |  Quote  |  Print  |  Notify Moderator

If it's an 8.1, probably a GM ... if so, dash panel might need replacement - cost about $400 ... had that happen to my 2003 in 2008, and that was the issue. GM knew it, but claimed out of warrantee - and lots of GM dash indicators failed in several years production around that time. Some failure of switching relays. Had new dash panel installed, that fixed it. Although several of my gauges failed, not just fuel gauge, but they failed one by one, not all at once. A little puzzling at the time.


Monkey44
Cape Cod Ma & Central Fla
Chevy 2500HD 4x4 DC-SB
2008 Lance 845
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jodeb720

Denver

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Posted: 09/13/21 10:51pm Link  |  Quote  |  Print  |  Notify Moderator

my 2003 chevy silverado truck had a similar problem. Gauges one at a time started to fail.

Found a guy on fleabay and for 75.00 he fixed it up and shipped it back to me.
NO fuss, no muss.

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