My 2 wheel drive would engage but not my four. I examine the tccm as well as the vaccum swap and also to my specific amazement the vaccum line had damaged off the change. I set this challenge and now my 4 wheel push is working all over again. The information you posted saved me a visit to the vendor!!!
The sole difficulty you'll have is since you have two wires disconnected, you will have to know which a person goes to which hole (terminal). In case you tell me the colors, I am able to attempt to locate them in your case (be unique with wire hues — ie. white with light environmentally friendly stripe, pink with darkish blue stripe, and so forth.).
I even now don’t have pictures but, I’ve just been hectic with a ton of things at this moment — but I am able to go over some matters so that you can Verify/do.
I already replaced the balljoint along with the tie rods, but my front passenger wheel continues to be off. What else am i able to do to fix the alignment.
The opposite wire I would check could well be the A/T (Computerized Transmission) change lock swap — That is wire #31 and is particularly mild environmentally friendly with a black stripe (you can find additional internet pages with the schematics previously mentioned… the primary is actually a hand -written web site of the TCCM connector pinout). This wire should have voltage applied to it at specified moments — sadly, I haven't had to diagnose that Portion of the procedure, so I don’t know if it should be +5VDC or +12VDC (but It'll be one of them!
I'm acquiring a dilemma Together with the four×4 on my 2001 Chev Blazer. I was trying out your blogs and I picked up a couple of recommendations on the trouble, but I still can’t manage to get it far too do the job. At the beginning it had been making a clicking seem so I took it in into the shop along with the mechanic managed to have it to return into 2HI but suitable after that when I attempted to change from 2Hi to Car trak it went ideal again into 4 Hello.
It Appears extra like “mechanic converse” to me — but who am I? What precisely do they assert to get the trouble Using the TCCM? What part of it is lousy?
PS – nope, no other identify with the Encoder Motor, that I know of. It’s Situated over the side with the transfer circumstance and it Exactly what does the Actual physical shifting between “modes” (2Hi, 4Hi/4Lo).
Sherry says: September 22, 2008 at three:15 pm I actually wish I discovered your blog site ahead of I changed my tccm. I reside in Canada and my 4wd stopped Doing the job. I have a 2003 blazer and the place I Dwell 4wd is surely an absolute need to. I took it into a shop and they may not work out the condition, so then I took it towards the dreaded dealer. They gave Go To THIS Web-Site me a quotation of $1800.00 to exchange my encoder motor and transfer circumstance Handle module. I undoubtedly could not afford this so I took the estimate and found the parts on ebay, then I took it to the initial shop and paid them $200 to setup everything.
Hey Doug — many thanks for the data! That makes a lot of feeling — now, if we can only discover the switch! If you think about it, the switch you talk about could just be the basis of the condition for any handful of those who’s 4WD won’t have interaction.
Maintain on to that believed for a few days — some software is on just how that will permit me to retrieve the files.
Reading your first ideas on it, and I’d should say I agree with you. Does the 4Hi mild occur on if you 1st turn the key on the ON place without the need of seeking to start out the auto?
Doesn’t seem good. It sounds like what I just went by way of — and it turned out for being the gears/forks from the transfer scenario. I initial found which i had problems coming out of 4WD, then I started out noticing 4Hi “slipping” out and in.
Alright, so how the heck am I planning to fix this? I can only imaging what GM would want to do (read through as “harness substitution”… $$$$$$$$$$$$$$). And from inquiring about about obtaining a alternative plug, my only choice could well be a scrap garden.