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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

Loses Fuel Pressure
07/18/2018 in the Technical Discussion Forum
Customer replaced In tank fuel pump, fuel pump driver module, fuel pressure sensor ( all aftermarket) engine still dies after 10-15 minuets of driving, will restart after several minutes. I confirmed the issue, I found with a multimeter that I loose ...
2001 Hyundai 1.8 engine
07/18/2018 in the Technical Discussion Forum
Hello fellow techs, I need help understanding how the timing chain tensioner holds after engine is shut off. I bought this vehicle used (90K) and it had chain slap on cold start. Replaced chain, tensioner, push arm and guide. Chain was stretched. Also did...
AIR MASS SENSOR FUSE KEEPS BLOWING
07/18/2018 in the Technical Discussion Forum
[Driveability: 15 GMC Sierra 1500 5.3L] We got this vehicle from pre-owned dpt we are a european dealer don't work on these cars. Replaced 2 air mass sensors with ac Delco parts, maf pig tail harness, open up harness as much as possible didn't see any ob...
Ac Not Cool
07/17/2018 in the Technical Discussion Forum
So I wanted to post this since I\'m not very familiar with these subaru. Relative called me after work to look at their car due to no heat. Grabbed my trusty ac manifold guages and hooked it on up. I\'m getting 30-35psi on the low side and 175psi on ...
Pulsing bearing noise, but not wheel bearings
07/17/2018 in the Technical Discussion Forum
[Chassis: 04 Infiniti G35 X 3.5L] Greetings to all. This vehicle belongs to a fellow church member who I've known for most of my life. I've serviced it fairly regularly over the past 6 years and it is a bit rusty but well kept and has 184,000 miles on it...

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