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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

04 Honda CRV Misfire
04/07/2026 in the Technical Discussion Forum
[Driveability: 04 Honda CR-V EX 2.4L] I have a 2004 Honda CRV 2.4L that is misfiring on cylinder #1 at all times. Another shop replaced ignition coil, spark plug and injector. I swapped coil and plug and verified the injector is working by listening to ...
Front pad replacement issue
04/06/2026 in the Technical Discussion Forum
[Brakes: 21 Ford Police Interceptor Utility 3.3L] Vehicle needed front pads- did not realize that system has to be put into service mode, until we opened the front caliper bleeders and pushed the pistons in. Now we realize that it needed to be in brake s...
Right to repair for military equipment?
04/03/2026 in the Technical Discussion Forum
Just came across an article saying that the military cannot get info to fix their own stuff due to intellectual property rights reserved by the manufacturers. It was on one of those pop up news things that distracts me all day long on something called "ta...
Clearing trouble code
04/02/2026 in the Technical Discussion Forum
Are any scan tools, possibly factory, that will allow you clear just the trouble code for the problem you repaired without having to run all the monitors again.
Fuel line retainer clip
03/31/2026 in the Technical Discussion Forum
[Driveability: 08 Dodge Ram 2500 ST 5.7L] The pressure fuel line coming out of the fuel pump has a u-shaped retainer clip(black) that broke in half. Can't seem to find one, even the Dorman stuff is unclear about a replacement. It kind of looks like the o...

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