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2009 chev c6500 7.8 duramax lock of power to drive

Customer Question
2009 chev c6500 7.8 duramax lock of power to drive
Submitted: 2 years ago.Category: Medium and Heavy Trucks
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Answered in 8 minutes by:
2/2/2016
Technician: Wayne, Journeyman replied 2 years ago
Wayne
Wayne, Journeyman
Category: Medium and Heavy Trucks
Satisfied Customers: 11,305
Experience: worked on, Gmc, Macks, Freight liner,Mercedes Benz,,Ford, sterling
Verified

Hi I'm Wayne

I will help you with this

do you have a turbo charger

Let me know ,Please

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Customer reply replied 2 years ago
it is but tech. said truck has no acceleration what so ever. feels no fuel coming in.
please let me know that diagnostic procedure.
Customer reply replied 2 years ago
Hello Wayne,
Technician: Wayne, Journeyman replied 2 years ago

Hi

Sorry for delay , had to pick up Grand Kids in pouring rain at school

My thoughts are that you have not turbo boost

check all the piping to the turbo, and remove the inlet side of turbo hose

ENGINE OFF, AND CHECK TURBINE WHEEL FOR PLAY , up/done side /to side

I hope this helped you

Hi if this helped you

Please rate my answer 3 or more stars

If you need more info, use request button

Not Poor/Bad service

Wayne

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Customer reply replied 2 years ago
This truck goes only 10 miles hr and almost not moving by pedal at all.
Technician: Wayne, Journeyman replied 2 years ago

HI

Thank you for that

OH,OH,OH that was a missing key answer, I thought it was

sluggish on the road , no power

then yes it is a fuel issue, most likely is the transfer pump

have Mechanic check fuel pressure at the 1st filter

if low, replace the pump, if ok, then it is the injection pump,

which would need to be rebuilt,

I hope this helped you

Hi if this helped you

Please rate my answer 3 or more stars

If you need more info, use request button

Not Poor/Bad service

Wayne

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Customer reply replied 2 years ago
Thanks, ***** ***** know the pressure of fuel from the transfer pump.Thanks.
Technician: Wayne, Journeyman replied 2 years ago

Hi

Yes you need between 10-12 lbs after the transfer pump

Hi if this helped you

Please rate my answer 3 or more stars

If you need more info, use request button

Not Poor/Bad service

Wayne

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Customer reply replied 2 years ago
Good morning Wayne,
This truck is 7.8 duramax and there is no lift pump. can you provide me how to diagnose.
Customer reply replied 2 years ago
Posted by JustAnswer at customer's request) Hello. I would like to request the following Expert Service(s) from you: Live Phone Call. Let me know if you need more information, or send me the service offer(s) so we can proceed.
Technician: Wayne, Journeyman replied 2 years ago

Hi

Thank you for that

Sorry I was thinking the power stroke

what about the fuel pressure regulator , checked or replaced

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Customer reply replied 2 years ago
Can you please provide me for diagnostic procedure instead of replaceing part first?????Peter
Technician: Wayne, Journeyman replied 2 years ago

Hi

I'm Sorry , I thought you had someone working on this

here is troubling shooting the fuel system it is the same as 7.8L

Click here

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Wayne, Journeyman
Category: Medium and Heavy Trucks
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Experience: worked on, Gmc, Macks, Freight liner,Mercedes Benz,,Ford, sterling

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