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
I have a 2000 CAT 3126 that idles @ 70 psi fuel pressure but
I have a 2000 CAT 3126 that idles @ 70 psi fuel pressure but when you come off idle it begins to drop and it will actually go to 0 psi under a load and the engine still runs ok at psi till it eventual… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
5,115 satisfied customers
I have a 2000 Freightliner Fl 60. Runs fine at times but
I have a 2000 Freightliner Fl 60 . Runs fine at times but sometimes it struggles going up bills to a point where it cuts off while going up hill When I restart immediately the check engine light is of… read more
Joe Green
Joe Green
71 satisfied customers
Can't locate cam senor 2003 cat 3126. Cat 3126. 2003
Can't locate cam senor 2003 cat 3126 JA: What's the make/model/year of your truck? Engine type? Customer: Cat 3126 JA: Are you fixing your truck yourself? What have you tried so far? Customer: 2003 JA… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
2001 GMC with a 3126 engine. After warming up the engine
2001 GMC with a 3126 engine. After warming up the engine looses power and will drop to 20 MPH climbing hills. I checked fuel pressure at an idle and its around 75 PSI. I left the gauge on and drove th… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
607 satisfied customers
My chevy c6500 has 3126 cat 7.2. It drives good for a few
My chevy c6500 has 3126 cat 7.2. It drives good for a few miles then the chevk engine light flashes on and it loses acceleration. i cannot get over 45 after that. we replaced the air, fuel filters as … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
It's Chas again on our F-750 CAT C7. Now that the STOP
Daniel, It's Chas again on our F-750 CAT C7. Now that the STOP ENGINE light has cleared up and the truck is back in service I have been noticing slow lack of power on take off and acceleration and it … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
6,062 satisfied customers
I HAVE A 2000 GMC WITH A CAT 3126, SOME DAYS IT WILL START
I HAVE A 2000 GMC WITH A CAT 3126, SOME DAYS IT WILL START AND RUN FINE THEN I WILL BE DRIVING 65 MPH AND IT DIES AS IF I TURNED THE KEY OFF. SOME TIMES IT WILL RESTART BEFORE I STOP. IF I CRANK ON IT… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
I have a 5.9 280 hp cummings with allison trans in my 1999
I have a 5.9 280 hp cummings with allison trans in my 1999 winibago 34 foot with a colorado toad and 60000 miles this week going to washington I had problem with overheating up hill rig left on cruise… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
5,115 satisfied customers
I have a 2007 Freightliner Columbia, ultra shift. Has problems
I have a 2007 Freightliner Columbia, ultra shift. Has problems getting stuck in between gears and neutral. It flashes the gear its in and 'F'. I had the xy shifter and transmission harness replaced. A… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,756 satisfied customers
2004 332CL, SERIAL BKJ-0444, ENG # ***** 3126 A ,5,500 HRS,
2004 332CL, SERIAL BKJ-0444, ENG # ***** 3126 A ,5,500 HRS, started dripping oil from the front of the motor. Took it apart and replaced lower seal, leak stopped. couple of days later started dripping… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
Have an early production C-15 6nz engine that maintains 60
Have an early production C-15 6nz engine that maintains 60 psi oil pressure running down the road at normal highway speeds (55 -60 mph). When throttle is pressed down oil pressure drops to 40-45 almos… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
I have a 2000 gmc c7500 with a 3126 cat in it. We hooked a
I have a 2000 gmc c7500 with a 3126 cat in it. We hooked a Cat Et up to it this evening with the right adapter I assume...7x-1714. The Cat et program says 1 ECM detected...initializing but not does an… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
Could you tell me why my fvz 1400 Isuzu with the 275 sitec
Could you tell me why my fvz 1400 Isuzu with the 275 sitec motor is heating my fuel To over 60deg c before it shuts my pump down and gives me a 226 code additional information. can still drive truck o… read more
Expert
Expert
Cat 3126 with 10 speed automatic. Good combo in a FL-70 with
Cat 3126 with 10 speed automatic. Good combo in a FL-70 with a 12' Toter home body? will be pulling a 36' fifth wheel trailer weighing about 15k behind it. Heading from east coast to yellowstone, down… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
I have a c6500 chevy with a 3126 cat engine. my problem is
I have a c6500 chevy with a 3126 cat engine. my problem is it shuts down at high rpms because the ign breaker trips. the truck will idle or run at lower rpms all day. as soon as it hits top eng limit,… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,756 satisfied customers
we have a 1997 357 Peterbilt 30 Ton Manitex BoomTruck with
we have a 1997 357 Peterbilt 30 Ton Manitex BoomTruck with a 3406 Cat 470 HP engine, we have a problem with the truck, that when we engage the PTO and goes on the back by the controls to operate the b… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,344 satisfied customers
I have a 98 KW with a M11 in it, it was running down the road
I have a 98 KW with a M11 in it, it was running down the road up a slight hill and at the top it started to run away and all warning lights came on, driver tried tapping foot feed but no respose, driv… read more
spankyjr1
spankyjr1
Retired
Vocational, Technical or Trade Scho
420 satisfied customers
I have a cat 3126 that is hiccuping while idling! Sometimes
I have a cat 3126 that is hiccuping while idling! Sometimes it recovers, sometimes it stalls out! And then I can't get it started without ether till it cools down! Tried pulling valve cover and watchi… 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