× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network

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

Identifying Rear axle assembly
02/19/2019 in the HD/Fleet Forum
[PowerTrain: 82 Ford F700 8.2L] I need to find a replacement rear axle housing assembly. It seems to be a Rockwell H172 third member. The third member is good, but the housing is ruined. Anyone familiar with these Rockwells. It is a single speed, hydraul...
Sway Bar Links and Bushings
02/17/2019 in the HD/Fleet Forum
Is there another source for front sway bar bushings and links which apply to Frieghtliner M2-106 business class units. Our derrick and jib line trucks seem to waste the front bushings on the links every year . The parts from the dealer do not last long. M...
P120F Fuel Pressure Regulator Excessive Variation
02/15/2019 in the HD/Fleet Forum
[Driveability: 08 Ford F-550 Super Duty XL 6.4L] The above vehicle came in with the complaint of it going into reduced power mode, codes stored were P2269 WIF, P0196 EOT range, and the above listed code P120F Fuel Pressure Regulator Excessive Variation. ...
Terminal Set
02/14/2019 in the HD/Fleet Forum
Looking to see if anyone knows of a terminal master set or something like that for heavy trucks? Seems like every manufacturer has their own terminals they use and always running into a problem repairing plugs etc.. I see GM kits etc.. looking for a freig...
SPN 157 FMI 17
02/12/2019 in the HD/Fleet Forum
[Driveability: 09 Freightliner Business Class M2 8.3L] Guys: First off, this is a vehicle that was donated from Daimler, so we have an 09' model with a SCR system. The students have introduced air into this system, so we had to make a "garden sprayer" pu...

Automotive Sponsored Discussion Forums