Medium and Heavy Trucks

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Related Medium and Heavy Trucks Questions
Tires. I have a tractor with 11r5 tires but the trailer is
I have a tractor with 11r5 tires but the trailer is 22.5 70 tires Is it legal to drive or can tires be converted … read more
Mike Mcmillan
Mike Mcmillan
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I have a Freightliner m2 sport chassis it's a 2008 it has a
I have a Freightliner m2 sport chassis it's a 2008 it has a sticker rating on the rear axle of 12000 lb with airliner suspension when we check the part numbers the manufacturer rates the rear end for … read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
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How many litres of fuel dose a C15 Cat motor use per 100Km.
how many litres of fuel dose a C15 Cat motor use per 100Km … read more
Chris (aka-Moose)
Chris (aka-Moose)
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Vocational, Technical or Trade School
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I have a 2000 ford f650 and need specs and part numbers for
I have a 2000 ford f650 and need specs and part numbers for all of the filters that should be replaced. I just purchased the truck and want to perform a full PM. I believe I need to change the oil, oi… read more
Don
Don
fleet superintendent
Vocational, Technical or Trade Scho
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We have a C15 cat in a truck that we wish to put dual range
Hi, we have a C15 cat in a truck that we wish to put dual range diffs into. When it comes to programming the ecm we are chasing the value required for the high range setting and low range setting. I b… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
I just switched out the axles from 2.53 to 3.55... Kenworth
I just switched out the axles from 2.53 to 3.55... … read more
Mike Mcmillan
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We have a fl70 with a cat 3126 (330hp) we have a new race
we have a fl70 with a cat 3126 (330hp) we have a new race trailer that weighs 25,000 loaded and the truck simply will not pull the trailer up a grade. Does this make sense that the truck is that under… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
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I have an 07 vnl780 with an ISX. I recently, out of the blue
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Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,740 satisfied customers
I have a 2005 peterbilt with an older 3406e engine. 2 wire
I have a 2005 peterbilt with an older 3406e engine. 2 wire speed sensor. Everything worked perfectly until I changed my ecm. No speedometer doesn't work correctly. Shows wrong speed and when it gets p… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
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I have a year 2007 Kenworth T800 powered by a 475 acert. It
I have a year 2007 Kenworth T800 powered by a 475 acert. It has 1.2 million miles original on the engine. Aside from minor repairs it has never been overhauled. The catalytic converter mufflers are or… read more
Cat Man
Cat Man
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Vocational, Technical or Trade Scho
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I have a 2002 columbia with a rtlo14610b. 3:90 rears with
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spankyjr1
spankyjr1
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im looking at a 2007 peterbuilt 340 with a isc 315hp. it has
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kwpetetech
kwpetetech
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Just bought an 06 Freightliner Columbia Detroit S60 with a
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Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
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I have a 2012 Ford F250 diesel truck with 3.55 gearing and
I have a 2012 Ford F250 diesel truck with 3.55 gearing and am wondering what the affect will be on the vehicles towing capacity now that the truck has after market wheels and tires. The wheels are Mot… read more
spankyjr1
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This is a Class 8 semi-truck question. I need help determining
This is a Class 8 semi-truck question. I need help determining the best semi-truck for me base on mpg, reliability, and longevity. The trucks are all 2007 with like miles of about 600k: 1. Freightline… read more
Jeremy
Jeremy
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Associate Degree
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Have a t800 2006 ken worth with c15 engine and chalmers suspension
Have a t800 2006 ken worth with c15 engine and chalmers suspension 46k 4.30 ratio, but fuel economy is not good, how can I improve this, is it the engine, or rear end, other trucks of similar weights … read more
Jim
Jim
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cat c15 accert I have lp22.5 tires and I think the truck is
cat c15 accert I have lp22.5 tires and I think the truck is set for 11r22.5 2" difference in dia. What do I do to set the speed and such on the computer? I see the P/mile in configuration. I am guessi… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,234 satisfied customers
Hi, I have been looking for information on the following
Hi, I have been looking for information on the following topic for a long time and finally i found this group and saw hour comments. I'd really appreciate if you can help me. We bought a Kenworth T800… read more
JCTech
JCTech
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Vocational, Technical or Trade Scho
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Meet the Experts:

Daniel Wilson

Daniel Wilson

4,737 satisfied customers

Owner at DJ Wilson

Cat Man

Cat Man

Cat Engine Expert

5,234 satisfied customers

I am ASE Master Truck Certified.

Wayne

Wayne

Journeyman

4,023 satisfied customers

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

Jeremy

Jeremy

Certified Truck/Bus Technician

2,740 satisfied customers

ASE Med/HD Truck Technician, NATEF Diesel Engines and Electrical/Electronics Technician, Network Engineer specializing in CAN faults, Aftertertreatment, and vehicle communications

cumminsdr

cumminsdr

Mechanic

1,700 satisfied customers

All types of Cummins applications

Curtis B.

Curtis B.

Technician

1,571 satisfied customers

Technician turned service manager on multiple lines of trucks and engines, used in industry.

Chris (aka-Moose)

Chris (aka-Moose)

Technician

353 satisfied customers

24 years of experience diagnosing & repairing

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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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