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Automotive HD/Fleet Forum

Professional automotive forum for discussion of heavy-duty trucks, buses and other on- and off-road equipment, and maintenance of automotive fleet vehicles. Discussion topics include fuels and lubricants, hydraulics, performance, on-board diagnostics, powertrain, power distribution, anti-lock braking and stability control systems, and best practices as they relate to heavy duty and fleet maintenance. This forum is for experienced automotive repair professionals only, membership required.

Continue to the description of our next automotive discussion forum, the HVAC Forum.

Recent Automotive Discussions in the Automotive HD/Fleet Forum

2000 International 4700 DT444E
12/14/2018 in the HD/Fleet Forum
[Driveability: 00 International 4700 7.3L] I'm working on a rollback tow truck, it starts and runs sometimes and will cut out (like the computer shutting down) and catch itself and continue to run. Then sometimes it dies and won't start back up. At that ...
Life-threatening news
12/14/2018 in the HD/Fleet Forum
Resetting turn signal relay on Ford Super Duty
12/13/2018 in the HD/Fleet Forum
2011- 2017 Ford Super Duty tripping body control module for truck or trailer turn signals, left or right. We are a fleet company with several hundred super duty truck, most used on right of way for pipeline construction. I have reset many trucks in our sh...
1998 international 3800 DT466E no start
12/12/2018 in the HD/Fleet Forum
[Driveability: 98 International 3800 7.6L] 1998 international bus DT466E starts up great when cold no codes ipr desired/actual matches plenty of power after running approximately 10 minutes idle, revved up, or under load the engine will shut down and won...
2010 Ford F650 6.7L Bus new problem Speed Control
12/10/2018 in the HD/Fleet Forum
Hello Guys, I just got some help to fix the doors from you guys. Thanks. I know need to fix the Cruise control or as they call it Speed Control. I do not have the Powertrain/Emissions manual which seems something I'll want to get at some point. We have th...

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