Medium and Heavy Trucks

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I have a 2006 Peterbilt 379 with a MXS Acert 550hp 1850
I have a 2006 Peterbilt 379 with a MXS Acert 550hp 1850 Torque file. Has 160,000 on an overhaul and since the overhaul seems to me that my pyrometer is running hotter than it should. Since the overhau… read more
NicholasM1019
NicholasM1019
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Vocational, Technical or Trade School
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Man i have a 2004 mbn cat motor im only getting 28 pounds of
Hey cat man i have a 2004 mbn cat motor im only getting 28 pounds of boost is this correct … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,241 satisfied customers
I have a C-7 in a dyno, at !00% throttle & load around 320
I have a C-7 in a dyno, at !00% throttle & load around 320 hp. while monitoring boost pressure I noticed that the readingbounces around very rapidly 21-29 psi, … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,241 satisfied customers
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
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
I have a 2006 kenworth with isx 565 cummins and the turbo
I have a 2006 kenworth with isx 565 cummins and the turbo heats up bad like 1100 degress plus i have already replace the turbo / injector/ acuator controler/ acuatpr and injector cam it heats up on an… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
Got a series 60 engine that was fully rebuilt last year
Got a series 60 engine that was fully rebuilt last year 2015. I took the block to machine shop and they cut the counter bores and shaved the deck. A few months later after assembling engine and pullin… read more
Wayne
Wayne
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Vocational, Technical or Trade Scho
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I have a 2004 c15 bridge 625 with a cat 525 program we put
Hello, I have a 2004 c15 bridge 625 with a cat 525 program we put in computer. I have a problem with the egt going high when driving in temperatures above 82 degrees. seems like any boost above 20 lbs… read more
Cat Man
Cat Man
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Vocational, Technical or Trade Scho
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I have a boost problem drivine on flat road it fine comes
I have a boost problem drivine on flat road it fine comes to a little hill it dies change turboe egr etc still nothing even the mack up grades . frustating … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
Have a stock c15 with twin turbos was wondering if I should
Have a stock c15 with twin turbos was wondering if I should update my twin turbos too bigger ones for more horse and better fuel?… read more
Wayne
Wayne
Journeyman
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I have a 2003 cat c12 505 hp in a beaver RV. Motor seems to
I have a 2003 cat c12 505 hp in a beaver RV. Motor seems to run fine and pulls long grades fine however a engine code 25 faults occurs occasionally and interrupts my cruise control for about 5 minutes… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
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Does dual exhaust or larger diameter exhaust effect engine temp and performance? 2004 c15
Does dual exhaust or larger diameter exhaust effect engine temp and performance? 2004 c15 475 cat coded to 550, twin turbo with 4 inch single exhaust. 4.10 gear with 18 speed eaton Pulling super-b gra… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,241 satisfied customers
. Just rolled 1.1 million miles on my 475 hp acert in
Hello. Just rolled 1.1 million miles on my 475 hp acert in an 05 pete 379. I bought it at 570k miles from my dads rigging company in CA. It has been a VERY reliable engine for me. I have several ???s … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
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I got an Accert, it's blue printed and balanced, on has 70000
I got an Accert, it's blue printed and balanced, on has 70000 miles on it. It has PDI stage 1 em codes, marine cam, PDI manifold, pushes close to 800 + hp. My boost usually in a pull is 59 pounds and … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
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
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
Hey man me again got a bxs11997 looking to convert to a single
Hey man me again got a bxs11997 looking to convert to a single turbo what would be a good flashfile for it i need atleast 550hp… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,241 satisfied customers
3406E 2WS started using water after low coolant pulling very
3406E 2WS started using water after low coolant pulling very short steep grade and got hot. water light came on just as or after it got hot. started loosing water out overflow. bubbles on bubble test … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,241 satisfied customers
hi,i bought my 2002 flate top pete in2009. 475 cat but previes
hi,i bought my 2002 flate top pete in2009. 475 cat but previes owner rebuilt motor from cat and thay tune up to 550 with 370 rear ends 275/8022.5 tires i drive 60mph fuel milege with pulling flatebed … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,241 satisfied customers
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
Cat Engine Expert
Vocational, Technical or Trade Scho
10,241 satisfied customers
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Daniel Wilson

Daniel Wilson

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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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