Home > Technical (L322) > Fuel shows empty, car cuts out. |
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cass Member Since: 12 Oct 2011 Location: northumberland Posts: 730 |
It will probably be poor connections on the sender unit inside the Fuel tank - lots of us on here have suffered from it
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28th Jan 2023 3:31pm |
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MND Member Since: 28 Jan 2023 Location: Cumbria Posts: 15 |
I did find lots of info. in the electrics section, but no one seems to have a problem with the engine cutting out. |
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28th Jan 2023 3:42pm |
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mjdronfield Member Since: 04 Nov 2011 Location: Derbyshire Posts: 7788 |
The engine will be shut down automatically if the ECU detects no fuel, so whilst I’m no expert, I’d hope that sorted itself once you got the gauge to read correctly.
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28th Jan 2023 3:48pm |
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MikeO Member Since: 02 Jan 2018 Location: The Cotswolds Posts: 516 |
Depends on the MY I think. Or perhaps 3.6 vs 4.4. My 3.6 seemed to be fine until I fixed the dodgy connections but I've seen others post about the engine cutting out.
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28th Jan 2023 4:18pm |
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MikeO Member Since: 02 Jan 2018 Location: The Cotswolds Posts: 516 |
I also recall someone posting a temporary fix by fitting a variable resistor across the connector on the top of the tank. Worth a search. 2016 Skoda Octavia VRS Estate
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28th Jan 2023 4:19pm |
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Jayk69 Member Since: 08 Feb 2018 Location: Daventry Posts: 601 |
Yup i had this on my 4.4TDV8 if fuel gauge says no fuel then engine will cut out and the pumps will stop pumping to save themselves from burning out as the diesel is the lubricant too.
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28th Jan 2023 4:24pm |
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MND Member Since: 28 Jan 2023 Location: Cumbria Posts: 15 |
Thanks for all your helpful replies. Unfortunately the tank is almost full, but I'll try going over the wiring in the next few days & report back. |
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28th Jan 2023 7:01pm |
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mjdronfield Member Since: 04 Nov 2011 Location: Derbyshire Posts: 7788 |
Yes, but if the gauge says it’s not, the car will believe the gauge…..
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28th Jan 2023 7:22pm |
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Phoenix Member Since: 16 May 2022 Location: Gone Posts: 1631 |
As MJDronfield has said, the fuel measurement is what the ECM takes as gospel - including the forced misfire (known as 'driver inducement') before shutdown to prevent damage to the fuel system. Unfortunately if the tank is full, you're probably going to get your arms wet...
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28th Jan 2023 7:32pm |
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Jayk69 Member Since: 08 Feb 2018 Location: Daventry Posts: 601 |
reading the comments after mine just to add mine did read a level i used to get 1/4 tank on fuel gauge when tank was full!! 2012 Vogue 4.4 TDV8 - Current
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30th Jan 2023 10:53am |
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MND Member Since: 28 Jan 2023 Location: Cumbria Posts: 15 |
Finally found time to take a look at the problem. I disconnected the black connector block , blue & black wires,& sprayed the contacts with Servisol but to no avail. Next I chopped out the connector & soldered the wires together & shrink tubed them. Bingo! All was well with the world, & I didn't thankfully have to drain the tank which was full.
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4th Feb 2023 11:36am |
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mjdronfield Member Since: 04 Nov 2011 Location: Derbyshire Posts: 7788 |
Nice one. At least you can drive it now.
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4th Feb 2023 2:14pm |
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briangunn Member Since: 19 May 2019 Location: London Posts: 56 |
Lucky, as taking out the in-tank sender unit connectors is a bloody messy job and not one I want to repeat ever ever again. I did mine in January, with 2/3 of a tank full - the diesel was f***ing freezing on the arms. |
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6th Feb 2023 8:18pm |
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MND Member Since: 28 Jan 2023 Location: Cumbria Posts: 15 |
Yes, I have to say I was very surprised when it worked. I was getting ready to pump out the tank. What really pi**ed me off, apart from having to wait for nearly five hours for the bloody RAC to get their act together & get me a tow truck, is Land Rover using a completely unnecessary crappy little connector, when they went to the trouble of building in a protection for the pump running dry. |
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7th Feb 2023 12:23pm |
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