2004 D5 high fuel rail pressure

Sandgrounder007 · Dec 30th, 2021, 16:55

Hi, my trusty V70 is giving trouble. I’ve got the “urgent engine service required “ message, and P00088 code. The engine starts but is VERY noisy (knocking). The problem disappeared after a fuel filter change last week then returned a couple of days ago. I cleared the code and all was well, fuel pressure good, until this morning, noise, message and 2k rpm limit all returned. The fuel pressure was 180000(kph?) then after about 30 seconds running it cleared and is fine. However I expect it to return tomorrow morning. Is there a pressure relief valve, or something similar on the fuel rail that’s perhaps sticking? If so is it on the passenger end, the banjo bolt arrangement thing?
I’ve searched the Diesel engine forum for about ten pages and not found a similar problem but I’m sure I can’t be the first. Please HELP.

5cilinder · Dec 30th, 2021, 18:45

There is a fuelpressure regulator on the end of the fuelrail you can check it for resistance.... but its better to monitor the pressure with vida or torque

Dec 30th, 2021, 16:55	#1
Sandgrounder007 New Member Last Online: Apr 9th, 2024 22:26 Join Date: Nov 2018 Location: Southport	2004 D5 high fuel rail pressure Hi, my trusty V70 is giving trouble. I’ve got the “urgent engine service required “ message, and P00088 code. The engine starts but is VERY noisy (knocking). The problem disappeared after a fuel filter change last week then returned a couple of days ago. I cleared the code and all was well, fuel pressure good, until this morning, noise, message and 2k rpm limit all returned. The fuel pressure was 180000(kph?) then after about 30 seconds running it cleared and is fine. However I expect it to return tomorrow morning. Is there a pressure relief valve, or something similar on the fuel rail that’s perhaps sticking? If so is it on the passenger end, the banjo bolt arrangement thing? I’ve searched the Diesel engine forum for about ten pages and not found a similar problem but I’m sure I can’t be the first. Please HELP.

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Dec 30th, 2021, 18:45	#2
5cilinder Premier Member Last Online: Apr 16th, 2024 21:09 Join Date: Oct 2011 Location: Groningen	There is a fuelpressure regulator on the end of the fuelrail you can check it for resistance.... but its better to monitor the pressure with vida or torque

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