Just acquired a nice bone stock 98 12v and having issues with the fuel gauge. Drove it 1700 miles home so ran a few tankfuls of fuel through it. Seems to be sending unit related as it does fine till 7/8 tank then dances for a while then holds steady from 3/4 through 3/8 tank then dances again. Can’t find the sending unit in stock anywhere. Are there any options? Retrofit another sending unit or fitment of a fuel tank from an early 24v? 
thanks

vin 3B7KF22D1WG106674

Edited February 8, 20205 yr by Samiam
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1 hour ago, pepsi71ocean said:

I wonder if the sending unit is in the tank correctly. Mine did that and I think it was the way the sending unit was sitting in the tank. I suspect it was cocked or something.

I'l have to check that out.  Of course, the only way to know if it worked is to drive around to see if I engine dies again long before I'm out of fuel.

 

14 minutes ago, dripley said:

When I put my basket back it turned a little tightening the locking ring. I believe the float can hit the side of the tank if not turned parralell with the tank.

The two times my truck has died, I was able to put in less than 30 gallons.  So, it's not that the fuel gauge isn't telling me I have fuel when I don't, it's that the truck sucks air when I go down hill with only 7 gallons in the tank!  Both times I was only a few hundred feet from the diesel pump to which I was heading.

12 minutes ago, LorenS said:

The two times my truck has died, I was able to put in less than 30 gallons.  So, it's not that the fuel gauge isn't telling me I have fuel when I don't, it's that the truck sucks air when I go down hill with only 7 gallons in the tank!  Both times I was only a few hundred feet from the diesel pump to which I was heading.

 

Yea, I bent my sending unit. Empty on E to me is 25 gallons, lmao 1/8th tank is about 23 haha. haven't had an issue since.

Sounds like your fuel pick up is too short. 

Edited February 28, 20205 yr by JAG1

On 2/25/2020 at 3:45 PM, IBMobile said:

@RockAuto has listed themselves in the "Vender & Dealers section of this web site.  I doubt if they ever take the time to see how there company is perceived here since the last time they visited Mopar1973Man was June 26,2017.

For what it's worth, RockAuto  visited my profile on Thursday 2/27/2020 at 2:03 PM.

On 2/26/2020 at 3:05 AM, dripley said:

Sounds like your fuel pick up is too short. 

 

Not really. I bent the sending unit because I had someone return the truck to me on empty and I barely made it to the gas station up the road. I bent the sender and never looked back.

 

Back then empty line was about 31 gallons haha. 

18 hours ago, IBMobile said:

For what it's worth, RockAuto  visited my profile on Thursday 2/27/2020 at 2:03 PM.

  most of time I view profiles by accident, I'm sure that wasn't the case. All though suspicious that they haven't visited for so long and all the sudden they did, must have notifications turned on or have another account.