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
Cat 3126b engine will not start driving on a route and the
Hey my cat 3126b engine will not start driving on a route and the truck started to drived slugish like it was starving for fuel so I pulled the fuse that was labeled engine fuel now the truck will not… read more
TomcM28
TomcM28
Owner
Associates
13 satisfied customers
3406e all of sunned on day exsevie blow by on crank case
3406e all of sunned on day exsevie blow by on crank case vent and using oil but no skip or foul running . … read more
Nich1019
Nich1019
Diesel Technician
Vocational, Technical or Trade School
47 satisfied customers
99 freightliner xl with cat 3406. Will crank and not start.
99 freightliner xl with cat 3406. Will crank and not start. If ether is sprayed into it, it will run until the ether is used up. Computer has been tested and is OK, fuel filters replaced, hand primer … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
1995 k t 800 cat. fan only works manually we install new
1995 k t 800 cat. fan only works manually we install new thermal switch and solenoid problem still there need help. … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
6,062 satisfied customers
3126 cat will only start on ether. 8yl54721 in a 2000
heui pump replaced, cam sensors replaced, checked cam sensor gap, installed 2 different test ecm's, checked for injector oil leaks, have 1300 psi oil at block, good fuel pressure, good power and grounds at ecm, checked ecm harness and load tested wires, after starting with ether it runs smooth all day. … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
1986 KENWORTH T600 WITH 3406 CAT ENGINE. Was fine, sat for a
1986 KENWORTH T600 WITH 3406 CAT ENGINE. Was fine, sat for a while and now has to be primed to start and once it does it revs up rapidly to 2400 rpm. Accelerator pedal has no effect. Have to control b… read more
catmastertech
catmastertech
Field service technician
Vocational, Technical or Trade Scho
1,324 satisfied customers
Where is the fuel shut off selonoid located on a Caterpillar
Where is the fuel shut off selonoid located on a Caterpillar challenger 95e with a 3196c engine. The serial number is ***** … read more
catmastertech
catmastertech
Field service technician
Vocational, Technical or Trade Scho
1,324 satisfied customers
I have a '99 Peterbilt with a 3406 cat, just wouldn't start
I have a '99 Peterbilt with a 3406 cat, just wouldn't start one day. Will run on ether. Put a new fuel pump on because I thought the pressure may be low, didn't help. I'm trying to test the cam sensor… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
I'm working on a lift truck. 1990s cat 3208 all mechanical
Hey. I'm working on a lift truck. 1990s cat 3208 all mechanical no turbo. Fuel system was plugged and fuel of water/trash. Cleaned rebuilt and replaced pumps and injectors. Runs but will not start wit… read more
spankyjr1
spankyjr1
Retired
Vocational, Technical or Trade Scho
420 satisfied customers
1981 international s series just died, primary fuel filter
1981 international s series just died, primary fuel filter is full secondary is empty. Fuel pump? or clogged pre filter? or clogged primary fuel filter? … read more
spankyjr1
spankyjr1
Retired
Vocational, Technical or Trade Scho
420 satisfied customers
3406 cat engine in 379 peterbilt needs rebuilt. was
3406 cat engine in 379 peterbilt needs rebuilt. was wondering if anyone can help me figure out which one i have because it does not appear to be the arriginal engine and all the plates are not on the … read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
5,115 satisfied customers
2000 GMC T7500 w/cat engine as previous question asked, Ran
2000 GMC T7500 w/cat engine as previous question asked, Ran ok -let it sat for 8 hrs and would not start!!! Engine cranks normal speed,removed hose @ intake and sprayed starting fluid and it will star… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
i have a 1999 international with a dt466e and i have a no
i have a 1999 international with a dt466e and i have a no start condition. 1. Truck will crank 2. no actual icp pressure but has desired pressure 3. oil pressure show on dash but not on computer until… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
214 satisfied customers
93 kW T400 CAT won't start shot ether in it and then it runs
93 kW T400 CAT won't start shot ether in it and then it runs fine. Put on the diagnostic and it showed codes then when you go to clear the codes it loses communication . Any ideas?… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
Cat Man - Hope youre staying warm. I have a bunch of engines
Cat Man - Hope you're staying warm. I have a bunch of engines I need exhaust flow rate, exhaust temperature, DPM emission rate and maximum allowable backpressure. They are: Model Serial# 6.6 66604755 … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
I have a 1999 Chevy 2ton dump truck with a 3126 cat diesel
I have a 1999 Chevy 2ton dump truck with a 3126 cat diesel engine that wont start. I can get it started if i spray ether into the air filter it will start and run until the ether burns up. I had it to… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
Ford Freightliner: I suddenly have the problem of the engine
I suddenly have the problem of the engine shutting off, after priming the fuel filter and spaying starter fluid, the engine starts, runs for a short time and shuts off. The fuel is used from the prime… read more
FIX-IT
FIX-IT
Comercial transport technician
Vocational, Technical or Trade Scho
829 satisfied customers
Freightliner cab over: 73 freightliner cab over 300 cat motor
73 freightliner cab over 300 cat motor - cannot get it to start. can't seem to get fuel to engine, put in new feul filter but still won't start. turns over fine. Is there another fuel pump besides the… 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