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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

1993 Chevrolet K1500 Neutral Safety Switch
11/17/2017 in the Technical Discussion Forum
What do these trucks use as a neutral safety switch? All I am finding on the lower steering column is a switch with a 2 wire plug for the back up lights. There isn\'t anything on the side of the transmission. Would the system just rely on the mechani...
Infotainment display screen
11/17/2017 in the Technical Discussion Forum
[Electrical: 17 Chevrolet Trax Premier 1.4L] Now that I am Retired. The Wife Got a new 2017 Chevy Trax. Unfortunately the Infotainment Display Screen is blank or pixilated when cold. Works fine when warmed up. The dealer has tried twice to fix the probl...
Turning GM radios into bricks
11/16/2017 in the Technical Discussion Forum
[Electrical: 04 Chevrolet Trailblazer EXT LT 4.2L] Getting beat up on this one and hope some people have some new ideas. Local used car dealer brought this vehicle over with a used radio in it that was locked and wanted unlocked. No problem I said since ...
Need Pico waveform LT1 Optical Dist. Known bad
11/16/2017 in the Technical Discussion Forum
Any one have a Pico waveform of known bad optical distributor waveform? Looking for file with intermittent drop-out. Many thanks.
2001 lincoln tc hvac question
11/16/2017 in the Technical Discussion Forum
Crazy question I know but I just popped a heater core in now the customer complains about weak air flow from dash vets and the vents that blow on the door glass . I noticed the air flow is stronger until you hit max temp then it gets a little on the weak ...

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