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Old 06-01-2004, 07:42 PM   #1 (permalink)
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gas gauge going a little crazy

Well i just wanted to know if this is normal. My gas gauge jumps around a lot. I get in my car today it said 3/4 right on the line. I drive down the block normally at 25mph go down a couple blocks i hit a red light so then i took a glance at my gauges to find my gas gauge going nearly 1/2 way point. so i keep driving and it stays around the 1/2 mark. I parked the car did some things i had to do checked back at the car is its back at 3/4.

I'm just wondering if this is normal. because this happens a lot to me. Its not like i floor it or anything its normal 15-35mph driving nice and smoothly. This has been getting to me for a while now just never thought much about it.
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Old 06-01-2004, 09:06 PM   #2 (permalink)
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drive up and down hills or something?.. they can only be so accurate.
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Old 06-01-2004, 09:09 PM   #3 (permalink)
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Recently, a few hundred Shell gas stations had to stop selling gas because of high sulfur content. The sulfur messes up your gauge's reading of the correct amount of gas.
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Old 06-01-2004, 09:09 PM   #4 (permalink)
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it might be a floater sensor going bad...

as long as you can tell when your gas is out, you are ok... i'd start counting miles if i were you though... never know if it might totally crap out on ya
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Old 06-01-2004, 09:39 PM   #5 (permalink)
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What i've heard are that Gauges never break/ go bad.
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Old 06-01-2004, 09:56 PM   #6 (permalink)
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but sensors do fool!

you arent the youngest anymore....mydadstt or whatever his name is is... hes 13
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Old 06-01-2004, 09:57 PM   #7 (permalink)
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my dad said the same thing about uphill down hill thing. And the answer is no. i fill up anywhere its cheap i dont stick to just shell but i filled up shell a couple of times.

floater sensor? how can i check up on that?

i mean the whole idea of it is correct. when i fill up the tank it does go up the normal way it should. But i can only see the real gas only when i'm parked for a while like an 30 min period
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Old 06-01-2004, 10:06 PM   #8 (permalink)
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the whole in-tank unit has a floater, this raises and lowers according to the level in your tank... the sensor is in the intank unit as well. when the floater raises, the sensor reads the angle on the rod holding the floater... the sensor should be even (not too sensitive), so that it keeps an even read at all times no matter if you are hitting bumps or going up a hill or whatever... thats why when you fill up the gastank, the gauge goes up slowly, and not instantly... it might be a bad sensor if the level doesnt hold stable... see now...

for a pic of an intank unit go here...
http://www.mkiv.com/techarticles/fue...DualPumps2.jpg
this is from a supra with dual fuel pumps, but ours is pretty much the same
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Old 06-01-2004, 10:11 PM   #9 (permalink)
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oh ok now i understand about the whole in-tank floater but i don't think i can really fix this problem myslef. When i fill up at the gas station it does gradually go up for instants i just filled up from 1/4 so i drove back home about 15 min trip when i got home the tank was at 1/2. after about 4 hours i went back to just check on the tank and it was really near the 3/4 bar once again.

the floater is toying with me but i guess i can deal with it.
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Old 06-01-2004, 10:52 PM   #10 (permalink)
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its funny cuz i was just gonna ask the same question........i couldn't ignite my car this morning.....and once i did, the meter dropped a lot too....so
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Old 06-01-2004, 11:29 PM   #11 (permalink)
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I wish i could help but i can't, I guess the only thing you should be worrying about is if the gas is leaking or if the gas is wasting about right.
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Old 06-02-2004, 12:21 AM   #12 (permalink)
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my gauge doesn't even move anymore....but it seems like my light is working fine...so i go by that and miles

but my gauge blows nuts in my camry....
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Old 06-02-2004, 12:31 AM   #13 (permalink)
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my gauges does exactly the same thing,
it decides to jump up and down a 1/4 tank whenever it feels like it

personally im too lazy and cheap to get it fix (if it can be fixed) but it would be nice to know if it can be fixed or not
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Old 06-02-2004, 08:20 AM   #14 (permalink)
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Quote:
Originally posted by Zoni_Camry
but sensors do fool!

you arent the youngest anymore....mydadstt or whatever his name is is... hes 13
yeh, That sucks, i need to think of somethin new....

That kid is mad post whoring...In o/t hes made like 2 threads on his first day...and he has like 10 posts and hes posted on most of the threads in o/t...
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Old 06-02-2004, 08:55 AM   #15 (permalink)
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mine does it by about an 1/8th of a take only if i rev her up high for a little while .... the fule system in that car seems to be able to hold a good bit of extra gas when it increases pressure when the engine is running high ... also i think the gas goes back from the return lines and the pressure droping.... try drving granny style and see if it still does it
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