Medium and Heavy Trucks

Have truck repair questions? Ask an Expert

Ask an Expert,
Get an Answer ASAP!

Related Medium and Heavy Trucks Questions
Mbn c15 no power fuel psi at wot 90 psi at idle 80 psi gauge
Mbn c15 no power fuel psi at wot 90 psi at idle 80 psi gauge bounces … read more
Cat Man
Cat Man
Cat Engine Expert
9,502 satisfied customers
This is what is going on I have a 2010 freightliner Coronado
Ok this is what is going on I have a 2010 freightliner Coronado with a series 60 this thing when your going up through the gears usually starts in eight gear when I have my foot in it and about 1600 t… read more
timdieseltech
timdieseltech
diesel tech
Vocational, Technical or Trade School
85 satisfied customers
I've C15 BXS with VVAs put to sleep, and tuned to 650hp. I
I've C15 BXS with VVAs put to sleep, and tuned to 650hp. I has an derate issue when cold, with a load it will only build 35 psi boost, and feels draggy, and after you've driven bout 5-10 minutes it st… read more
Cat Man
Cat Man
Cat Engine Expert
9,502 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
2,891 satisfied customers
I HAVE A 2009 FREIGHT-LINER WITH A CAT C15 engine as 700k
I HAVE A 2009 FREIGHT-LINER WITH A CAT C15 engine as 700k miles. Runs great on a flat surface but ones it hit a hill power drops to 10 mph. I change the turbo, fuel pump and many more things, I can no… read more
Cat Man
Cat Man
Cat Engine Expert
9,502 satisfied customers
C15 cat in 2005 international run hot at 210deg and hoter
c15 cat in 2005 international run hot at 210deg and hoter when in a pull fan will not come on until it gets to 220 de … read more
Cat Man
Cat Man
Cat Engine Expert
9,502 satisfied customers
I have a c15 acert and a 2001 c15 single turbo in a Pete can
I have a c15 acert and a 2001 c15 single turbo in a Pete can I swap them and what problems would I have… read more
Cat Man
Cat Man
Cat Engine Expert
9,502 satisfied customers
Cat c15 low oil pressure code as soon as you exceed 1500 rpm
dave, cat c15 low oil pressure code as soon as you exceed 1500 rpm with 40 psi oil pressure … read more
Cat Man
Cat Man
Cat Engine Expert
9,502 satisfied customers
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
Cat Man
Cat Engine Expert
9,502 satisfied customers
i have a dt466e. the truck will not start without giving it
i have a dt466e. the truck will not start without giving it a little bit of ether. After that it will crank right up. I have 35-40 psi on the schrader valve on filter housing during crank. I have trie… read more
Andy3221
Andy3221
truck /coach technician
Vocational, Technical or Trade Scho
222 satisfied customers
I am working on a c15 cat... it sounds like an exhaust valve
I am working on a c15 cat... it sounds like an exhaust valve is sticking... only while going down the road... took valve covers off... nothing appears to be broken... if I open the jake solenoid on 5 … read more
Cat Man
Cat Man
Cat Engine Expert
9,502 satisfied customers
catman I have an spd c15 that breaks up when it gets to 40
catman I have an spd c15 that breaks up when it gets to 40 psi on the boost. Its like it is starving for fuel. I can't find my original question but I asked about this last week i think. Originally, I… read more
Cat Man
Cat Man
Cat Engine Expert
9,502 satisfied customers
Hi cat man I have a 2004 freightliner wit a cat c15 engine Few
Hi cat man I have a 2004 freightliner wit a cat c15 engine Few weeks ago I had a problem the truck switched off the engine and had f8 code and didn't want to switch gears replaced the computer box and… read more
Cat Man
Cat Man
Cat Engine Expert
9,502 satisfied customers
ON A TRIP TO Utah TRUCK WAS STARTING AND RUNNING FINE. I SLEPT
ON A TRIP TO Utah TRUCK WAS STARTING AND RUNNING FINE. I SLEPT IN WALLCOTT, IOWA. WHEN I TRIED TO START THE TRUCK IT HAD TO CRANK A LONG TIME. I THOUGHT IT MIGHT BE THE COLD WEATHER. WHEN I GOT INTO O… read more
Cat Man
Cat Man
Cat Engine Expert
9,502 satisfied customers
2001 INTERNATIONAL 4700 7.6L. OIL/WATER LIGHT IN BLINKING
2001 INTERNATIONAL 4700 7.6L. OIL/WATER LIGHT IN BLINKING AND THE ENGINE SHUTOFF. IT STARTS RIGHT AWAY, BUT SHUTOFF AGAING… read more
Cat Man
Cat Man
Cat Engine Expert
9,502 satisfied customers
I got 2009 Freightliner Columbia c15 sdp13149. In the past
I got 2009 Freightliner Columbia c15 sdp13149. In the past it gives me regen and check engine lights for a second once in a while. 2 weeks ago i cleaned DPF filter it was very dirty but in good condit… read more
Cat Man
Cat Man
Cat Engine Expert
9,502 satisfied customers
I had a dyno done on an 08 C15. Blowby at 1900 RPM was 9 (in
I had a dyno done on an 08 C15. Blowby at 1900 RPM was 9 (in H20) At 1700 RPM it was down to 6. 1300 it was 4. Is this normal? Also, the dyno had HP and also a C_VPwr. I know this is corrected HP, but… read more
Cat Man
Cat Man
Cat Engine Expert
9,502 satisfied customers
Im driving a 2008 Hino 145. Truck has no acceleration like
I'm driving a 2008 Hino 145. Truck has no acceleration like as if the engine ran hot and the check engine light would come on and reduce engine power. The check engine light did not come on though. Tu… read more
spankyjr1
spankyjr1
Retired
Vocational, Technical or Trade Scho
19 satisfied customers
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.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

EstherWoodstock, NY

Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know.

RobinElkton, Maryland

He answered my question promptly and gave me accurate, detailed information. If all of your experts are half as good, you have a great thing going here.

DianeDallas, TX

< Previous | Next >

Meet the Experts:

Daniel Wilson

Daniel Wilson

2,891 satisfied customers

Owner at DJ Wilson

Cat Man

Cat Man

Cat Engine Expert

9,502 satisfied customers

I am ASE Master Truck Certified.

Wayne

Wayne

Journeyman

2,892 satisfied customers

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

Jeremy

Jeremy

Certified Truck/Bus Technician

2,243 satisfied customers

ASE Med/HD Truck Technician, NATEF Diesel Engines and Electrical/Electronics Technician, EPA 608/609 HVAC Certified, Steering/Suspension and ABS/Brakes Technician

cumminsdr

cumminsdr

Mechanic

1,351 satisfied customers

All types of Cummins applications

Curtis B.

Curtis B.

Technician

991 satisfied customers

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

dieseldan55

dieseldan55

Contractor

74 satisfied customers

Road Service mechanic for Volvo Construction.

< Previous | Next >

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.

Show MoreShow Less

Ask Your Question

x