Medium and Heavy Trucks

Have truck repair questions? Ask an Expert

Ask an Expert,
Get an Answer ASAP!

My Cat 247b3 is acting like its starving for fuel when its…

Customer Question
My Cat 247b3 is...

My Cat 247b3 is acting like its starving for fuel when its going up hill forward; not backwards, it seems to be worse when the fuel level is below 1/2, the operator manual says there is a water drain, but its not where the manual says, I cat see any that looks like a drain, The problem is intermittent and I suspect rust or something in the tank clogging the screen, fuel filter new, no change, any Ideas? thanks Bill

Mechanic's Assistant: What is the complete model and serial number of your machine?

247B3 PIN 247BATSL00340

Mechanic's Assistant: Anything else you want the equipment mechanic to know before I connect you?

I think that's it

Submitted: 8 months ago.Category: Medium and Heavy Trucks
Show More
Show Less
Ask Your Own Medium and Heavy Trucks Question
Answered in 1 hour by:
9/16/2017
Technician: cat_engines_only, Other replied 8 months ago
cat_engines_only
Category: Medium and Heavy Trucks
Satisfied Customers: 2,498
Experience: Repair CAT machines only
Verified

Hello,

Draining the tank is the best place to start. It will be a pipe plug and you may need to clean the area to see the plug. If your machine bottom has been rubbing, the plug could be rubbed flat too.

Note: Drain the water and the sediment from the fuel tank when the tank is almost empty.

  1. Slowly remove the fuel tank cap in order to relieve the tank pressure.
  2. The fuel tank drain plug is located underneath the machine at the left rear corner. Loosen the plug.
  3. Allow the water and the sediment to drain into a suitable container.

  4. Install the fuel tank drain plug.

    Note: Apply 5P-3413 Pipe Sealant to the threads on the drain plug.

  5. Install the fuel tank cap.

Ask Your Own Medium and Heavy Trucks Question
Technician: cat_engines_only, Other replied 8 months ago

Did you find anything in the filter when you changed it?

Ask Your Own Medium and Heavy Trucks Question
Technician: cat_engines_only, Other replied 8 months ago

Have you changed the in-line fuel filter?

Ask Your Own Medium and Heavy Trucks Question
Technician: cat_engines_only, Other replied 8 months ago

Some of these engines have a lift pump on the side of the block. It may have a cover that can be removed. If it does, some of these lift pumps also had a screen under the cover and it can become plugged.

I would inspect all the lines from the tank to the engine. Loog for damage or rubbed areas and loose clamps. Anywhere air can enter the suction lines, you will lose power.

Don't forget the clean the area where fresh air is pulled into the air filter. I often find the tower is full of trash and block the hole to the air filter.

You can test your lift pump by adding a line from the pump to a buck and see if you have flow from the pump. Disconnect the shutoff solenoid so the engine will not start and crank for 30 seconds. You should get about two quarts of fuel. You can also connect a pressure gauge and see if it will make about 8 psi or better.

Ask Your Own Medium and Heavy Trucks Question
Customer reply replied 8 months ago
Found a little rust in the filter, not enough to clog it, maybe half a thimble, followed the fuel line from the tank to the cartridge filter and from there to the pump, no inline filter, the manual says there's one but got nothing, I'll also check the screen and the pump, I think the manual may be the wrong one since nothing seems to be where it says it is, Thanks I'll you know what I find tomorrow, Bill
Technician: cat_engines_only, Other replied 8 months ago

By the serial number you posted, you should have an in-line filter to protect the lift pump.

See the attached image for the parts.

Ask Your Own Medium and Heavy Trucks Question
Customer reply replied 8 months ago
All good, there was an inline filter (clogged with rust) drained the tank got some more rust, new filter tightened all the hoses (some loose) running like new, Thanks Bill
Technician: cat_engines_only, Other replied 8 months ago

Great! Glad to hear you found the problem. I would recommend you check your filters closely at the next service interval to monitor for more rust. If you find rust again, look for additives from your fuel supplier or dealer to help limit the buildup of water in your fuel. It is always better to prevent a problem before it can damage the injectors or fuel injection pump. Low fuel pressure from plugged filters or water in the system will greatly shorten the life of these components.

If you need more help, please let me know. I will be glad to help all I can.

Thanks,

CATMASTERTECH.

Ask Your Own Medium and Heavy Trucks Question
Was this answer helpful?
Ask cat_engines_only Your Own Question
cat_engines_only
cat_engines_only
cat_engines_only, Other
Category: Medium and Heavy Trucks
Satisfied Customers: 2,498
2,498 Satisfied Customers
Experience: Repair CAT machines only

cat_engines_only is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

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

2,322 satisfied customers

Owner at DJ Wilson

Cat Man

Cat Man

Cat Engine Expert

4,247 satisfied customers

I am ASE Master Truck Certified.

Wayne

Wayne

Journeyman

2,640 satisfied customers

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

Jeremy

Jeremy

Certified Truck/Bus Technician

2,019 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

1,225 satisfied customers

All types of Cummins applications

Curtis B.

Curtis B.

Technician

813 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 >

Related Medium and Heavy Trucks Questions
I have a deere 8100 cranks but wont start. Not sure of
not sure of serial number but its a 1997 john deere 8100 … read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
2,640 satisfied customers
Im a drivaway driver... International HX 2019 are usually
international HX 2019 are usually the problem. we have to reinstall the axels when ee get to the location.sometimes they just WONT GO the last inch. these are the double spline axels .they are some problem for many of us ANY TRICKS ? … read more
Andy3221
Andy3221
truck /coach technician
Vocational, Technical or Trade Scho
222 satisfied customers
99 international 9200 semi. No gauges, laptop will not
99 international 9200 semi JA: What is the make/model of your car? Customer: no gauges, laptop will not communicate JA: Are you fixing your vehicle yourself? What have you tried so far? Customer: Yes.… read more
timdieseltech
timdieseltech
diesel tech
Vocational, Technical or Trade School
63 satisfied customers
Does a 2006 freightliner 60 series Detroit have a crank
Does a 2006 freightliner 60 series Detroit have a crank sensor? … read more
timdieseltech
timdieseltech
diesel tech
Vocational, Technical or Trade School
63 satisfied customers
I have a light on the top of my dash that comes one red,
I have a light on the top of my dash that comes one red, with the letters abs in it, that's turned on? … read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
3 piston is gauled and does not want to knock out on my 3.9
3 piston is gauled and does not want to knock out on my 3.9 cummins, I don't want to damage the rod if I can help it. Do I drill out the top of the piston? … read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,225 satisfied customers
What are the torque specs for n 14 exhaust manifold.
What are the torque specs for n 14 exhaust manifold … read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,225 satisfied customers
I have a cat 3126 Marine engine that cranks but does not
Hi I have a cat 3126 Marine engine that cranks but does not start. Serial 3GS02117. I recently replaced injectors and injector cups, injector actuation solenoid, injector pressure sensor and had the c… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,247 satisfied customers
471 Massey a lot of vibration, 471 bmo9013, Nothing looking
Nothing looking to buy has vibration does engine have balance shaft … read more
Curtis B.
Curtis B.
Technician
Associate Degree
813 satisfied customers
I need to know how much Freon goes into my 89 Peterbilt 362
I need to know how much Freon goes into my 89 Peterbilt 362 after vacuuming system … read more
spankyjr1
spankyjr1
Retired
Vocational, Technical or Trade Scho
19 satisfied customers
I have Ecu 128 5 1d 001. Detroit series 60. 05. Yeap
I have Ecu 128 5 1d 001 JA: What's the make/model/year of your truck? Engine type? Customer: Detroit series 60 JA: Are you fixing your truck yourself? What have you tried so far? Customer: 05 JA: Anyt… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
2,322 satisfied customers
Gauge cluster cuts on and off. Detroit series 60 2010
gauge cluster cuts on and off JA: What's the make/model/year of your truck? Engine type? Customer: Detroit series 60 2010 freightliner day cab JA: Sometimes things that you think will be really compli… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
2,322 satisfied customers
2004FreightlinerM2 Series - M2-106CATERPILLAR C-7 ADEM
2004FreightlinerM2 Series - M2-106CATERPILLAR C-7 ADEM A4/ACERT EPA04ac compressor not turning on, ac gas already recharge, when i remove evap sensor probe then it works, if i install a heater control… read more
roy
roy
Associate Degree
3 satisfied customers
Dt466, stall when hot wont restart. IPR screen disengrated
Dt466, stall when hot wont restart. IPR screen disengrated caused high pressure oil leak. Replaced, IPR, O ring kit, pucks. Truck started and ran, lacked power. Tested HPOP, read 2700psi, replaced HPO… read more
Andy3221
Andy3221
truck /coach technician
Vocational, Technical or Trade Scho
222 satisfied customers
My Ixs oil temp getting hot all up to 250 bobtail,in frame
My Ixs cumming oil temp getting hot all up to 250 bobtail,in frame done 20,000 miles ago .put new oil thermostat still gets hot… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
2,322 satisfied customers
I have a Cat 330 BL excavator and I am having a low power
I have a Cat 330 BL excavator and I am having a low power speed problem. When you first start the machine up it runs and operates as it should then after about ten minutes of running the power and spe… read more
cat_engines_only
cat_engines_only
Other
2,498 satisfied customers
I have a 2004 international 4300 DT466 engine, PID 171 FMI 3
I have a 2004 international 4300 DT466 engine, PID 171 FMI 3 CODE It keeps going to Active/Inactive mode… read more
Andy3221
Andy3221
truck /coach technician
Vocational, Technical or Trade Scho
222 satisfied customers
I am working on an a/c in a peterbilt. The low pressure is
I am working on an a/c in a peterbilt. The low pressure is getting to 85 then the fan kicks me n and drops it to 67 then fan kicks out and pressure rises again. I've installed new compressor accumulat… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
2,640 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.

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