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International Automotive Technicians Network

Automotive Technical Discussion Forum

Professional automotive forum for all types of vehicle repair discussion that does not fit into one of our more specific technical forums. Discussions include both OBD and OBD2, engine performance analysis, diagnostic best practices, service information, vehicle standards such as J1962, J1939, J2534, OBD2 modes (e.g. MODE$06), ignition and fuel system analysis, alternative propulsion (e.g. hybrid, electric, natural gas), and more. This forum is for experienced automotive repair professionals only, membership required.

Continue to the description of our next automotive discussion forum, the Technical Theory Forum.

Recent Automotive Discussions in the Automotive Technical Discussion Forum

Chinese ICE hits 48% efficiency
04/21/2026 in the Technical Discussion Forum
Interesting read. Old timers might remember Smokey Yunick's version to capture waste heat with the Pontiac Fiero 4 cylinder motor, 1980's. " ost-efficient-engines-ever" "- yunicks-hot-vapor-engine-[...].html".
2001 Mazda B3000 SE 4x4 (Ford Ranger)
04/20/2026 in the Technical Discussion Forum
So this vehicle has low speed ABS activation between 28 and 35 MPH. If coming to a stop, it will have low speed activation and increased stopping distance. Upon *hard* braking, it ABS activation occurs and it pulls to the right. Prior to these symptoms oc...
Simple Start Issue Im not understanding
04/18/2026 in the Technical Discussion Forum
[Electrical: 11 Jeep Grand Cherokee Laredo 3.6L] Vehicle Towed in with major engine Issue, When it arrived the starter Cranked over no problem. The engine needed to be replaced so we installed a Used Engine. After the Install We have a NO CRANK with NO C...
Current Toyota Reflashing Techstream ? GTS ?
04/16/2026 in the Technical Discussion Forum
Im hopeful someone can just guide me hear as Opus Support was not much help Cardaq M Im understanding that Techstream is NO LONGER being used and GTS Is the software to use now ?? For reflashing ?? So Download GTS and will it walk me through REFLASHING ??...
New car warranty weasel out attempt
04/13/2026 in the Technical Discussion Forum
G'day iATN members, this 2021 Mazda BT50 4x4 is my personal workshop ute, it ran out of warranty on the 17th of March 2026. I reported to the dealer back in mid Jan 2026 (the same dealer I purchased the vehicle from) that I could smell refrigerant oil com...

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