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Curtis B.
Curtis B., Technician
Category: Medium and Heavy Trucks
Satisfied Customers: 26026
Experience:  Technician turned service manager on multiple lines of trucks and engines, used in industry.
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I have an ntc 300 big cam that I have already replaced the

Customer Question

I have an ntc 300 big cam that I have already replaced the fuel shutoff valve and still having the no power symptoms. It will crank if I shut the shutoff valve but will not go more than 1/4 mile down the road without losing power and shutting off. The oil pressure at idle is around 20 and the oil light stays on all the time which has stayed on since I bought the truck. Any ideas?
JA: What is the complete model and serial number of your machine?
Customer: Model: NTC-300 Configuration number: D093415 BX02
JA: Anything else you want the equipment mechanic to know before I connect you?
Customer: That should be all
Submitted: 12 days ago.
Category: Medium and Heavy Trucks
Expert:  Curtis B. replied 12 days ago.

Welcome to JUST ANSWER heavy equipment. With years of experience, I look forward to doing my best to help.

Customer: replied 12 days ago.
What do you think could be the problem?
Expert:  Curtis B. replied 12 days ago.

With the Cummins PT fuel system, the injection pump is the fuel transfer pump. From what I gather you are loosing fuel to the system. Best test is to make test line from the injection pump suction, and drop it into the fuel tank filler and run test with tank and outlet bypassed. If the engine runs fine, then you have problem before the pump. If it still faultures, the injection pump has internal problems and will need to be repaired or replaced.

Expert:  Curtis B. replied 12 days ago.

I assume you have replaced fuel filter element with no change!

Expert:  Curtis B. replied 12 days ago.


Customer: replied 12 days ago.
That sounds about like what I was thinking. I will get some fuel hose and run a test. I'll let you know the outcome.
Expert:  Curtis B. replied 12 days ago.


Customer: replied 12 days ago.
the filter has been replaced as well.
Expert:  Curtis B. replied 12 days ago.

OK> Just thought to ask

Expert:  Curtis B. replied 6 days ago.

I see question is still open, how did the test hose work out?

Customer: replied 4 days ago.
Did the test hose and found that the truck had the same symptoms. I took the fuel injection pump off and sent off to have it rebuilt. We will see what happens when it gets back.
Expert:  Curtis B. replied 4 days ago.


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