i wasnt sure where to post it, so since the gas gauge IS inside the car, i posted it here.
neway, my gas needle floats back and forth alot, about an eight of a tank either way, so im not sure how much gas i have in my tank... and its startin to piss me off
ne one else had this problem?

Mine moves around alot when i put the car into park, it can move from 1/4 tank up to 1/2, i have had it move from 2/4 up to full before. odd

Sounds like the Fuel Gauge Sending Unit. This is the float in the gas tank sending an irattic signal to the gauge causing the needle to fluctuate.

mine does the same thing from time to time..

here's a clip of when ir really was fking up

click pic



it got to the point where it went all the way under the temp. gauge

with time it fixes it self

this was the only time i took my needles and moved them back to default

then reset the cluster

and its happend again a handful of times

but it ususally fixes itself after a few days (i keep a full tank)

and no i havent taken it to the dealer b/c most times they are @$$'s

and also b/c i have alot of LEDs back there..lol

huh
so would this be normal, depending on how u drive? would the gas slosh around in the tank and cause it to drop or rise? cuz i can be known to drive a little... erratic
lol

Or when you are idling, it is a release of excess fuel in the lines back into the tank to maintain pressure.

mine does this all the time, it will go to a half tank, then go back towards full, it is usally right when i first turn the key on that is it



fully built 2200-TO4E T3/T4-HP tuners-373hp @18psi

Normal...happens all the time, abou 3-4 millimeters in either direction, once you stop and put it in park.






Silver Stripey makes your Day!

Ozzie(aka LED KING) wrote:

and no i havent taken it to the dealer b/c most times they are @$$'s

and also b/c i have alot of LEDs back there..lol

I told you to go to Tom Benson. They will take care of you. If you have any problems with them call me.

there is a certin chemical (dont remember the name)you add to your tank to help clean off the "plate" that reads your fuel level, it gets corroded overtime from additives they put into fuel, causing bad/jumpy readings.

this happened to my car (04 cav) i've been back and fourth with the dealership for about a month before they finally found the prob.

they replaced the BCM.

they replaced the sender unit (dropping the gas tank), and a bunch of other stuff, reprogrammed the BCM, and finally replaced it which did the trick.

my guage would eratically go up and down, the low fuel light would come on, etc.. finally the headache is fixed



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Cavillac

Big Boi -Coloradojbody.org- wrote:there is a certin chemical (dont remember the name)you add to your tank to help clean off the "plate" that reads your fuel level, it gets corroded overtime from additives they put into fuel, causing bad/jumpy readings.

interested in this.. mine will sit on full and while im driving will go down to 1/2 then back up. it just goes back in forth.. weird so i wouldnt mind knowing this chemical..

Manta Z(The Primered One) wrote:

Big Boi -Coloradojbody.org- wrote:there is a certin chemical (dont remember the name)you add to your tank to help clean off the "plate" that reads your fuel level, it gets corroded overtime from additives they put into fuel, causing bad/jumpy readings.

interested in this.. mine will sit on full and while im driving will go down to 1/2 then back up. it just goes back in forth.. weird so i wouldnt mind knowing this chemical..

Yeah i need that , my car said i had a 1/4 of a tank, and i NO GAS at all.

I need that chemical.

ill ask my pops when i see him tonight (hes a GM Tech)

yeah i think my sending units fudged too, but it stays stuck on full till its actually on empty then it starts bouncin around. im told its prolly a wire from the sending unit, hopefully not the sending unit itself (knock on wood). i would try this chemical first before checkin my wires.

Mine does this as well but only when I park the car.... also reads gas oddly from time to time. THe last tank it went to 1/2 upon only travelling 160km and then stayed there until 250km before it moved again... End result in tank was around 400km.... Which is usually what I average per tank. 450 would be nice once in awhile with gas prices these days...

However I filled up last night on my way home from visiting a family member and its almost at 200 at the 3/4 full mark.... Driving me nuts...