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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.

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Recent Automotive Discussions in the Automotive HD/Fleet Forum

Alison 35-00
09/20/2017 in the HD/Fleet Forum
[Transmission: 02 International 2654 8.7L] 2002 International, Vin [...] I am chasing my tail on this and I really need some help. I have a code 35-00 Loses 12v battery power before losing ignition power. I have a solid 12 volts to the transmission ECM, ...
Code 2387 Cummins 6.7 cm2250
09/20/2017 in the HD/Fleet Forum
We have a Freightliner bus with a 6.7 cm2250. Came in with numerous 2387 events and 1 3616 event. Cleared codes test drove light came on numerous times and rechecked codes, 2387 with 19 events. Code says vgt not responding or out of adjustment. I have had...
ACM Permanent codes for Aftertreatment
09/19/2017 in the HD/Fleet Forum
[Driveability: 14 Freightliner 114SD 12.8L] Detroit DD13 -removed complete after treatment system to be cleaned. moved vehicle out to parking lot, drove vehicle back into parking lot -reinstalled complete sysem Now all codes are permanent for all the sen...
John Deere 344H does not move
09/18/2017 in the HD/Fleet Forum
Ser # 9605939 We had a John Deere 344H dropped off. It was towed in. We have power steering which has its own hyd pump but we do not have any bucket/boom functions or any drive functions. I placed a pressure gauge on the test ports of the main pump but I ...
Where to get HD/Fleet repair/service info
09/18/2017 in the HD/Fleet Forum
Needing some assistance, we are getting more involved with HD trucks, motorhomes and fleets. Is there any service that provides repair info, specs and rates? Have been having hard times finding specs during diagnosis at times. Thanks.

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