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I have a 350 cummins diesel engine in a 1991 international
I have a 350 cummins diesel engine in a 1991 international 8300, and can be driving down the road and suddenly dies but will start right back up, runs and idles fine. Help!… read more
DR.Cummins
DR.Cummins
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High School or GED
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I have a 1988 Cummins NTC-315, cpl 838. How do I go about adjusting
I have a 1988 Cummins NTC-315, cpl 838. How do I go about adjusting the injectors. I do believe they are fix timed not STC.… read more
DR.Cummins
DR.Cummins
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Ford: running fine..i noticed its mixing diesel and coolant
i have a nt855 ford l900. 1971...the truck was running fine but i noticed its mixing diesel and coolant .i took it to shop their change the injector cap o-rings and head gaskets ,their even resurface … read more
Wayne
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Vocational, Technical or Trade Scho
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i own a 350 big cam cummins engine esn..idling..pulley..drive shaft
i own a 350 big cam cummins engine esn 11225354, problem accessory drive, when the truck is idling it making a knocking sound, when i check the pulley of the accessory drive I pull on it and the acces… read more
DR.Cummins
DR.Cummins
FIELD SERVICE TECHNICIAN
High School or GED
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looking for exhaust flow specifications..various rpm..back pressure
I have two engines with the following serial numbers Ser #10670587 & #11163744. These are 855 series (possibly NTC-230's). I am looking for exhaust flow specifications for both engines at various RPM … read more
DR.Cummins
DR.Cummins
FIELD SERVICE TECHNICIAN
High School or GED
2,377 satisfied customers
How can I determine if I have a bad fuel injector pump The
How can I determine if I have a bad fuel injector pump? The Cummins dealer can not take a look at the truck till next Wednesday.… read more
DR.Cummins
DR.Cummins
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High School or GED
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Its holset compress on a model ntc 350 cummins..timing
its holset compress on a model ntc 350 cummins and going to have to take it off do i need to worry about any timing… read more
Diesel Service
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Vocational, Technical or Trade Scho
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88 cummins engine ntc 300 big cam..piston overhaul kit
i have a 88 cummins engine ntc 300 big cam and I need to get piston overhaul kit and dont know where to get it,any idea. I have this additioan information sleeve number(NNN) NNN-NNNNthey are not stand… read more
DR.Cummins
DR.Cummins
FIELD SERVICE TECHNICIAN
High School or GED
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Diff..the ntcc has 2 solenoid on fuel pump, was wondering what it
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JCTech
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I have a Cummins NTC 350 Big Cam 1. I want to replace the accessory
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DR.Cummins
DR.Cummins
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VIN..tube, blows oil all over, on back of motor home,and on tow car
I have an 350 cummins diesel ISC built in 2003,its in a 40 FT mandalay motor home 2004. The VIN last 5, 87594. My problem is the blow by tube, blows oil all over, on back of motor home,and on tow car.… read more
FIX-IT
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My husband has a Cummins 444 in his 88 Peterbilt..radiator
My husband has a Cummins 444 in his 88 Peterbilt. He is having issues with it making heat. He has put a new radiator, thermostats and a bunch of other new parts, but still no heat. I recently read tha… read more
DR.Cummins
DR.Cummins
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fuel feed line coming out of the filter on a nt855 (BC) 299 hp engine
What type of fittings connect the fuel feed line coming out of the filter on a NT855 (BC) 299 HP engine. I am looking for the male and female fitting type/size.… read more
DR.Cummins
DR.Cummins
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I need to find out epa issued engine family numbers for the
I need to find out epa issued engine family numbers for the following engines 1994 cummins 6C8.3 with an unknown engine serial # 1989 cummins DT240 with an unknown engine serial # 1987 cummins NTC 300… read more
DR.Cummins
DR.Cummins
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I need an inframe kit for a NTC 350 but the Inspection plate
I need an inframe kit for a NTC 350 but the Inspection plate is missing are the kits the same?… read more
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I have a Cummins N-14 engine with a cracked front engine cover,What
I have a Cummins N-14 engine with a cracked front engine cover,What are the most common causes for this problem?… read more
Dieseltech57
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Vocational, Technical or Trade Scho
head gasket..1980 cummins big cam i..injectors need to be faceing
Im currently trying to do a head gasket job on an 1980 cummins "big cam" i have no engine serial number so im having a hard time finding valve lash adjustment procedures my other question is their a c… read more
Tim
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Associate Degree
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valve lash, and injector heights on 1990 ntc Big Cam cummins 400
I need to know how to go about setting valve lash, and injector heights on 1990 NTC Big Cam Cummins 400.… read more
DEALERTECH37
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manufacturers certifications
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Chris (aka - Moose)

Chris (aka - Moose)

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Tim

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J.R.

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DR.Cummins

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Don

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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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