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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

Smoke opacity test protocol
05/26/2017 in the HD/Fleet Forum
I'm involved in offering input to our DEP (environmental folks) whilst they develop software for conducting emission testing in a new program that will begin in October 2017 At issue is the protocol relating to releasing the parking brake during the throt...
Misfire with white smoke
05/25/2017 in the HD/Fleet Forum
[Engine: 04 Freightliner M2 106 7.2L] We have the above mentioned freightliner,cat 3126 esn [...].My cust has replaced HP pump 6 injectors chasing this problem.When warm, intermittently,the eng will break up and misfire with white smoke and set circuit c...
2005 Freightliner
05/25/2017 in the HD/Fleet Forum
[Transmission: 05 Freightliner M2 106 6.4L] Anybody speak Mercedes Autoshift? This unit has a 6-speed AGS trans, G85-6 with Smart Shift paddle. We had the unit out to replace a couple of leaking oil lines. That process went smoothly and without issue. Ot...
Daewoo forklift differential over flowing
05/25/2017 in the HD/Fleet Forum
A customer has asked us to repair his forklift, but before we commit I would like more information about the job. It is a Daewoo Forklift G20E-3, Serial # CX-01550. The concern is that the differential has fluid coming out of the dip stick opening. Our as...
Injector orings failing
05/24/2017 in the HD/Fleet Forum
We have a 2003 international 7500 with a dt530. We put a reman. engine from international in it 3 month ago with reman injectors. the truck came back yesterday ( it has gone under 3000 mile )as a no start. we found the upper orings on one injector had fai...

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