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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

Repeat Cummins 5.9 Electric Lift Pump
01/21/2018 in the HD/Fleet Forum
Hi were stating to trouble shoot a 1999 Holiday Rambler Endeavor with a Cummins 5.9 VP44 with electric lift pump ESN 56552965. The issue is repeated lift pump failure. 4 electric lift pumps have been replaced and all 4 four have failed in less than a...
Back-up work light recommendations needed
01/19/2018 in the HD/Fleet Forum
We are looking for some advice on which lights to install on the back of a trash truck. The driver has a hard time seeing when he backs up. There is a backup camera mounted about ¾ of the way up the rear tail gate. The thought is mounting a clear lig...
P244B code
01/18/2018 in the HD/Fleet Forum
[Driveability: 08 GMC W4500 Forward W4S042 5.2L] Check engine light on retrieved code P244B DPF exhaust differential pressure to high. Using Prolink ultra LMT 2016 software. Monitor differential pressure is 0.0 psi koeo, start engine 0.5 psi, indicating ...
Bendix BVA-85 brake valve actuator
01/16/2018 in the HD/Fleet Forum
Do any of your fleets use the BVA-85? Will the drivers actually use this to help perform their pretrip? Do they like or dislike them? Thank you,.
cat password?
01/16/2018 in the HD/Fleet Forum
i just stated working on med/heavy duty truck is there software that can be brought the will get the pass words needed to reset the pcm i have one that is asking for passwords to reset it because the dpf was at the highest level.

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