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1995 freightliner fld with Cummins M11 ESN 34752041 fuel…

1995 freightliner fld with Cummins...
1995 freightliner fld with Cummins M11 ESN 34752041
fuel pump was leaking where both housings meet. so decided to exchange it for a rebuilt unit from an injection shop. well i installed it, made sure the spider/star gear was on it before installation, tighten everything down. well now when i go full throttle, it gets to about 1500-1600 rpms. once i let pedal go, it drops and the truck cuts off like if the key was pulled. itll crank right up after like 5 seconds of cranking. it will idle fine all day long but as soon as you go all high idle and let go it dies again. solenoid on pump is not losing power when it dies.
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Answered in 10 minutes by:
12/6/2018
Technician: Mike Mcmillan, Shop Foreman/Triage Tech replied 3 years ago
Mike Mcmillan
Mike Mcmillan, Shop Foreman/Triage Tech
Category: Medium and Heavy Trucks
Satisfied Customers: 6,615
Experience: Volvo/Mack Master Tech, Certified with Cummins, Eaton, GM, Hino, Detroit Diesel
Verified
Hello, my name is***** am a Cummins certified tech with over 17 years of experience. Please allow me to assist you with your issue.When you exchanged the pump did you have to remove the dampener on the back?
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Customer reply replied 3 years ago
whats the dampener
Technician: Mike Mcmillan, Shop Foreman/Triage Tech replied 3 years ago
That’s on the rear of the pump. It has Allen screws that hold it in
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Customer reply replied 3 years ago
oh no. injection shop took it on back and swapped my fittings and bagged the pump for me .i installed it how i got it
Technician: Mike Mcmillan, Shop Foreman/Triage Tech replied 3 years ago
Okay. As long as that is not leaking at all it’s going to need a pump. These pumps have a internal resivoir inside that when the internal diaphragm is not set right or damaged it only allows part of it to fill up with fuel. That is why when you let off it’s is acting that wayWe see this every now and then with both Cummins remans and aftermarket reman pumps
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Customer reply replied 3 years ago
ok. they told me to bring it back if i think its the pump and they will exchange it again
Technician: Mike Mcmillan, Shop Foreman/Triage Tech replied 3 years ago
Yeah. That will take care of that
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Technician: Mike Mcmillan, Shop Foreman/Triage Tech replied 3 years ago
Would you please rate the assistance I have provided you? 5 stars would be greatly appreciated. Thank you
Mike Mcmillan
Mike Mcmillan, Shop Foreman/Triage Tech
Category: Medium and Heavy Trucks
Satisfied Customers: 6,615
Experience: Volvo/Mack Master Tech, Certified with Cummins, Eaton, GM, Hino, Detroit Diesel
Verified
Mike Mcmillan and 87 other Medium and Heavy Trucks Specialists are ready to help you
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Customer reply replied 3 years ago
ok ill do that tomorrow and install it and get back with you
Technician: Mike Mcmillan, Shop Foreman/Triage Tech replied 3 years ago

Sounds good.

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Customer reply replied 3 years ago
it was still doing it with another pump... i had to send truck off
Technician: Mike Mcmillan, Shop Foreman/Triage Tech replied 3 years ago

Did the pump company go thru the pump again?

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Customer reply replied 3 years ago
they exchanged it. got a call later saying the one they took back tested good
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Mike Mcmillan
Mike Mcmillan
Mike Mcmillan, Shop Foreman/Triage Tech
Category: Medium and Heavy Trucks
Satisfied Customers: 6,615
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Experience: Volvo/Mack Master Tech, Certified with Cummins, Eaton, GM, Hino, Detroit Diesel

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