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2000 Seville STS
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7 Posts
Discussion Starter · #1 ·
I bought a 2000 Seville and did a HG replacement. Once it was all back together and good to go I made sure to add 5 gal of premium to the tank so I knew it had fresh gas. (the gauge was low/empty when I bought the car and wasn't sure how long it had sat...) I was taking it for a drive (bout 5miles round trip) and as I was coming back to the shop it suddenly died on the driveway of the shop.
It suddenly said "fuel level low" on the display and the gas gauge said empty. I knew it had gas but just to be sure I got another 5gal of prem and put it in. When I turned the key on again it said it had a half tank. So i started it and drove back into the shop.
I couldn't get it to do this in the shop again so I figured i would take it on the road again and see what happened. I got bout 1 mile away and it did the same thing again, and when I went to start it the starter would not engage.
I tried tapping on the tank to see if it was a loose wire or something and it started again and I started back to the shop, but it took 5 starts to get back to the shop.
I have opened the access panel in the trunk and disconnected/cleaned/reconnected all the connectors on top of the fuel tank and it is still doing the same thing.

I'm not sure where to start with this one, it is still intermittent....
I know that there are 2 different level sensors in the tank, plus the pump. I didn't see in the manual what the fuel pressure should be but I really don't think that the pump is the problem here because when ever it thinks it has gas the pump runs. I think I have boiled it down to a sensor.

Is the car programmed to not run the starter when there is no gas so that you don't hurt the starter?

Sorry I know its a lot of info and a small book :( Any help would be appreciated.

Let me know if you need some other info to help with this and I will try and get the info posted.
 

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Super Moderator
2010 DTS
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88,475 Posts
when I went to start it the starter would not engage.
Bad battery, cables or starter solenoid. It is not a fuel problem, it's electrical.

Is the car programmed to not run the starter when there is no gas so that you don't hurt the starter?
No.
 

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Administrator
2002 F55 STS, 2014 Explorer XLT, F-150s
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74,632 Posts
The fuel pump module includes two "sensors" - the fuel level float/variable resistor and the fuel tank pressure sensor, part of the EVAP/emissions system.

The fuel level variable resistor may be dirty or just plain worn out: some models were prone to the level sensor contact arm losing tension and thence failure. It is a replaceable item - about $110 at www.rockauto.com and you're lucky - there's an access hatch in the trunk floor forward of the spare tire well. Retainer and gasket rings. No sparks !!! (If the car has been sitting for a while with low fuel there's a chance that the level sensor is sulfated - pour in a 20 oz. jug of Chevron TECHRON and fill with Chevron, Shell, or Texaco 93 octane and see if that "wakes up" the fuel level sensor. Google "top tier gasoline" to find out why.)......and the fuel level sensor won't shut down the engine - only low fuel level. Normal fuel pressure for our engine is 43 - 47 psi measured at the Schrader valve test port on the rear fuel rail, engine idling.
 
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