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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

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.
Crane needed for 12' flatbed C3500 GMC
01/16/2018 in the HD/Fleet Forum
I'd like auto rotate, extend & lift (raise) Thanks Ken.
ISB6.7 cm2250 2012 bus code 3575
01/16/2018 in the HD/Fleet Forum
Have blue bird vision with a ISB6.7 CM2250. code active is 3575 def pressure sensor data valid but more than normal operating range. Code setting condition is pressure above 159psi for more than 20 seconds. Tech tips is return line blocked/restricted or m...
Turn Signals and Brake lights
01/12/2018 in the HD/Fleet Forum
Vehicle is a 06 Mack Granite. I normally don't do H.D. trucks So I am basing my diagnostics for this problem on my experience doing light truck/autos. The truck had no brake or signal on the left side rear. I had both sides brake and signal at the trailer...

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