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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

Trying to remember
07/22/2021 in the HD/Fleet Forum
I think I remember a post/thread about a 4wd, Ford maybe, with a vibration issue. I have searched as best as I know how but can't find it. Would have been in the last 6 months or so. May have been on the "other" site. Will post this there also. If that pr...
service manuals
07/22/2021 in the HD/Fleet Forum
I just received a request from a contact who is retiring & has service manuals to give away. Name: Richard Stanley Ahrendt Email: [...] Message: I am retiring from truck repair & have an extensive collection of truck related manuals. Looking for someone i...
Need some advice on a 2015 Ram Promaster 3.0 diesel
07/22/2021 in the HD/Fleet Forum
Hey guys, Any of you familiar with these engines / trucks ? I am trying to give one of my customers some advice on what to do with one. He does not do a lot of diesel work but its one of his regular customers so he took it on. The van was towed into his p...
International LT PTO issue
07/21/2021 in the HD/Fleet Forum
Got a new one here. I hope someone has seen this one. I'm working on a 2020 International LT-625 with the A26 engine vin# [...] The issue is when the driver turns on the PTO switch it engages, the light on the switch stays solid for about ten seconds then...
11 F450 6.7 frequent regenerations
07/20/2021 in the HD/Fleet Forum
[Driveability: 11 Ford F-450 Super Duty XLT 6.7L] I saw a post about this recently but I don't recall seeing a solution. This truck is a 2011 F450 Powerstroke 6.7 diesel ambulance. Customer brings truck in, I determine DPF is so full it will not idle, re...

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