Medium and Heavy Trucks

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I have a 3406E cat and I have problem with losing power This
I have a 3406E cat and I have problem with losing power This all a did to it new fuel pump, change fuel filter, check for air in the system, all new fuel Houls, fuel pressure at 80, all 6 New injecter… read more
BrentR718
BrentR718
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2013 kenworth mx13 epa 10. Low/slow boost. Takes time to
2013 kenworth mx13 epa 10. Low/slow boost. Takes time to build boost. Truck runs and drives the same loaded or empty. Sometimes it has power, sometimes when the boost issue is really slow, I'll get a … read more
Roy Belding
Roy Belding
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I have a 1995 Freightliner Ft60 with Cummins 8.3l... will
I have a 1995 Freightliner Ft60 with Cummins 8.3l... will not build more than 10 pounds of boost on the road up a hill I just bought the truck. We pulled the turbo of and we closed the waste gate with… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
207 satisfied customers
Having problems with cummins isx 870, 2005. Low power, no
Having problems with cummins isx 870, 2005. Low power, no turbo boost until in 6th gear, then the boost hesitate and sometimes reach 15 psi on the boost and continuous BLACK SMOKE constantly … read more
Jackie Dempsey
Jackie Dempsey
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I have a cat c15 with code number 3719-16 I know this code
Good afternoon I have a cat c15 with code number 3719-16 I know this code means the truck needs a regen. But I have just done a regen and the lights will go away customer will drive unit for about 45 … read more
Cat Man
Cat Man
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I replaced the turbo actuator, intake boost pressure sensor
I replaced the turbo actuator, intake boost pressure sensor and I still don't have power; the boost gauge doesn't go up more than 31psi! … read more
Mike Mcmillan
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I have a isx Cummins 2006, 870. Crate engine, no egr or egr
I have a isx Cummins 2006, 870. Crate engine, no egr or egr cooler. Had a delete kit installed on motor upon installation, used all my externals from previous motor since they were pretty much new exc… read more
Mike Mcmillan
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I have a 1999 kw with a c12 in it. 2ks08096 I did an in
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Cat Man
Cat Man
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We have a n14 celect plus. It was just completely rebuilt.
We have a n14 celect plus. It was just completely rebuilt. New injectors. Runs awesome but no power only 20lbs boost. No black smoke. Check charge air cooler and plumbing. All good no leaks. Checked f… read more
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I have a new crate motor with a wastegate turbo the boost on
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2010 freightliner Columbia, 60 series Detroit with the
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Roy Belding
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I have a 2014 peterbilt 320 with a cummins motor. Today the
i have a 2014 peterbilt 320 with a cummins motor. Today the check engine light was on and it slowly lost power. like the turbo boost isnt kicking in. we had an older cummins have a similar problem and… read more
Eddy
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I have 2008 isx 400st, it keeps loosing power after 4-5 hr
I have 2008 isx 400st, it keeps loosing power after 4-5 hr drive.I get code 0125 (intake manifold psi- data valid but below normal range) 2288 - turbocharger speed ( data valid but above normal range)… read more
Daniel Wilson
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2007 ISX CM871 high exhaust temp and black smoke when foot
2007 ISX CM871 high exhaust temp and black smoke when foot in throttle. Truck seems to be down on power some. May not be but I don't think it has the power it should. Can I get some trouble shooting h… read more
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I'm working on a 11 maxxforce dt 9/10 215 HP! I'm an
I'm working on a 11 maxxforce dt 9/10 215 HP ! I'm an experienced mechanic but this one has me stumped !! I don't have a lot of experience with the maxxforce! So the truck is in derate and the only co… read more
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Are you familiar with cummins ism? Im having a problem with
Im having a problem with my truck so what do i do? I dont know how this works … read more
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I have boost pressure code shows no boost pressure on gauge.
I have boost pressure code shows no boost pressure on gauge. when I shut truck off and restart code goes out with in seconds and all is normal I drive 5 to 10 miles same problem I change sensor checke… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,700 satisfied customers
I am working on a sdp acert engine. Turbo boost not reaching
I am working on a sdp acert engine. Turbo boost not reaching max. Sometimes it will reach 40psi and drop back to about 32 psi… read more
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Meet the Experts:

Daniel Wilson

Daniel Wilson

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Curtis B.

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Technician turned service manager on multiple lines of trucks and engines, used in industry.

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Chris (aka-Moose)

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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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