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I am looking for advice. I have hydraulic problems on a 2004
I am looking for advice . I have hydraulic problems on a 2004 cat 420d. … read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
803 satisfied customers
Can you help with a cat 299d2 not starting? 1 sec. CAT 299
Can you help with a cat 299d2 not starting? JA: What is the complete model and serial number of your machine? Customer: 1 sec JA: Are you fixing this yourself? What have you tried so far? Customer: CA… read more
catmastertech
catmastertech
Field service technician
Vocational, Technical or Trade Scho
1,297 satisfied customers
I�m having a lot of trouble with my 3116 cat motor it is the
Second opinion] I�m having a lot of trouble with my 3116 cat motor it is the industrial motor in a caterpillar 953 crawler when you started up it runs fine lots of power doesn�t miss a beat within 10 … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
1,024 satisfied customers
I have a customers 1996 freightliner fertilizer tender truck
I have a customers 1996 freightliner fertilizer tender truck with 3176 cat. Engine goes into a multiple shudder or misses when under load. No codes are stored in ECM, found debris in filter suction li… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
558 satisfied customers
I have a 2005 cat 420D and I replaced the fuel filter now I
I have a 2005 cat 420D and I replaced the fuel filter now I can't get it to keep running and have been trying for an hour … read more
Curtis B.
Curtis B.
Technician
Associate Degree
36,019 satisfied customers
My 460D backhoe often looses fuel prime when shut down. 420D
My 460D backhoe often looses fuel prime when shut down. … read more
Curtis B.
Curtis B.
Technician
Associate Degree
36,019 satisfied customers
I have a problem with a cat 315c, engine 346t. When the
I have a problem with a cat 315c, engine 346t. When the machine start workIng there is no issue, but after a few hours, the speed go down and not speed up anymore until i turn off the engine and whait… read more
catmastertech
catmastertech
Field service technician
Vocational, Technical or Trade Scho
1,297 satisfied customers
I have a Cat 246 skid steer. It runs great when I first
I have a Cat 246 B skid steer. It runs great when I first start it and run it until after about 10 minutes. Then it starts to run crappy, bogging down and sputtering. If I start it again hours later, … read more
Curtis B.
Curtis B.
Technician
Associate Degree
36,019 satisfied customers
I have a cat skid steer mini backhoe and a cat front loader
Hello I have a cat skid steer mini backhoe and a cat front loader and I want to change the fuel filter on both of them They're both small kind of like a size of a bobcat. I want to change the fuel fil… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
803 satisfied customers
I have a 2004 Cat 420D, 3800hr that will not start. quit
I have a 2004 Cat 420D, 3800hr that will not start. quit while working. Sounded like fuel starved, replaced fuel filter. Produced some fuel at bleed screw, none at fuel pump to injector lines. Could i… read more
Bradley Martin
Bradley Martin
16 satisfied customers
My cat d3k lgp will not start unless aided with a wet gas
My cat d3k lgp will not start unless aided with a wet gas rag over the intake. Once started it runs great with no smoke under all conditions. If ypu turn the machine off and immediately try to restart… read more
catmastertech
catmastertech
Field service technician
Vocational, Technical or Trade Scho
1,297 satisfied customers
I have a Gradall 534B-8 with a Perkins Diesel engine. List
I have a Gradall 534B-8 with a Perkins Diesel engine. List no. LJ7057 and Serial no. U357891T Its an older machine. The engine started running rough and was acting like it was under a load (like when … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
1,024 satisfied customers
I have a 420d backhoe where do i check level of hydraulic
I have a 420d backhoe where do i check level of hydraulic fluid and where do i add if needed i have an alarm that wont quit i thought it was engine oil but all fluids are good except i dont know how t… read more
J F
J F
349 satisfied customers
I have a 2001 cat 420D and the steering has gotten hard to
I have a 2001 cat 420D and the steering has gotten hard to turn even on asphalt,especially with material in the bucket. put a pressure gauge on it and only getting 600 psi. any thoughts?… read more
catmastertech
catmastertech
Field service technician
Vocational, Technical or Trade Scho
1,297 satisfied customers
I HAVE A CAT 3126 AND AFTER I DRAINED THE FUEL WATER SEPERATOR
I HAVE A CAT 3126 AND AFTER I DRAINED THE FUEL WATER SEPERATOR IT WON'T START. TRIED PUMPIN GTHE PRIMING PUMP AND IT STARTED ONLY FOR A FEW SECONDS. HOW DO I GET THE AIR OUT OF THE SYSTEM?… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
558 satisfied customers
I have a 420D CAT backhoe that wouldnt start, engine turns
I have a 420D CAT backhoe that wouldn't start, engine turns over but it will nut fire. I checked AND DRAINED the water in fuel filter. It didn't appear to have any water in the filter. It acts like th… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
1,024 satisfied customers
I have not started my 753 model Bobcat in 7 years. I drained
I have not started my 753 model Bobcat in 7 years. I drained some diesel fuel out through the fuel filter and added new fuel. When I attempt to start it, it intermittedly tries to start but turns over… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
803 satisfied customers
Have a Cat 252 Skid steer with a 3044 with about 1300 hours.
Have a Cat 252 Skid steer with a 3044 with about 1300 hours. It will not rev up after it gets warm and is starting to die under a small load. Seems to be getting worse. No unusual smoke. After you ble… read more
Curtis B.
Curtis B.
Technician
Associate Degree
36,019 satisfied customers
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Meet the Experts:

Wayne

Wayne

Journeyman

803 satisfied customers

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

Cat Man

Cat Man

Cat Engine Expert

558 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

42 satisfied customers

16 years of experience

Steve

Steve

Mechanic

42 satisfied customers

Heavy Equipment Mechanic for 25 years

JBFixxer

JBFixxer

Mechanic

20 satisfied customers

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

Don

Don

Journeyman

13 satisfied customers

i am a red seal canadian mechanic with thirty years experience

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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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