sending unit not really accurate

Baighn92 · Jan 15, 2024

Has anyone ever noticed their fuel gauge takes alot longer to go from full to 3/4 compared to 1/4 to Empty? I can get almost 200kms in first quarter tank, 150 in second quarter, 75 in third quarter and like 50 in last quarter.

Seems odd. Not sure if I bought a *****/wrong sending unit or what.

squeasel · Jan 15, 2024

I have a 96 Tahoe ... I am good for 100 miles from F to 3/4 ... about 60 miles from 3/4 to 1/2 ... same 1/2 to 1/4. At this time, panic sets in but the last quarter tank is more similar to the first. This has led me to distrust fuel gauges in general, even though this is the only one I have that is so inaccurate.

454cid · Jan 15, 2024

I think it's done on purpose, as it seems to be common. I noticed right away that my Volvos don't do that. They fall right away.

AK49BWL · Jan 15, 2024

Yeah most of them are not linear at all lol. It changed somewhat in 98 when they started routing the sender through the PCM, but not much.

Caman96 · Jan 15, 2024

It’s like the last of your beer. You don’t sip it, you chug right down. :cheers:

Baighn92 · Jan 15, 2024

Ok, good to know we're all dealing with same issue. It's kind of funny because after fill up, if I baby it, the gauge doesn't move for almost 100kms. It's a magical fuel efficient wonder-truck that burns no fuel for 100km! Something at GM was out of whack when they designed that.

Baighn92 · Jan 15, 2024

Caman96 said:
It’s like the last of your beer. You don’t sip it, you chug right down.

Then don't drink any water and straight to bed.

sending unit not really accurate

Baighn92

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squeasel

Newbie

454cid

Sooper Pooper

AK49BWL

GMT400 Forever!

Caman96

OEM Baby!

Baighn92

Newbie

Baighn92

Newbie

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