new strange gas gauge behavior

Prius Maximus · 01-19-2005, 10:55 PM

I filled up a few days ago. I was down to 3 bars. I squeezed 5.2 gallons into the tank. THE GAS GAUGE NEVER SHOWED FULL. It was 1 bar short. I figured ok, it's just one of those things. It was very cold out at fillup (7 degrees).

So I filled up again today at 2 bars. I really squeezed the juice in to make sure I got a full tank. Temp was about 20 degrees. Same thing. 1 bar short of full. So I drove the remaining 45 miles to work, and what happens? The gauge moves up to full AFTER 40 MILES. ????? Driving home, it lost the 1st bar after about 20 miles.

Anybody else notice anything like this? Is it the cold preventing the bladder from fully expanding? I have never seen this before, but I got Sparky in March and this is the coldest weather she's seen. No, I have not had the gas gauge/filler pipe TSB done, although I have received a notice that I'm included.

tomdeimos · 01-20-2005, 08:57 AM

No idea why, but it has happened with my car too at least once.
And it was on a cold fillup day.

01-19-2005, 10:55 PM	#1
Prius Maximus Senior Member Join Date: May 2004 Location: Northeastern IL Posts: 194 My Car: 2004 Prius Package: #9 Nominated 0 Times in 0 Posts TOTM Awards: 0 Friends: 0	new strange gas gauge behavior I filled up a few days ago. I was down to 3 bars. I squeezed 5.2 gallons into the tank. THE GAS GAUGE NEVER SHOWED FULL. It was 1 bar short. I figured ok, it's just one of those things. It was very cold out at fillup (7 degrees). So I filled up again today at 2 bars. I really squeezed the juice in to make sure I got a full tank. Temp was about 20 degrees. Same thing. 1 bar short of full. So I drove the remaining 45 miles to work, and what happens? The gauge moves up to full AFTER 40 MILES. ????? Driving home, it lost the 1st bar after about 20 miles. Anybody else notice anything like this? Is it the cold preventing the bladder from fully expanding? I have never seen this before, but I got Sparky in March and this is the coldest weather she's seen. No, I have not had the gas gauge/filler pipe TSB done, although I have received a notice that I'm included. __________________ MMIV Driftwood IX - ordered 2/5/04 delivered 03/08/2004 best tank: 60.5 mpg. LT Avg: 52.2 mpg. 141,000 miles as of 11/15/08 2,320 gallons saved, $6,160 gas cost saved compared to Dodge Neon

01-20-2005, 08:57 AM	#2
tomdeimos Join Date: Feb 2004 Location: Lexington, MA Posts: 995 My Car: Package: Nominated 0 Times in 0 Posts TOTM Awards: 0 Friends: 0	Re: new strange gas gauge behavior No idea why, but it has happened with my car too at least once. And it was on a cold fillup day.

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