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LR3 no fuel

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  #1  
Old 03-19-2021, 07:12 PM
DakotaTravler's Avatar
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Default LR3 no fuel

Looks like I have my first real major issue with my LR3, bad fuel pump. Or so I assume, I have not the tools on hand yet to decouple the fuel line to check for flow. 2006 does not have a schrader valve on the rail. But I have confirmed that fuel is not being dumped into the combustion chamber. Pulled a plug and checked for spark, all good. Also the spark plug was dead dry, should not be after all the start cycles I did. Prior to this issues I have had no signs of a weakening fuel pump. Just parked it and after four days of sitting it will not start.

I did check the cam sensors, both read 2.04 ohm. Since they read the same I assume both are okay, I am not sure what they are suppose to read though.

I did jump the fuel pump relay, no help. I had already swapped the relay for another. Readings at the relay with key in II showed 12v on both sides. I still need to investigate the actual wiring going down to the pump. I also swapped numerous fuses for anything engine management and for injectors.

So besides the fuel pump being bad, is there anything else that could cause the injectors not to fire or the pump not to run? I think I covered all I can at this point.

edit: No codes at all with GAP tool.
 

Last edited by DakotaTravler; 03-19-2021 at 08:15 PM.
  #2  
Old 03-21-2021, 09:29 AM
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One guy found wires chewed up by rodents.
 
  #3  
Old 03-21-2021, 10:33 AM
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Funny because that was one theory. I have not dropped the tank yet and won't until I have a fuel pump in hand but besides possible wire damage it would have to be the pump at this point.
 
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Old 03-30-2021, 08:33 AM
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Based on other thread, that you have started, it looks like a wire damage after all, lol.How far from the pump would you say the damage area was? it looks like the culprit point is on the frame accessible via dropped spare wheel without taking the fuel tank down ?
 
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