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Matt
Matt, Engineer
Category: Volvo
Satisfied Customers: 21494
Experience:  Mechanical Engineer with 20 years experience in the auto industry, 8 yrs in formula 1 engine testing
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Fuel doesn't build up in my glass fuel filter on 2009 volvo

Customer Question

Fuel doesn't build up in my glass fuel filter on 2009 volvo D 13 engine. Hard to start.
Submitted: 10 months ago.
Category: Volvo
Expert:  Matt replied 10 months ago.

Hello

1st worth considering fitting a new fuel filter as if only slightly blocked this can lower fuel supply pressure and choke the main pump, the pump will be more sensitive to this when its cold as diesel thickens considerably with low temperatures.

and it may have developed an air leak on the fuel supply pipe from the tank to the engine. The engine has no separate lift pump and relies on the built in one in the injection pump. If a leak has developed on the fuel suction pipe then air entering the system will air lock the pump.
Try pumping up the fuel using the hand pump in the engine bay on the filter housing, then crack off / loosen each injector pipe in turn while cranking the engine and getting an assistant to operate the primer. This will expel air from the injection side and the engine should fire up. The problem will be cured by checking the supply pipe along its length for signs of leakage and repairing any you find.

If you daub each pipe joint with heavy grease and the issue goes away then wipe the grease away one at a time to highlight the problem joint

Customer: replied 10 months ago.
I will pass info to my mechanic, thx!
Expert:  Matt replied 10 months ago.

no problem

just get back to me on this post

Expert:  Matt replied 9 months ago.

Hi

do you still need help?

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