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International Automotive Technicians Network

Automotive Technical Theory Forum

Professional automotive forum for discussion of the theory of operation for any automotive system or component. Discussions include electrical and electronic theory, engine propulsion theory, fuel system theory, ignition systems theory, and much more. This forum is for experienced automotive repair professionals only, membership required.

Continue to the description of our next automotive discussion forum, the Technical Tips Forum.

Recent Automotive Discussions in the Automotive Technical Theory Forum

Cam Crank synch waveform
09/04/2020 in the Technical Theory Forum
[Driveability: 07 Hyundai Accent SE 1.6L] Working on a Accent that does not want to start, cranks OK. Originally had a P0336 CKP code and no RPM on the scanner. AM CKP sensor had essentially no pattern, so a Hyundai sensor was installed, and cured that i...
Transfer Case Gasket Purpose
08/29/2020 in the Technical Theory Forum
I was wondering why some trucks use paper gaskets between the transmission and transfer case when both of these units are sealed. An example would be 2002-2010 Explorers. The transmission output shaft is sealed as is the transfer case input. I\'ve ne...
holley 650 carb
08/24/2020 in the Technical Theory Forum
this carb [new]has 2 float windows and two fuel feeds. at idle if i pinch off the fuel line, the rear sight glass empty's of fuel faster than the front sight glass. The rear bowl should only work when the four barrels open correct? Thanks Mark.
GM dexos oil. High mileage engine question
08/21/2020 in the Technical Theory Forum
[Engine: 13 Chevrolet Silverado 1500 LS 4.8L] Mileage: 202,000 km / @ 125, 522 miles 2 wheel drive Automatic 8 foot box. Daily round trip distance: 12 km/ @ 3.73 miles Looking to get some good advice/opinions on this. I bought this truck ( to replace my...
Re: Theory and reality differences . Part 2 My question
08/21/2020 in the Technical Theory Forum
Hello my fellow Technicians and Shop Owners: In an add on to David Robin's post here is my question to y'all... David's post was very interesting and thought provoking and I too feel that there are far too many gadgets installed in today's vehicles. It is...

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