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International Automotive Technicians Network

Professional Automotive Discussion Forums

Technical, Shop Management, and Auto Industry Discussion

There are over 20 different automotive discussion forums in the iATN members only area, with 2.6 million messages and roughly 500 posts daily. You may discuss all manner of automotive topics with other automotive professionals in a threaded discussion format as shown in the screen below. The automotive discussion that takes place ranges from very technical in nature to repair shop management, automotive industry issues, and everything in between. Members upload waveforms, scan data, photos, videos and other documents and discuss them directly in forums. Below, your can see a sampling of the latest topics being discussed on iATN.

Recent Automotive Discussions in the Forums

Older transmissons and servicing
04/10/2026 in the Transmission Forum
Im definitely not a transmission expert, but I could use the wisdom of some here. I have an 07 avalanche (4L60)with 270KM on the clock, I dont think the transmission has ever been serviced, it is getting dark and has a very slight smell, but not obviously...
ECV, ECV Diagnostics Aids/Tools. Latest R-134a Type News
04/10/2026 in the HVAC Forum
ECV, ECV Diagnostics Aids/Tools. Latest R-134a Type News Do you need an ECV diagnostic tool? Why not just command an ECV with a scan tool and not buy a separate ECV diagnostic tool? Is the compressor you are testing, ECV "positive side control, or ECV "ne...
Low Engine Vacuum
04/09/2026 in the Technical Discussion Forum
[Driveability: 04 Lexus RX330 3.3L] Vehicle came in for stalling on acceleration and hard to re-start. There are no trouble codes stored or detected. It has 241k miles on the clock. It will idle ok, but if you go wide open throttle it will take to the co...
Gripedge RPT tools
04/09/2026 in the Tool & Equipment Forum
Has anyone pulled the trigger on these Gripedge fastener removal tools, and if so are they worth the extra money. I saw them at the AAPEX/SEMA show back in November, but have not decided if I want to spend the money on them. They are a little pricey compa...
belt noise
04/09/2026 in the Technical Tips Forum
I got away from spraying anything on a belt. I started using baby powder for my gloves. Not with the engine running because it goes everywhere. Terrible mess. With the engine off shake some on an easy pulley then start. The powder will track around then y...

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