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

	Duty Cycle fan testing with fluke 88V 04/29/2025 in the Technical Discussion Forum years back I did this and the results were consistent. now the engine fan is intermittently cutting out which can be the fan or less commonly the engine module. I drove it till it quit and pulled over and put the fluke on it. it shows the signal changes w...
	Runaway Diesel 04/22/2025 in the Technical Discussion Forum [Driveability: 15 Chevrolet Silverado 2500 HD LT 6.6L] Yes, a runaway diesel. This truck originally came in for a coolant leak which we fixed until.... Also the customer had a concern of oil consumption prior. I put it on the table since he couldn't tell...
	Runs out of fuel but still some in the tank 04/15/2025 in the Technical Discussion Forum [Driveability: 16 Mazda CX-5 Grand Touring 2.5L] Customer brought in a cranks no start. This is an AWD model with a saddle bag style tank over propshaft. Anyways we noted that fuel level was low and had 38 miles to go. Data said 15 percent fuel level lef...
	I've seen a big shift in policy at my w/shop over past 15ye 04/14/2025 in the Technical Discussion Forum G'day iATN members, by policy I mainly mean repair/recondition/machine or just replace with new. I have an on going friendly battle with my son about this, but he's the boss now and makes the calls. The photo is our scrap metal bin just before loading, th...
	2023 Ford Updates / Software 04/10/2025 in the Technical Discussion Forum Can someone tell me a way to Find out if a 2023 Ford would need Software updates ?? Does FDRS Software Bring anything up ?? Im new using the FDRS Software. I have a 2023 with a Start/Stop Complaint and wondering if these is an Update I can look up.

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