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We have a CATERPILLAR C9 with low actuating pressure. New
Hi. We have a CATERPILLAR C9 with low actuating pressure. New Huei pump and injectors. Oil pressure is around 3,2 bar (46psi) after temperature stabilizes. But the engine will not perform when load is… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,206 satisfied customers
Have a 2013 Zd331 with a d1305-e3 diesel eng. 1100 hrs. was
Have a 2013 Zd331 with a d1305-e3 diesel eng. 1100 hrs. was running great. started to lose power this spring.No blowby not smoking. Changed oil/filter every 200 hrs since new. The engine had 40psi oil… read more
Curtis B.
Curtis B.
Technician
Associate Degree
1,921 satisfied customers
2007 C9 Cat 335 HP in a Sterling truck. I guess i will ask
2007 C9 Cat 335 HP in a Sterling truck. I guess i will ask the question first and then go into detail. Have you ever seen a issue with the HEUI pump driving the transfer pump drive shaft. Short versio… read more
james Roberts
james Roberts
Maintenance assistant
Vocational, Technical or Trade School
3 satisfied customers
Have a 2003 cat 246 skid steer. Oil pressure light on and
Have a 2003 cat 246 skid steer. Oil pressure light on and buzzer. Will start and run for five minutes then shut down. On start up it makes a sound of fluid squinting threw a valve. Could the turbo be … read more
catmastertech
catmastertech
Field service technician
Vocational, Technical or Trade Scho
1,303 satisfied customers
How does this service work? I have a question regarding the
Hi, how does this service work? I have a question regarding the Heui fuel system on cat c9 … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,206 satisfied customers
I have a 3306B in a 330 excavator. Engine was rebuilt about
I have a 3306B in a 330 excavator. Engine was rebuilt about 1500 Hrs ago. Just started to have low power and wants to stall under a load. Has 10 Lbs boost under as much load before stalling. Put a tur… read more
catmastertech
catmastertech
Field service technician
Vocational, Technical or Trade Scho
1,303 satisfied customers
3208 cat no start / stall no fuel to injectors? Have kill
3208 cat no start / stall no fuel to injectors ? Have kill solonoid removed ! Can't find hand prime pump ? Not on fuel filter housing ?… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,206 satisfied customers
having a problem with my 962 G .when started it it runs ,them
having a problem with my 962 G .when started it it runs ,them shut down after 2-3 sec then have to start and start for a long period,after it runs its ok the engine is usin 3-4 liters of motor oil dur… read more
catmastertech
catmastertech
Field service technician
Vocational, Technical or Trade Scho
1,303 satisfied customers
Good day sir. One quick question. C7 cat injection actuation
Good day sir. One quick question. C7 cat injection actuation pressure code on et. Did a test on et for this were I go in an raise the pressure and it won't come up I think it a pump what's your idea… read more
catmastertech
catmastertech
Field service technician
Vocational, Technical or Trade Scho
1,303 satisfied customers
I have a c9 cat in a shredder bought as a non runner when trying
I have a c9 cat in a shredder bought as a non runner when trying to start with the rocker cover off it fires on one cylinder only it sounds like its no1 cylinder and that injector is exhausting a lot … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,206 satisfied customers
I have a Cat 216 skidsteer with 3200 hours. I rebuilt the Perkins
I have a Cat 216 skidsteer with 3200 hours. I rebuilt the Perkins engine @2300 hrs and put on a new hyd pump @ about 2000 hours. Since the engine rebuild we have used it 1000 hrs with no problems. It'… read more
catmastertech
catmastertech
Field service technician
Vocational, Technical or Trade Scho
1,303 satisfied customers
Have a 160M grader. Hard starting ,used a lot of oil when we
Have a 160M grader. Hard starting ,used a lot of oil when we got it(1160 hrs) Warning light for oil pressure came on at 3995 hours. Sent it to shop. Mechanic Telling us engine is dusted. Hardly any bl… read more
catmastertech
catmastertech
Field service technician
Vocational, Technical or Trade Scho
1,303 satisfied customers
I have a c-9 in my 2005 tk722b feller buncher. Put a new Huey
I have a c-9 in my 2005 tk722b feller buncher. Put a new Huey pump in about 450 hrs ago. Now I'm getting a iap code of 641:11, machine will loads up rpms drop from 2200 to 1700 machine becomes a dog. … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,206 satisfied customers
OUR CAT 325 C EXCAVATOR HAS A NEW REBUILT ENGINE MAYBE 500
OUR CAT 325 C EXCAVATOR HAS A NEW REBUILT ENGINE MAYBE 500 HRS. AND THE ENGINE OIL PRESURE LIGHT GOES ON AND IT SHUTS DOWN THE ENGINE. w INSTAALES A PRESURE GAGE NEXT TO THE OIL FILTER AND IT SHOWED 7… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
1,024 satisfied customers
The pressures are 460 pilot and main is around 4600. the pump
The pressures are 460 pilot and main is around 4600. the pump has been rebuilt and set to spec buy the Cat specialist about 40 hrs ago. The staling under load appeared 1st ,the machine sat for about 1… read more
catmastertech
catmastertech
Field service technician
Vocational, Technical or Trade Scho
1,303 satisfied customers
Dynahoe 160 Series B: I have a 1969 Dynahoe 160 series B. Used
I have a 1969 Dynahoe 160 series B. Used infrequently, for years it has started right up, but after running for a while, particularly when applying power to take a big scoop with the front bucket, it … read more
Curtis B.
Curtis B.
Technician
Associate Degree
1,921 satisfied customers
I own a 450ct loader, a few days ago the hydraulics stopped
I own a 450ct loader, a few days ago the hydraulics stopped working and the hydraulic fluid warning lamp came on. The machine has less than 200 hours on it. Any ideas as to what caused this. xxxx xxxx… read more
Curtis B.
Curtis B.
Technician
Associate Degree
1,921 satisfied customers
we have a c-9 cat engine, a regulator got hot, it has numerous
we have a c-9 cat engine, a regulator got hot, it has numerous wires coming out of it, the oil pressure guage goes from 0 - 100 almost continuously. heater intake is on, what could it be? It is on the… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,206 satisfied customers
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Meet the Experts:

Curtis B.

Curtis B.

Technician

1,921 satisfied customers

Technican turned service manager with multiple lines of equipment and rental units.

Wayne

Wayne

Journeyman

1,024 satisfied customers

worked on many road graders, Bull dozers , skid steers, Rollers

Cat Man

Cat Man

Cat Engine Expert

10,206 satisfied customers

I am ASE Master Certified.

dieseldan55

dieseldan55

Mechanic

294 satisfied customers

Road Mechanic for Volvo Construction Equipment.

Chris (aka- Moose)

Chris (aka- Moose)

Technician

44 satisfied customers

24 years of experience diagnosing & repairing

Steve

Steve

Mechanic

42 satisfied customers

Heavy Equipment Mechanic for 25 years

JBFixxer

JBFixxer

Mechanic

22 satisfied customers

16+ years experience, hydraulics,hydrostatics, engines, fuel injection systems. And everything in between.

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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.

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