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Related Medium and Heavy Trucks Questions
Have an issue with a NEW cyl head on ISX cm871 upon start up
have an issue with a NEW cyl head on ISX cm871 upon start up find we have a HUGE amount of combustion pressure in the fuel system . new injectors, new head , engine runs poorly diesel knock , timing i… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
11,541 satisfied customers
I have a n-14 that has an injetor miss on 5 changed injector
I have a n-14 that has an injetor miss on 5 changed injector and pass thru. When I go into test mode on insite hit start it clears up and sounds fine hit stop and it misses again?? … read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,700 satisfied customers
ESN 11808670 Truck arrived at the shop with a severe mis and
ESN 11808670Truck arrived at the shop with a severe mis and was running away. We couldn't perform a cut off test with Insite due to the engine running away. We used a temperature gun, 4, 5 and 6 were … read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,700 satisfied customers
Cummins isx 2010 has a miss #2 cylinder replace overhead
cummins isx 2010 has a miss #2 cylinder replace overhead still miss same cylinder … read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
4,023 satisfied customers
2013 ISX cummins has a hard knock between 1400rpm and
2013 ISX cummins has a hard knock between 1400rpm and 1600rpm but goes away at 1700. Previous owner says it has been there since new. But doesn't sound right to me! What doe you think? … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
11,541 satisfied customers
Cummins isx cm871 injector test leak how to determine a c
cummins isx cm871 injector test leak how to determine a b c from rockers (i can't read any a b c on the crank shaft pulley) for a injector test leak thx… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,700 satisfied customers
Isx cummins intermittent misfire. Isx 600 79283458. Ran
ran insite showed #6 injector pass fail injector replaced… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
11,541 satisfied customers
Got the head back on the ISX but when we road tested the
Got the head back on the ISX but when we road tested the pyro gauge was pegging out. If u let off the throttle it will come back down. Can u help be troubleshoot this issue?… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,700 satisfied customers
We have a 2250 isx. A valve broke off so we removed the head
Hi. We have a 2250 isx. A valve broke off so we removed the head and got it completely rebuilt. We reinstalled the head everything runs perfectly smooth but when you get 20 psi boost you get a really … read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,700 satisfied customers
I have a 2007 isx Cummins that is missing on cly 2, Engine
I have a 2007 isx Cummins that is missing on cly 2 … read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,700 satisfied customers
CUMMINSDR only please i have an ISM esn-35020751 in a Volvo,
CUMMINSDR only please i have an ISM esn-35020751 in a Volvo, its having some kind of ticking/knock/ Slight miss, at about the start of 1750RPMs... i performed an Accelerated Cyl Cutout test and i got … read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,700 satisfied customers
Need help: 02 ISC Cummins runs rough with loud detonation
Need help: 02 ISC Cummins runs rough with loud detonation knock only when outside air is in 60's or less, feels like a strong miss pulls poorly has an 1/2 to 3/4 MPG drop-off. Replaced fuel flow, fuel… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
11,541 satisfied customers
I have an 07 isx I have a miss in the jakes, I have replaced
I have an 07 isx I have a miss in the jakes, I have replaced the soleniods, o-rings, wiring harness, throttle position sensor, and I had the overhead done all to no avail, what could it be… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
11,541 satisfied customers
Cummins ISX 475, CM871, ESN-79190339 Using truckprodemand
Cummins ISX 475, CM871, ESN-79190339 Using truckprodemand from mitchell as a guide Installed used reworked head, new cam bearings etc... Dampner at insert timing pin mark with pin inserted, installed … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
11,541 satisfied customers
I have a n14 lost power, changed fuel filter and still slugash
I have a n14 lost power, changed fuel filter and still slugash at low rpms my fuel milage went south checked turbo spins free smokes at mid range. Tried to cut out injectors and you could here diff on… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,700 satisfied customers
I have a Cummins N14 celect+ 525 hp. I just ran a accelerator
I have a Cummins N14 celect+ 525 hp. I just ran a accelerator cylinder contribution test in InSite and cylinders 5 and 6 failed. Cylinder number 1 has been cut out and RPM change is 162. Cylinder 1 ha… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,700 satisfied customers
Im working on 09 with ISX CM871 WHICH smokes when starts,
I'm working on 09 with ISX CM871 WHICH smokes when starts, shakes and has explosions while idling… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
207 satisfied customers
06 cummins isx lost power going uphill 4-6% grade with a light
06 cummins isx lost power going uphill 4-6% grade with a light load 30-40 mph load 26Klbs it started happening after adjusting the valves per cummins spec.… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,700 satisfied customers
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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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