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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

shift inhibit 2015 t300 64k
11/17/2017 in the HD/Fleet Forum
I have this vehicle, [...] frtlnr Allison 2000 and pi 8.0 lt lpg engine. intermittent trouble with trans unable to shift into drive or reverse due to shift inhibit. my 2015 Allison software wont connect due to newer version required even thought truck is ...
Exploded clutch in 5 miles
11/15/2017 in the HD/Fleet Forum
[PowerTrain: 09 Kenworth T800 15.0L] 2009, KW T800, Cummins ISX550, 18 speed 1850TQ, .. Blew apart in about 5 miles and 40 minutes mostly idleing. We installed an Eaton dual plate 6 button, clutch 15.5" 2050Tq rating. Drove 4 miles hooked A Peterbilt to ...
Diesel air compressors for lawn irrigation clean out
11/10/2017 in the HD/Fleet Forum
Does anyone work or have any info on these types of units? I've got myself into a trick bag and am trying to help out a good friend. I have fixed a few before but only simple air leaks and maintenance type stuff. Any help would be appreciated.
9 PIN Deutsch connector with grey end
11/09/2017 in the HD/Fleet Forum
vehicle is a 2013 f750. We are looking to upgrade our capabilities on this vehicle as it is one of our crane trucks for servicing the steel mill. I am looking for the 9 pin Deutsch connector with the grey end or a wiring diagram of this connector. I have ...
2008 International no crank signal active code
11/09/2017 in the HD/Fleet Forum
[Electrical: 08 International ProStar Pro LF617 15.0L] I have a code 36 ECM power range low and the starter is not seeing a signal from the ECM. The model truck is a Durastar with a Maxforce this has the Eaton manual automatic with a code I can't identif...

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