Stalling/gas gauge problems - Ford Explorer Forum - Forums for Ford Explorer Enthusiasts
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Old 05-05-2017, 10:09 AM   #1
Kdavidson
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Join Date: May 2017
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Stalling/gas gauge problems

Hi everyone, I was hoping you could help me. I bought a 2005 Ford Explorer XLT (with a salvage title) about 6 months ago and within the past month have had problems with it. The fuel gauge wouldn't register that I filled up the gas tank, but would slowly move to full as I continued driving. Recently, though, the car has begun stalling while I've been driving. It's happened twice so far. It hasn't happened on the highway yet (thank God), but at speeds of 30 mph or so. The car starts up fine afterwards. I took it to the mechanic and they checked all of the sensors and said everything was just fine. They couldn't find anything wrong with it.

Well, yesterday the engine light finally came on and is throwing the code P0463 - Fuel Level Sensor Circuit High Input.

Do you think it's safe to say I need to replace the entire fuel pump? I found a pretty good price online for a Spectra Premium SP2075M Fuel Pump Assembly.

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Old 05-08-2017, 09:04 PM   #2
J_C
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Join Date: Apr 2016
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No, it is safe to say that you need a new fuel sender unit due to the problem registering fuel level and the trouble code, but the pump could work fine independent of that problem happening.

I mean it could be the wire to it or corroded connector but the only way to know is inspect that and check with a multimeter as you move the sender float through its range to see if it's varying resistance correctly, or if you see no fault to just replace it and see if that fixed it.

However, yes it is possible your fuel pump itself is failing and causing this, it's a good possibility but I just wouldn't be surprised if it's something else instead. However, with the vehicle now a dozen years old and considering that you have pull the tank anyway to replace the sender, then yes I would replace the fuel pump while you're at it.

For what it's worth, people seem to have better luck with Walbro, Bosch, or AC Delco, and worse luck with Airtex and Spectra. Then again, it could just be that they all have their share of premature failures and it just happened to be that more buyers found themselves on an Explorer web forum to talk about it.
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