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Old 04-24-2011, 12:41 PM   #1
Gulf SV
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Default fuel gauge stuck on empty

Fuel gauge is stuck on empty after I fueled up a couple of days ago. It was a pretty miserable night, and I can't remember if I shut the truck down when I fueled. Everything was good before the refueling, and I've run several restarts since then. Anyone have an idea? Thanks.
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Old 04-24-2011, 01:26 PM   #2
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Default Re: fuel gauge stuck on empty

FWIW. I fueled up with the engine running once. It took quite some time for the gauge to actually work itself up to the full mark, but fueling with the engine on didn't cause it to stick at empty. I figured the delay to get to full was related to a dampening circuit. Good luck. vic
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I can't remember if I shut the truck down when I fueled.

...
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Old 04-24-2011, 02:25 PM   #3
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Default Re: fuel gauge stuck on empty

Nothing special about the Sprinter fuel gauge. It is a variable resistor wired between pins 1 and 10 of C1 on the instrument cluster. Maybe a wire is disconnected??
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Old 04-24-2011, 05:32 PM   #4
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Default Re: fuel gauge stuck on empty

Thanks. I'm back home now, so maybe I'll take a look. I figured maybe a float level got stuck since I ran it right to empty. Guess I'll unload and find a bumpy road first, then look into the instrument panel. i did refuel when i got back into town, but the gauge still indicates empty. Oh, how I dislike coincidences.

Edit: I just looked through the service manual, and it appears that this might be a DAD issue. A good place to start...
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Last edited by Gulf SV; 04-24-2011 at 06:06 PM. Reason: more info
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Old 06-05-2011, 02:38 AM   #5
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Default Re: fuel gauge stuck on empty

Well, I was kind of slow getting around to this issue, and I'm still looking for some help before I tear deeply into it. The fuel gauge is tuck on empty and the low fuel light is on. The tank is definitely not empty. I ran a diagnostic with my DAD, and there is no indication of an issue.

Has anyone else experienced this? any thoughts to share before I decide to drop the tank? Many thanks ahead of time to the problem solvers out there.
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Old 06-05-2011, 03:43 AM   #6
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Default Re: fuel gauge stuck on empty

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any thoughts to share before I decide to drop the tank?
...
Kevin,
No experience because mines been working fine so far. Here's some info which may help. It's probably worth checking for resistance back to (from?) the sending unit before dropping the tank. Fig. 121 shows an earlier model without fuel pump. Note the comment about open circuit in the wiring. Good luck. vic

Edit: The float could be stuck? What about trying a rubber mallet bumped up onto the bottom of the tank just under the sending unit? The plastic tank will flex and maybe send a wave of fuel up into the float. This is a guess.


141AmbTempSensorFuelGauge.jpg

142FuelGaugeChart.jpg
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Old 06-05-2011, 04:21 AM   #7
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Default Re: fuel gauge stuck on empty

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Originally Posted by Aqua Puttana View Post
Edit: The float could be stuck? What about trying a rubber mallet bumped up onto the bottom of the tank just under the sending unit? The plastic tank will flex and maybe send a wave of fuel up into the float. This is a guess.
I'm a big fan of "percussive maintenance". If it isn't working, hit it hard with a hammer. If it doesn't work after that, time to take it apart and fix what you just broke, and hope at the same time it fixes what was wrong in the first place.
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Old 06-05-2011, 07:06 AM   #8
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Default Re: fuel gauge stuck on empty

My fuel gauge only goes up to 3/4 full with a 95 liters fillup, stays at 3/4 'til 3/4 full then descends slowly like a Sprinter does, to empty when 95 liters are burned up.
I'm puzzled, but it's better than not knowing when it's empty!
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Old 06-05-2011, 12:59 PM   #9
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Default Re: fuel gauge stuck on empty

Heading northbound I-190. Grand Island Bridge which is only one lane each way because the other bridge is down for maintenance. Just about to the top with my 1974 full size Dodge when I sputter to a stop. Traffic backs up behind. Fuel gauge is about 1/3? No restart.

I go back to see if I can get nudged up over the top of the bridge. What I see right behind is a little old lady just peering over the top of her steering wheel with both hands clenched tightly on the wheel. Scratch that plan.

See the on-station tow truck at the bottom start to mobilize. I'm thinking a $100.00 tow and I'm cheap. Open the driver door, push on the van and feel it rock a bit. Reach in, put shifter to neutral and proceed to slowly push that van up over the rise, jump in, roll down, hit the traffic light yellow, cross over and just barely roll to the open gas station pump. Crisis averted. How lucky can you get?

Quote:
Originally Posted by NelsonSprinter View Post
...
I'm puzzled, but it's better than not knowing when it's empty!
You can take that to the bank. If only my gauge had stuck full or MT, maybe I would have noticed.

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Originally Posted by Colorado_Al View Post
I'm a big fan of "percussive maintenance".

...
It's a science. This is just part of the hammer inventory I keep in my lower toolbox drawer.

Hammers.jpg

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"My opinion and worth everything you'll never pay for it." is expressly implied.
Keeping me on topic will be as successful as herding cats.
Anyone can hold the helm when the sea is calm. Publilius Syrus
"There are only 10 types of people in the world: Those who understand binary, and those who don't." HaWiiLuVeR
Some people have 10 years experience, others just 1 year 10 times.
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Old 06-05-2011, 07:10 PM   #10
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Default Re: fuel gauge stuck on empty

sometimes it takes a few miles for my fuel gauge to bounce back all the way to the full level, but it sounds like yours may be electrical
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