Medium and Heavy Trucks

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I have 2013 Frieghtliner Cascadia. I have had a problem with
I have 2013 Frieghtliner Cascadia. I have had a problem with the voltmeter on the dash being very erratic. Lately it has been dropping below 12 volts and setting the alarm off. All of the sudden the g… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
3,400 satisfied customers
2015 f650 with 6.7. Truck lost electrical power with
2015 f650 with 6.7. Truck lost electrical power with ignition on. Code is 1117. Tried turning engine off and restarting without luck. Truck needed serious power to get running - finally did and have i… read more
Chris (aka-Moose)
Chris (aka-Moose)
Technician
Vocational, Technical or Trade School
149 satisfied customers
2012 freightliner glider truck low voltage drops to 12v batt
2012 freightliner glider truck low voltage drops to 12v batt light comes on new alt charges 14 v batteries good connections good test good at batteries … read more
Roy
Roy
shop foreman
Associate Degree
5,401 satisfied customers
I've got a 2012 Maxxforce 9, cranks but doesn't start. No
Hi. I've got a 2012 Maxxforce 9, cranks but doesn't start. No codes. Any ideas? … read more
Mike
Mike
Shop Foreman/Triage Tech
Associates
2,801 satisfied customers
Have a 1999 international 4700 my charging gauge in the
have a 1999 international 4700 my charging gauge in the truck read between 12 and 14 is there a voltage regulator in the truck if so were, I put a meeter on the alt and it jumps from 12 to 13 i dont b… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
203 satisfied customers
I have a 2001 international dt466e starts right up, idles
I have a 2001 international dt466e starts right up, idles all day(bucket truck ) … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
3,632 satisfied customers
I'm losing battery voltage. I have a new alternator, new
Hi, I'm losing battery voltage . I have a new alternator, new batteries . I've clean all battery cables. Still losing voltage.starter stand a news … read more
Curtis B.
Curtis B.
Retired service manager
Associate Degree
3,516 satisfied customers
My alternator was charging 13.6 sometimes 13.8 at idle, but
Hi there, my alternator was charging 13.6 sometimes 13.8 at idle, but when at high rpm always when to 13.2 or lower, I changed the alternator and still doing the same, now don't go higher than 13.4 at… read more
Curtis B.
Curtis B.
Retired service manager
Associate Degree
3,516 satisfied customers
I'm working on a 2007 w900. I have electrical issues. First
Hello I'm working on a 2007 w900. I have electrical issues. First off the voltage meter is reading 12 volts when the batteries have 14 volts. Next issue, if I turn lights on or hvac blower on the volt… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
3,632 satisfied customers
We have 2012 Freightliner Cascadia, volt meter show 12.4V as
We have 2012 Freightliner Cascadia, volt meter show 12.4V as truck is running. Than battery was low and truck can not start. We checked belts, loose plugs and battery terminals are tight. What can be … read more
Roy
Roy
shop foreman
Associate Degree
5,401 satisfied customers
99 Sterling w/series 60 Detroit charging around 13volts. Turn
99 Sterling w/series 60 Detroit charging around 13volts. Turn headlights on drops to 12volts. W/lights off volts drop when accelerating. Alternator sending 14volts to mega fuse, mega fuse sending 13.9… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
203 satisfied customers
have a iveco eurocargo tector 2002 battery light flickers on
have a iveco eurocargo tector 2002 battery light flickers on and off with air cond doing same when u first start from cold mainly for first 20 min then goes away also flickers a lot when in wet weathe… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
3,632 satisfied customers
Sprinter: My problem started off with a/c not seeming to blow
My problem started off with a/c not seeming to blow out strongly enough (cab not cooling down very well). I decided to leave the truck running while in a store and came back to find the vents blowing … read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
203 satisfied customers
just bought cummins isx 435 in kenworth 2006 shuts down on
just bought cummins isx 435 in kenworth 2006 shuts down on the road ,The amp reading when truck is rolling goes to 15-16 amp and then shuts down, when it comes back to 12 volt after stopping it starts… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
203 satisfied customers
99 w900l--- volt guage goes no higher than 13volts,after running
99 w900l--- volt guage goes no higher than 13volts,after running about 2 hours the volt guage will have dropped to 11.5 if you take readings at the batteries they will read 14 volts. if you shut the e… read more
Curtis B.
Curtis B.
Retired service manager
Associate Degree
3,516 satisfied customers
my 1995 international 4700 t444e is not holding a charge, i
my 1995 international 4700 t444e is not holding a charge, i just changed the alternator and that didnt work am i miss something esle that has to do with the battery going dead… read more
spankyjr1
spankyjr1
Retired
Vocational, Technical or Trade Scho
420 satisfied customers
I have a 1980 ford F8000 dump truck with a motorcraft altenator.
I have a 1980 ford F8000 dump truck with a motorcraft altenator. I took off the old altenator because it was not charging. I checked the new altenator at the NAPA store and it was putting out 13.9 vol… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
3,400 satisfied customers
hi i have a 97 t600 volt gauge drops when i turn anything on
hi i have a 97 t600 volt gauge drops when i turn anything on down to 10 volts i replaced alternator twice all batteries and cables still has same problem anyone help me please… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
3,400 satisfied customers
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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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