Medium and Heavy Trucks

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I have a 2005 peterbilt 379 with a cat acert C15 in it the
I have a 2005 peterbilt 379 with a cat acert C15 in it the blower motor will not work on any speed I have gotten the multimeter out and started checking when I go to any point in the system be at the … read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
203 satisfied customers
I'm looking for someone that who knows whether a Peterbilt
Hi. I'm looking for someone that who knows whether a Peterbilt with a RTO 14609 a paired with a set of 433 rear ends. Would that be a good match … read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,672 satisfied customers
We bought an 01 pete with a 550 c15 motor. Everything was
we bought an 01 pete with a 550 c15 motor. Everything was fine for the first few month. then one night while idling she shut off. Got up and started her right up. The next time a service guy had to co… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
3,400 satisfied customers
I have a 2006 Kenworth T800 with a Cummins IS 450 engine.
I have a 2006 Kenworth T800 with a Cummins IS 450 engine. The speedometer and the engine tachometer are inoperable. Looking for some answers on where to do tests. Thanks … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
3,632 satisfied customers
I have a2002 Peterbilt 379, C15 Cat, 18 spd. The speedometer
I have a2002 Peterbilt 379, C15 Cat, 18 spd. The speedometer quit registering mph and odometer miles. I tried another speedometer but it didn't work either. I replaced the sensor at the transmission b… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,068 satisfied customers
I have 1996 379 Pete just changed to tall rubber 11r24.5 and
I have 1996 379 Pete just changed to tall rubber 11r24.5 and have 355 ratio how do I set dip switches on speedometer … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
3,632 satisfied customers
Looking for specs on a 1986 Peterbilt 359 truck. All I get
Looking for specs on a 1986 Peterbilt 359 truck. All I get from the "free" vin search sites are very general info. Do you have a good site that give expanded specs or could you provide them for vin # … read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,672 satisfied customers
I have a 94 pete 379, with 425 cat, my speedometer quit, I
I have a 94 pete 379, with 425 cat, my speedometer quit, I changed sensor on transmission, did not help, put old sensor on tach and it worked. Today I took off "speed buffer" cat 3e0020-3. Is there an… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,068 satisfied customers
Which should i go with 3.90 or 4.11 gears with 18 speed trans
which should i go with 3.90 or 4.11 gears with 18 speed trans and 11/24.5 tires series 60 detroit i haul heavey 99000 where would the rpms be between 65 and 70 mph… read more
Roy
Roy
shop foreman
Associate Degree
5,399 satisfied customers
I have a 1999 peterbilt 379 with a kilometer putting a *****
I have a 1999 peterbilt 379 with a kilometer putting a ***** ***** in how can I calibrate it … read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,672 satisfied customers
Have a 2004 peterbilt 379. There is voltage drop after it
have a 2004 peterbilt 379. There is voltage drop after it has been running for about 5 min with lights and cab equipment dimming or stopping. Engine continues to run. Replaced batteries and continues.… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
3,632 satisfied customers
I'm switching a 99 peterbilt from Detroit ddec3 to cat 3406e
I'm switching a 99 peterbilt from Detroit ddec3 to cat 3406e 40 pin. What do I need for the cab. I have the harness from the ecm to the firewall from a donor truck. … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
3,632 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
10,068 satisfied customers
How can i change how much the odometer shows that i drive.
How can i change how much the odometer shows that i drive. Ive got Cummins Insite. The truck shows 6 miles per hour slower at 50 MPH… read more
Travis A. Wells
Travis A. Wells
Truck Mechanic
Associates of Applied Science
15 satisfied customers
I own a 1997 Peterbilt,379-B (short nose /hood)Cat 3406 (
I own a 1997 Peterbilt,379-B (short nose /hood) Cat 3406 ( has ECM ) 18 speed trans. Last week i had the tranny rebuilt ( truck in shop mon. Tues wed , back to work with it on Thursday.) On Friday eve… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,068 satisfied customers
I am in need of the dip switch settings for the dash cluster.
I am in need of the dip switch settings for the dash cluster. VIN is 5TH311322. This is a 10-95 IHC 4900.… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
203 satisfied customers
I have a 2004 Pete 379 with a frame beaming issue. 57 to 62
I have a 2004 Pete 379 with a frame beaming issue. 57 to 62 mph. all other aspects of vibration have been done. Ie: Brake drums, wheels, tires, drivellines and even hubs and drive axles, all shocks ha… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
3,632 satisfied customers
dddl6.45 I had 11r24.5 tires and now it has lp 22.5 tires how
dddl6.45 I had 11r24.5 tires and now it has lp 22.5 tires how do I set this in the computer so everything will read correctly?… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,068 satisfied customers
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Meet the Experts:

Daniel Wilson

Daniel Wilson

3,632 satisfied customers

Owner at DJ Wilson

Cat Man

Cat Man

Cat Engine Expert

10,068 satisfied customers

I am ASE Master Truck Certified.

Wayne

Wayne

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

Jeremy

Jeremy

Certified Truck/Bus Technician

2,672 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

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Chris (aka-Moose)

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dieseldan55

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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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