Quote:
Originally Posted by Mrbrown
I would think that the CPS would be a full time problem and not a starting only.
Another thought is the check valve on the main pump that holds pressure to the rail may not be doing it’s job and allowing the pressure to die off over night hence the fuel supply being lower upon first startup…
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It is quite ok for the pressure to die off overnight , volvo only stipulate that the pressure should hold for 20 mins after shut off to prevent the fuel boiling in the lines on a hot day , causing long cranking on a
hot start ....