Medium and Heavy Trucks
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Hi I'm Wayne
I will help you with this
is this a electronic engine ??
Thank you for that
best thing that you do to get more power
is replace the the fuel button inside the pump
P/N is N17 140417 about $25.00
I hope this helps you
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Not the Poor/Bad service.
In the injector pump
google that number I gave you
and you will see what it looks like
the rear housing needs to be removed
This is for a 855, but what it looks like click here
Yes they come stock with # 10,
#17 will give it more fuel, on hills
That is OK,
But that is the way it was to me ............
most injection pump shops have or order them