Medium and Heavy Trucks

Have truck repair questions? Ask an Expert

Ask an Expert,
Get an Answer ASAP!

Related Medium and Heavy Trucks Questions
2000 c12 cat not firing on number 4 and have replaced
2000 c12 cat not firing on number 4 and have replaced injector and pressurized cylinder no leaks shorted out injector no change… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,500 satisfied customers
99 385 peterbuilt. 99 peeterbuilt 385, c12 cat. 99
99 peeterbuilt 385 , c12 cat engine i need engine fan control wiring diagram, both mechanical switched and ECM conrolled. mechanical switched side working, auto side not working. vin# ***** … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
2,803 satisfied customers
I have an 01 truck with C12 The other day I started it and
I have an 01 truck with C12 The other day I started it and it ran for about 2 minutes then something locked up and the engine quit. No knock just like it hit a block. We can turn it with a bar but it … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,500 satisfied customers
I just replaced a c12 short block in a 2000 Kenworth truck.
I just replaced a c12 short block in a 2000 Kenworth truck. now I'm getting code 190-12. The sensor and wiring are good, but I now have a 1/4" gap between the sensor and the crankshaft gear. I reused … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,500 satisfied customers
On my Peterbilt 379 with C13 Cat engine the bearing came
On my Peterbilt 379 with C13 Cat engine the bearing came apart in the air compressor the pieces caused a few chipped teeth on timing gears is this a common problem?… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
2,892 satisfied customers
Cat Man, we are thinking of purchasing a 2004 Safari 42ft
we are thinking of purchasing a 2004 Safari 42ft motor home with a 505 cat. I have been a trucker and equipment owner all my life. But i have been out of the field for the last 15-16 years. I am not familiar with the new models today. My question is does this c12 505 horse power cat have any issues i should be aware of? Do they still build this engine? can you get parts? How are they on fuel? Any info would be great Trapp … read more
Curtis B.
Curtis B.
Technician
Associate Degree
991 satisfied customers
Is it important to program injector 4 digit codes into
How important is it to program the injector 4 digit codes into the ECM of the 2000 Sterling C12? My computer does not link to the truck. The complete model and serial number of the machine is Cat c12 … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,500 satisfied customers
Where is fuel pressure sensor on a C12 cat, Fl112 g17204,
Nothing so far I was driving and it started to miss it went away and half hour later came back … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,500 satisfied customers
I have a mechanical 8.3. I am replacing the air compressor
I have a mechanical 8.3. I am replacing the air compressor and would like to know how to time the Bendix compressor to the engine. Could you please help… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,351 satisfied customers
What's the normal intake manifold temp range on a c-12 and
What's the normal intake manifold temp range on a c-12 and if it's hitting 140F what might be the problem ?… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,500 satisfied customers
cat man I got a c12 2ks27875 Andy I need to adjust the valves
Hi cat man I got a c12 2ks27875 Andy I need to adjust the valves can u give me the clearance please… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,500 satisfied customers
My C12 is burning engine coolant (1 gallon every 1500 miles).
My C12 is burning engine coolant (1 gallon every 1500 miles). Where is it going? No leaks, just disappears.… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,500 satisfied customers
1999 Caterpillar c12 in a peterbilt 385. Water pump has been
1999 Caterpillar c12 in a peterbilt 385. Water pump has been replaced, exterior of the radiator has been washed. The engine fan comes on at all temperatures. While driving the temp will be around 210 … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,500 satisfied customers
we found a remove air compressor answer .. but my husband wants
we found a remove air compressor answer .. but my husband wants to know if the thing behind the compressor is an oil seperator to get to the hidden bolt? and does it need to be removed to get to that … read more
Travis A. Wells
Travis A. Wells
Truck Mechanic
Associates of Applied Science
4 satisfied customers
just installed a reman c12 in my truck, two problems tach not
just installed a reman c12 in my truck, two problems tach not working and have a loud whining noise cant tell where it is coming from for sure at an idle you cant hear it but under a load or jaking yo… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,500 satisfied customers
we bought a rebuilt cat c12 and installed it in a truck. we
we bought a rebuilt cat c12 and installed it in a truck. we are not getting a crankshaft signal from the sensor. upon further inspection found the gear case is thicker where the sensor mounts and the … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,500 satisfied customers
I have a 99 freightliner century class with a cat c12 and want
I have a 99 freightliner century class with a cat c12 and want to put a cummin n14 525 with the red tops is it possible with less hassle… read more
spankyjr1
spankyjr1
Retired
Vocational, Technical or Trade Scho
19 satisfied customers
im working on a 2003 cat c12 took head off because coolant
im working on a 2003 cat c12 took head off because coolant system was getting pressurised i did find a bad spot on the head gasket in cylinder number 4 but in cleaning up the head i noticed cracking b… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,500 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

2,803 satisfied customers

Owner at DJ Wilson

Cat Man

Cat Man

Cat Engine Expert

9,500 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