Kyle, it is possible to article as you like.To include details, my supplier was speaking about replacing the 2 Laptop or computer modules linked to the 4wd, They said same as once they changed them in ’05 that each would need to be replaced at $1060 plus tax and which was a mininum.
Like I explained, I'll try to remember to get some much more photos — ideally this can assist you obtain your module although! Regards;
Additionally you want to check the wires at the encoder motor as They may be exposed to The weather and *could* be damaged by one thing traveling up below your car or truck (not going, but attainable).
Some how the process thinks the 4Lo button is currently being pressed, Which’s what you have to come across. Sadly, intermittent troubles will be the toughest to find.
Ryan says: April 2, 2008 at 9:24 pm Thanks with the reaction to my write-up previously, And that i had pep boys do a vacuum test about the method and so they reported every single factor was seemed to be Okay, so I purchased that four wheel drive swith from napa and mounted it,(it went into the front axle correct where the cable from the actuator attaches), nonetheless no luck. so i could see some form of sensor in addition to the transfer case with 3 vacuum lines connected to it, so i changed i, and Once more still absolutely nothing, so I've a few much more concerns…their is yet another sensor within the tail pice from the transfer circumstance, I had been explained to it is the velocity Handle sensor, could that be the condition?
Another wire I'd personally Look at would be the A/T (Automated Transmission) shift lock change — This is certainly wire #31 which is light environmentally friendly having a black stripe (you will discover much more internet pages in the schematics above… the primary is often a hand -created web site from the TCCM connector pinout). This wire should have voltage applied to it at particular periods — regretably, I haven't had to diagnose that Element of the process, so I don’t know if it should be +5VDC or +12VDC (but It will likely be one of them!
I ment to mention, I had my transmission rebuilt two months back and the 4wd labored then. I place my Blazer on jack stands and began tracing the hissing seem (air leaking?). I’ve discoverd the hissing sound is coming from your transfer situation.
It could have other elements, that aren't around the standard 4WD program, That could be the reason for your troubles.
Hopefully, this will set you off in the right direction. You should allow me to know what you find as it could be of use to another person listed here Later on.
With the vehicle click leveled, the thrust line has to be produced noticeable and usable. I ran a length of string under the vehicle and prolonged it out the front and back and hooked up it to 50 percent gallon steel containers. The string must be immediately below or touching the thrust line marks. I utilized a little plumb-bob in the back of the vehicle and a small machinist's square while in the front to insure this. This will likely then be my thrust line by which all wheels is going to be aligned to. Notice: you should not use your vehicle's overall body as a reference (IE Mazda emblem) because the entire body tolerances are literally very loose and your body will not be centered to the suspension centers. The difficulty has become that this string is extremely hard to evaluate off of, it'd in addition be buried underneath your garage. Another matter you will require is another set of strings hooked up to jack stands or a little something equivalent that can have the strings approximately hub height on both sides of the car.
The vacuum change shouldn’t make much sounds, not more than enough to be bewildered with a little something jogging. What I believe is you might be Listening to the encoder motor to the transfer scenario trying to change it into 4wd.
There’s not way more which i can give you, other that to mention I'll article the schematics later on today. From there, at the least you may know what wires go where and you may exam them.
I really don’t hold the experience to convey definitively Sure, or no — but I wish you the best of luck. You should, allow us to know how you make out.
In case you are confident that the signal in the button is achieving the TCCM, then both the TCCM is terrible, or perhaps the encoder sign lines happen to be damaged. All over again, I’d really have to test wires for being good, but it seems (from the schematics) which the encoder sign traces are sizzling (pull-up resistors are being revealed on Every single sign line) and they are pulled small to activate a selected method. Pins 26 as a result of 28, around the TCCM pinout, are definitely the encoder sign lines.