Hey Everyone, just wanted to take a minute and do a little write up on why i explained this video the way i did.
This Dodge CAD system is a simple system but like anything there is a lot of stuff that can go wrong that you overlook. I explained this video this way because these are all troublesome areas i have encountered. Sure for the guys that know this system well are going man this guy is all over the map explaining... Here is why i did it the way i did. For one i could have started out saying go to the centre axle disconnect and feel for vacuum down each line. If there is some on one line but does not switch when shifted to 4WD replace the vacuum switch. If there is vacuum that switches when 4wd is engaged but no 4wd light on the dash then replace the Centre Axle Disconnect. In a perfect system that would be an ideal diagnosis and this would be a very simple and easy 5 minute video explaining it and diagnosing it. However with all these trucks being around 25 years old a lot of factor's come into play with everything being aged with stuff being rusty, plugged, swollen rubber, collapsed lines etc. there is endless little stuff to look at. That is why i explained everything the way i did and i hope you can pin point your 4WD issue with this video. The camera was being stubborn and i know i had it all over the map but i feel for educational purposes since i got the camera into these hard to reach area's it will make diagnosing easier for you. Josh
If you have vacuum to your axle and the vacuum is switching fine between lines this will likely be your issue:
www.genosgarage.com/product/d...
If you have vacuum on one line at the front axle and it does not switch when 4x4 is engaged this is likely your issue:
www.genosgarage.com/product/d...
If you have vacuum to the switch and it is switching but vacuum is weak coming out but strong going in to the switch you will likely need this:
98-01 trucks : www.genosgarage.com/product/d...
94-97 trucks: www.genosgarage.com/product/d...
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25 сен 2020