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07 sprinter fuel pressure bleeds down directly after

Customer Question
07 sprinter fuel pressure...

07 sprinter fuel pressure bleeds down directly after shutting off and makes hissing noise, long crank to restart

Mechanic's Assistant: How many miles are on the vehicle? And when was it last serviced?

250000 fresh fuel filters, problem started before filters changed

Mechanic's Assistant: Are you fixing your Sprinter yourself? What have you tried so far?

Yes, nothing, trying to figure out first

Mechanic's Assistant: Anything else you want the mechanic to know before I connect you?

I don't think so

Submitted: 4 months ago.Category: Dodge
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Answered in 31 minutes by:
11/29/2017
Dodge Mechanic: Steve, Automotive Expert replied 4 months ago
Steve
Steve, Automotive Expert
Category: Dodge
Satisfied Customers: 25,398
Experience: Automotive Expert
Verified

hi, what is the vin of the vehicle?

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Customer reply replied 4 months ago
Wd0pf445975149957
Dodge Mechanic: Steve, Automotive Expert replied 4 months ago

Please do not forget to click a positive rating as this is the only way I receive credit for my answer, thank you

okay, this is going to be either leaking fuel injectors or a failed fuel pump check valve

you should pull the plugs and look down into each cylinder to see if any piston tops are cleaner than the others. if any are clean on top, this indicates a leaky injector on that cylinder.

if none are clean, then the fuel is draining back into the fuel tank due to a faulty fuel pump check valve which will require the pump be replaced.

Please let me know if you have further questions. Please do not forget to click a positive rating as this is the only way I receive credit for my answer, thank you. Best wishes with your vehicle.

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Customer reply replied 4 months ago
Plugs?
Dodge Mechanic: Steve, Automotive Expert replied 4 months ago

sorry, was thinking in a petrol mindset for some reason. the cause would still be injector or fuel pump. apologies

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