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Related Medium and Heavy Trucks Questions
We have a western star 4900 egr with a dpf. Truck will shut
We have a western star 4900 egr with a dpf . Truck will shut down while running at full speed . Red engine light comes on then 2 sec later shut down only happen every so ofen , under load and not . Ha… read more
Roy Belding
Roy Belding
7,806 satisfied customers
2000 Western Star no brake lights. 2000 western star 4900.
2000 Western Star no brake lights JA: What's the make/model/year of your truck? Engine type? Customer: 2000 western star 4900 JA: Are you fixing your truck yourself? What have you tried so far? Custom… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
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2016 Western Star with DD16. Hit a mager ruff spot on a
2016 Western Star with DD16. Hit a mager ruff spot on a road, check engine light came on and will not go out no matter how long it is turned off. … read more
Roy Belding
Roy Belding
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I'm working on a 2011 western star with a dd15 that's
I'm working on a 2011 western star with a dd15 that's deleted. Codes 1231 and 625 come up. Acm not communicating. Tried a different ACM from same year of truck that was also deleted. No change. Been g… read more
Daniel Wilson
Daniel Wilson
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Western star 4900 c15 MBn. New egt probe wired under dash
Western star 4900 c15 MBn. New egt probe wired under dash anyone have a wiring diagram or what it could be?… read more
Daniel Wilson
Daniel Wilson
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Western star 4900 2004 EGT gauge not working brand new wired
Western star 4900 2004 EGT gauge not working brand new wired under the cab and gauge connected. Will not work.… read more
timdieseltech
timdieseltech
lead diesel tech, shop owner
Vocational, Technical or Trade School
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2014 4900 loosing throttle response when loaded and pulling
2014 4900 loosing throttle response when loaded and pulling a hill. Fan kicks in and throttle becomes unresponsive … read more
Roy Belding
Roy Belding
7,806 satisfied customers
Block pitted, head gasket failure. Western star, 4900 fa,
Block pitted , head gasket failure JA: What's the make/model/year of your truck? Engine type? Customer: western star, 4900 fa, 2005, mercedes JA: Are you fixing your truck yourself? What have you trie… read more
Keiphun Sowell
Keiphun Sowell
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Switch Meritor 10 speed with Eaton 13 speed oem has cruise
Switch Meritor 10 speed with Eaton 13 speed oem has cruise control in shift knob along with in dash. Can the shift knob control be disconnected with or without issues? … read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
4,563 satisfied customers
2012 western star 4900. instrument cluster gauges are not
2012 western star 4900. instrument cluster gauges are not working. all powers and ground tested good. we believe it is an issue on the 1587 data link to the speedometer. checked all wiring in cab phys… read more
Daniel Wilson
Daniel Wilson
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I have a cat mxs c15 and it's giving me a code 98. Last week
I have a cat mxs c15 and it's giving me a code 98. Last week it was a 25 so I changed the boost sensor now it giving a 98. Any ideas? … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
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I've got a 2000 Western star 4900 and I replaced the dash
I've got a 2000 Western star 4900 and I replaced the dash gauge light bulbs and now my headlight buzzer is on constantly and ive lost all electrical gauges, speedometer and tachometer are both pinned … read more
Keiphun Sowell
Keiphun Sowell
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I am changing a dd15 out of a 2009 western star and
I am changing a dd15 out of a 2009 western star and installing a n14 in its place and am trying to find a wiring harness that will make this work … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
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Have active code spn 3711 fmi 31 and spn 3719 fmi 0. 2009
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Cat Man
Cat Man
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I have a 2006 Western Star. I have no lights in the sleeper
I have a 2006 Western Star. I have no lights in the sleeper or side boxes. Everything else works fine. I know I shorted the side box switch. I cannot locate the fuse. It must control all the lights. I… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,747 satisfied customers
I am chasing a cruise control diagram on a Western Star
I am chasing a cruise control diagram on a Western Star truck 4964F Nov 1997 for the auto electrician. Thanks… read more
Jeremy
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I'm working on 2011 Western Star 4900 FA. Looking for a/c clutch
I'm working on 2011 Western Star 4900 FA. Looking for a/c clutch relay. Do you know where it is?… read more
Andy
Andy
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Vocational, Technical or Trade School
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International 4900: I have an International 4900 with a DT466E
I have an International 4900 with a DT466E with a Allison Tramsnission/ It will not crank over. We can jump the starter and get it to start but then the electronic shift module does not light up and i… read more
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Jeremy
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Meet the Experts:

Daniel Wilson

Daniel Wilson

5,454 satisfied customers

Owner at DJ Wilson

Cat Man

Cat Man

Cat Engine Expert

5,293 satisfied customers

I am ASE Master Truck Certified.

Wayne

Wayne

Journeyman

4,563 satisfied customers

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

Jeremy

Jeremy

Certified Truck/Bus Technician

2,747 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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All types of Cummins applications

Curtis B.

Curtis B.

Technician

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

Chris (aka-Moose)

Chris (aka-Moose)

Technician

462 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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