Medium and Heavy Trucks

Have truck repair questions? Ask an Expert

Connect one-on-one with {0} who will answer your question

Related Medium and Heavy Trucks Questions
I am looking into buying a 2006 kenworth 900L. It has a mxs
Hello! I am looking into buying a 2006 kenworth 900L. It has a mxs C-15 acert EPA 04. A FRIEND OWNS THE TRUCK NOW, the engine just had a platinum rebuild with paperwork and 3 year warrenty. I have hea… read more
Nich1019
Nich1019
Diesel Technician
Vocational, Technical or Trade School
48 satisfied customers
2008 cummins ISX450 in an International Prostar truck.
2008 cummins ISX450 in an International Prostar truck. Coolant temperature gets up to 220 degrees then the fan comes on and it gets back down to 190 then fan goes off but it creeps right back up to 22… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
214 satisfied customers
I have a c16 CAT I just left the dealer from putting in an
I have a c16 CAT I just left the dealer from putting in an oil cooler, 45 mins into the ride oil temp and water temp are running higher than normal operating temp. Only running a load weighing 19k it … read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
5,115 satisfied customers
Truck running too cool. C15 6nz had thermostat replaced.
Truck running too cool. C15 6nz had thermostat replaced. After warmup, takes 20 miles to get temp to 190. Temp drops 15 degrees going thru a small town, then it will pick back up in few miles. At 800 … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
6,062 satisfied customers
Peterbilt 2004 379 bxs 10888 cat c15 -problem is engine when
peterbilt 2004 379 bxs 10888 cat c15 -problem is engine when running down road at cruise, engine will cool to about 150 degrees. sit at loading dock and idle will run about 190. pull a hill will come … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
DO THEY MAKE A COOLER THERMOSTAT FOR A 3116 CAT, I KNOW OEM
DO THEY MAKE A COOLER THERMOSTAT FOR A 3116 CAT, I KNOW OEM IS AT 190 DEGREES, THIS UNIT SEEMS TO RUN WARM WHEN LOADED. MANUAL GAUGE READS UP TO 220, BUT WHEN CHECK WITH HEAT GUN, THAT IS ONLY READY A… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
The engine temp runs up to 212 degrees and fan isn't coming
The engine temp runs up to 212 degrees and fan isn't coming on. I replaced the fan trigger on the thermostat housing and checked the thermostats. I have a 170 and a 180 degree thermostats on it and th… read more
PATRICK WENSLEY
PATRICK WENSLEY
Associates Degree Of Applied Science
I have a C15 6NZ no start. Getting fuel with pressure.
I have a C15 6NZ no start. Getting fuel with pressure. Checked with Cat ET and no codes. R&RAY primary and secondary engine speed timing sensors. Both were sized to wiring harness. Saved secondary wir… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
I want to lower my coolant temp it runs now at 190F degrees
I want to lower my coolant temp it runs now at 190F degrees i want it to run around 175F 180F degrees. Is there a way to do this it is a cat c15 6nz… read more
Expert
Expert
10,510 satisfied customers
The engine is a 29 hp Perkins Diesel in a sailboat. We took
The engine is a 29 hp Perkins Diesel in a sailboat. We took it out for a sea trial and at about 3350 it went up to 200 . It held there. At about 2850 it went down to 190 and stayed there at 2500 it wa… read more
Curtis B.
Curtis B.
Technician
Associate Degree
1,947 satisfied customers
I have a 2010 international prostar with a coolant issue. Yesterday
I have a 2010 international prostar with a coolant issue. Yesterday I was driving in Florida and all of a sudden the temp which usually sits on 180 dropped all the way down kind of gradually over 10 m… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
6,062 satisfied customers
i there again Cat Man, we are having another overheating
i there again Cat Man, we are having another overheating problem with our 3116 cat diesel marine. it keeps overheating and we changed the thermostat and still no relief. did lots of trouble shooting a… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
Cat Man. I just did the flash on the KCB engines and since
Cat Man. I just did the flash on the KCB engines and since it only took one file for all four of them do the flash files for each engine prefix work on all engines of that prefix. like all KCB's take … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
I have a 2002 6NZ 550 CAT put new head on it 2 months ago newer oil co
I have a 2002 6NZ 550 CAT put new head on it 2 months ago newer oil cooler and air compressor. I have run it 30000 miles last week it started puffing steam out of dipstick. No antifreeze in oil. I als… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
1) I have a 2008 c15 acert with bully dog gt under normal
1) I have a 2008 c15 acert with bully dog gt under normal driving the engine temp runs at 135 pulling hills it will run to 210 and the fan will then kick on (started after engine was rebuilt) 2) also … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
2003 cat 6nz has 130000 miles on total overhaul and I have
2003 cat 6nz has 130000 miles on total overhaul and I have never been able to get it run warm uasually runs round 170 degrees I have changed thermostats to 190 degree and couple days ago it was pullin… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
I want to put a 6nz engine in a 1981 Peterbilt that has an
I want to put a 6nz engine in a 1981 Peterbilt that has an A model cat engine in it Would you happen to know how much difference there is in the mounting brackets… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
We have a c15 cat assert engine that is running to cold. SDP
We have a c15 cat assert engine that is running to cold. SDP serial number. We cannot get the temperature up. What would be the cause and what should we try to fix this problem?… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 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

6,062 satisfied customers

Owner at DJ Wilson

Cat Man

Cat Man

Cat Engine Expert

10,344 satisfied customers

I am ASE Master Truck Certified.

Wayne

Wayne

Journeyman

5,115 satisfied customers

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

Jeremy

Jeremy

Certified Truck/Bus Technician

2,756 satisfied customers

ASE Med/HD Truck Technician, NATEF Diesel Engines and Electrical/Electronics Technician, Network Engineer specializing in CAN faults, Aftertertreatment, and vehicle communications

Curtis B.

Curtis B.

Technician

1,947 satisfied customers

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

cumminsdr

cumminsdr

Mechanic

1,886 satisfied customers

All types of Cummins applications

Chris (aka-Moose)

Chris (aka-Moose)

Technician

641 satisfied customers

24 years of experience diagnosing & repairing

< 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