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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 rebuilt the Engine, an after rebuilt, the turbo dosent
I rebuilt the Engine, an after rebuilt, the turbo dosent work right. with engine brakes, it put out 40psi. when pulling at 1400rpm its at 30psi. and at 1500rpm its at 28psi. and at 1600rpm its at 26ps… read more
Wayne
Wayne
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Vocational, Technical or Trade Scho
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We have a 2009 mack vin# ***************** Model chu613 we
We have a 2009 mack vin# ***** Model chu613 we are trying to fix a low boost problem it will not build more then 17 psi of boost we had low fuel psi around 70 75 psi changed filter housing injectors a… read more
Mike Mcmillan
Mike Mcmillan
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I have a 2004 C-15 Acert Single turbo conversion Peterbilt
I have a 2004 C-15 Acert Single turbo conversion Peterbilt 379. Recently I have been getting a vibration in the truck. It is most prevalent under load and in gears 16th to 18th. Engine runs rough at R… read more
Cat Man
Cat Man
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Vocational, Technical or Trade Scho
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I have a cat that falls on its face once its under a load
i have a cat that falls on its face once its under a load they found turbo was bad replaced found injector orings were bad replaced and air to air had a hole each time somethings replaced it gets bett… read more
Cat Man
Cat Man
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Vocational, Technical or Trade Scho
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2006 c8500 gmc cat c7 wax won't past 1000 rpm under load.
2006 c8500 gmc cat c7 wax won't past 1000 rpm under load. Fuel pressure 70-100 psi iap 3800psi… read more
Cat Man
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Vocational, Technical or Trade Scho
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2000 Kenworth with Cummins n14. very low boost. when CAC
2000 Kenworth with Cummins n14. very low boost. when CAC system is tested with intake makifold hose still hooked. i lose all my air from around the head gasket on the brakes compressor. how is that po… read more
Mike Mcmillan
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On a 2005 cat c15 acert engine the vva were deleted in the
On a 2005 cat c15 acert engine the vva were deleted in the new program can they be removed… read more
Cat Man
Cat Man
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Vocational, Technical or Trade Scho
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2008 Beaver Contessa with Cat C9 engine will not accept
2008 Beaver Contessa with Cat C9 engine will not accept throtle advance smokes heavy black smoke and dies,idles ok. … read more
Cat Man
Cat Man
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Vocational, Technical or Trade Scho
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Cat Man, I have a 3406 3ZJ54893 that pulls strong until
Cat Man, I have a 3406 3ZJ54893 that pulls strong until about 1600-1700 rpms then just slowly pulls to 2000 rpm. We changed the fuel filters but that didn't change anything. Where should I go next? Al… read more
Cat Man
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3406 turbo flutter under load at lower Rpm? When not loaded
3406 b turbo flutter under load at lower Rpm? When not loaded heavy and pulling steep grade will build and maintain boost >25psi at higher rpm 1800 for example. No noticeable miss at idle.… read more
Cat Man
Cat Man
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Hallo Cat man, We have some problems with a C9 engine. It
Hallo Cat man, We have some problems with a C9 engine. It runs perfectly when no load but not when putting some load ( a turbine ) when engine is at 1800 RPM. The RPM drops a lot when under load. When… read more
Cat Man
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I have a Peterbilt with a c15 acert bxs serial prefix. It started
I have a Peterbilt with a c15 acert bxs serial prefix. It started cutting out the other day and we are trying to figure out why. I have cat et and there are no codes or events. Coolant temp is correct… read more
Daniel Wilson
Daniel Wilson
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i have a 2007 kenworth t800h with a 565 isx high exhaust temp
i have a 2007 kenworth t800h with a 565 isx high exhaust temp 1100 degrees 30 to 40 psi boost when under load but 5 psi when jaking down hill lot of black smoke turbo seems to hesitate then just takes… read more
Daniel Wilson
Daniel Wilson
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My cat 3406B in a 94 kenworth . Serial no 3zj. Its developed
My cat 3406B in a 94 kenworth . Serial no 3zj. It's developed a miss when you first accelerate then the miss clears up. Also low on pulling power. What's your thoughts… read more
Cat Man
Cat Man
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Kenworth T600, Caterpillar C15 engine, turbos are surging,
Kenworth T600, Caterpillar C15 engine, turbos are surging, turbos whine heard and turbos accelerating and decelerating but engine speed stays relatively constant… read more
Cat Man
Cat Man
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we have 2006 freightliner business class M2 with C9 caterpillar
we have 2006 freightliner business class M2 with C9 caterpillar motor. Once it warms up (over 150 degrees) starts to blow heavy white/grey smoke. Worse under load and higher RPM's. No check engine lig… read more
Cat Man
Cat Man
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Vocational, Technical or Trade Scho
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I have a ISM Cumming ser. no. 35152939,it smokes heavy black
I have a ISM Cumming ser. no. 35152939,it smokes heavy black smoke & no power.I have replaced the turbo & Intake boost pressure sensor.It set code 2346,but I think that is because it is not getting en… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
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Meet the Experts:

Daniel Wilson

Daniel Wilson

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I am ASE Master Truck Certified.

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worked on, Gmc, Macks, Freight liner,Mercedes Benz,,Ford, sterling

Jeremy

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Curtis B.

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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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