Gas gauge bouncing around??

[Tornado]

My gas gauge just started bouncing around real bad...when I turn one way, it pegs full, and turning the other way it pegs empty. It just started to do this, does anyone have this problem? What's the cure?

Thanks!

[SilverBullet75]

Better gas....


JK! Sounds like the fuel level sender is bad. Maybe someone else can explain how to replace?

[Heraclid]

While mine isn't quite that bad, I've been thinking it's time to do the same thing. I think someone previously said you can get the part from St. Charles Isuzu for about $35. Apparently mine has been screwy for a long time. It reads 1/4 tank when it still has half a tank left (or more). It could be worse though - it could be reading too high. :-) I wonder if it has anything to do with the fact that I always fill it up when it gets to 1/4 tank? I heard letting it get too low on a consistent basis can be bad for the fuel system so I just developed a habit of refilling then.

Anyway, I haven't gotten under there and really looked at it yet, but my VX maintenance CD makes it look like a pretty simple and straightforward replacement (unplug a pin connector, a few screws). Here are the screenshots:


http://www.vehicross.info/gallery/data/500/medium/FGU1.jpg

http://www.vehicross.info/gallery/data/500/medium/FGU2.jpg

http://www.vehicross.info/gallery/data/500/medium/FGU3.jpg

http://www.vehicross.info/gallery/data/500/medium/FGU4.jpg

http://www.vehicross.info/gallery/data/500/medium/FGU5.jpg


Hope that helps!

[SGT.BATGUANO]

I've seen kits on ebay that are supposed to overcome this problem. You'll have to pick through an Isuzu search, or try adding fuel and or gauge to the search. I think there might be a couple different plug configurations, so get the correct number from a dealer first.