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Old Apr 10th, 2021, 18:27   #7
ca2n
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Last Online: Yesterday 13:05
Join Date: Dec 2018
Location: West Midlands
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I have a starting D5 again.

The inlet hose to the HP pump was secured using a new hose clamp but not before:
  • Brimming the inlet line with diesel via a vacuum pump,
  • Blocking off the HP pump inlet and drawing vacuum at return line to test for leaks, and finally,
  • Pulling a vacuum via the return line to force diesel from the (brimmed) inlet line to the HP pump.

I thought I had the system sufficiently primed to have a firing engine from a single turn of the key, but it took 10, see below:



I let it idle for around 10 minutes while double-checking for any leaks, followed by some revving. I also stopped and restarted the engine a few times.

I'm still convincing myself to take it out, will report back later.

Here's hoping that the non-starting issue was leak-related and nothing else and that my HP pump is still serviceable.

Thank you, everyone, for your help.
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2004 XC90 D5 SE Geartronic
195000 miles
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