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GMC 7500 with a C7 CAY VIN# KAL77538 someone else did one
GMC 7500 with a C7 CAY VIN# ***** someone else did one piston and liner and re ringed the rest, put 5 used injectors in... truck runs rough and smokes like crazy, no blow by noticeable,, we checked fu… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,530 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
7,512 satisfied customers
Dr cummins I have a Cummins ISX 7932036. I need to know what
Dr cummins I have a Cummins ISX(###) ###-#### I need to know what liner protrusion should be. Also need to know how to perform a snap acceleration test for ISX ESN-79292515… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,351 satisfied customers
I have a problem with isx15 cm2250. After starting the
Hi, I have a problem with isx15 cm2250. After starting the truck, runs for 5 secondsand then it starts to missfire and blow alot of white smoke from exhaust. Cylinder cut out test performed first 3 cy… read more
Roy
Roy
shop foreman
Associate Degree
4,583 satisfied customers
C13 put in injector 4,5,6 fmi 5 on code come out on hand
c13 put in injector 4,5,6 fmi 5 on code come out on hand held … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,530 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
1,351 satisfied customers
I have a cummins isx ser # 79391908.It has a problem with a
I have a cummins isx ser # ***** has a problem with a miss on codes presant. I have preformed a cyl preformance test said #6 fail cyl cut out test no change on #6. I replaced #6 injector adjusted over… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
7,512 satisfied customers
Have a 2006 14L runs like it is on 2 or 3 cylinders. Ran the
Have a 2006 14L runs like it is on 2 or 3 cylinders. Ran the cylinder cut out test. Pulse widths ranged from 9.6-12.4. Baseline is 9.34. installed new injector harness, no better. Tried a known test E… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,243 satisfied customers
I have a BXS C-15 acert. I bought the truck used and didn't
hello i have a BXS C-15 acert. I bought the truck used and didn't have any problems with the truck for a month or so. and then the engine started running rough. I have checked the manifold temp. when … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,530 satisfied customers
I have a 2001 freighliner century with a cummins n14 red
I have a 2001 freighliner century with a cummins n14 red top. I am being tild it idles too high (800rpm) and that it is supposed to be at 650. How do I lower it?… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,351 satisfied customers
Helloi have a 2009 freightliner with series 60, and having
hello i have a 2009 freightliner with series 60, and having issues with truck runs good at idle and second you bump up your rpm with foot or cruise starts to surge or lope all the way upto 2000rpm, if… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
7,512 satisfied customers
I have a 2011 Cummins ISX with what seems to be a misfire at
I have a 2011 Cummins ISX with what seems to be a misfire at idle. The truck shakes like its misfiring but when I do the cylinder cutout test with Insite all the cylinders work properly. I did have a … read more
Expert
Expert
Hi I have a 98 Pete with a celect plus N14. Unit is missing
Hi I have a 98 Pete with a celect plus N14. Unit is missing on #6 cylinder while idling. Replaced injector but issues remains. Using insite once you start the cylinder cutout test the engine runs perf… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,351 satisfied customers
My isx cummins will not rev past 1600 rpm and shakes terribly
My isx cummins will not rev past 1600 rpm and shakes terribly at 55 mph. (Unless my foot is to the floor on the acceleration, then it will not shake hardly and speed up to 70-75)… read more
Geoff
Geoff
BS
8 satisfied customers
Ive been having an intermittent problem (for the last 6 months)
I've been having an intermittent problem (for the last 6 months) with my 1999 Freightliner Century. It has a 370hp Cummins ISM. Every time I make a repair. It runs fine for a week or so then the probl… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,351 satisfied customers
we have a 2004 Pete with ISX, when you start it up {cold or
we have a 2004 Pete with ISX, when you start it up {cold or warm} it will run smooth for 35 seconds then run really rough. we have tried an ECM, checked fuel pressures, eliminated TVG sensor, we are r… read more
spankyjr1
spankyjr1
Retired
Vocational, Technical or Trade Scho
697 satisfied customers
hey Cat Man. In regards XXXXX XXXXX 04 C7. Switched out the HEUI
hey Cat Man. In regards XXXXX XXXXX 04 C7. Switched out the HEUI pump. Better idle but wont go over 5mph or so. Smoking like a freight train. Ran cylinder cutout test. Def has some bad injectors which… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,530 satisfied customers
working on a 2004 International 4300 with EGR. First came in
working on a 2004 International 4300 with EGR. First came in for low power. Ran diagnostic and found #1 injector misfire. Replaced Injector and seemed to fix problem. Truck came back with low power ag… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
254 satisfied customers
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Daniel Wilson

Daniel Wilson

7,512 satisfied customers

Owner at DJ Wilson

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Cat Man

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I am ASE Master Truck Certified.

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Jeremy

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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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