I'd Examine your Big orange wires as you might be having +5VDC logic because the lights are coming on on the dash. The +12VDC is useful for the encoder motor — Test to make sure you have +12VDC at both the big orange wires (These are right beside one another… and there are two substantial black wires beside them which might be floor). Notes: All black wires are ground — all orange wires are electric power (scorching). There is a 10A fuse (#fifteen) to the 4WD technique, located in the fuse panel. There exists a 20A fuse, Situated beneath the hood, that is definitely also for that 4WD program (I’ll really need to lookup the fuse number). The 4WD system also pulls from your 10A courtesy lamp fuse (#ten).
If I force the four-Hello or 4-lo when in park or push, I get absolutely nothing. No clicking, and the light will not gentle up. However, if I get it done from Neutral like I just defined, it really works like a allure as well as lights get the job done also.
As for The solution for your question — sorry, I don’t possess the foggiest as my Blazer doesn’t contain the “Automobile†characteristic. Ya gotta possess one of these fancy trucks! You realize what I’d say while? If it ain’t broke, don’t contact it! Thanks for your personal remarks!
So, devoid of physically eradicating the encoder motor module and manually shifting the Transfer Case into 2Hi, unfortunately, it’s trapped in 4WD till you can find it to your mechanic.
What it is is often a nut no bigger than my thumb with three vacuum traces into 1 close and what appears to be a spring loaded ball within the opposing end. The one which I took off my blazer I can easily press this ball out and in with the casing.
I found a Discussion board where a man had an issue where his 99 Blazer would not change to 4HI. When he pushed the 2HI button, The sunshine flashed but practically nothing occurred.
You could possibly also unplug the TCCM and faucet over the encoder module to determine if it may be trapped (a warm garage wouldn’t hurt possibly!) — go away the TCCM unplugged for a minimum of two minutes, then plug it back in. Then, switch The important thing on to off five occasions, then to on and try it.
It may well have other components, that are not around the standard 4WD technique, Check out here that may be the cause of your issues.
Hi Les — I’m about to really need to say no as Raymond not has them — once again, I apologize for not backing them up.
As I have mentioned often times throughout the three internet pages of the submit… every little thing which i understand about the Chevy 4WD system continues to be posted right here. I haven't any more facts to supply. I'm not a mechanic.
That’s a fantastic story! Many thanks for sharing that with me… that's all I would like! I’m not requesting something, but hearing stuff similar to this will make me come to feel fantastic. Great which i was capable of assistance another person out… and preserve you some money in the procedure.
It’s difficult to say what your problem is. I’d get started with investigating the encoder motor — if you can hear it run briefly, then what I would do is just take it off the transfer circumstance and take a look at to interact 4WD then — view the motor and find out what it does — check out it in all modes (2Hi, 4Hi, 4Lo) and view the motor. If that seems to be Alright, the subsequent detail I would do is to try to manually change the TC With all the “tab†that should now be sticking out of the aspect on the TC (underneath the encoder motor that you choose to taken out) — it is this tab that the encoder motor turns to have interaction the several modes.
Just a quick Observe… When your process only engages fifty percent way and kicks out, it will also be brought on by “plastic†bushings inside the transfer circumstance that wear out.
I can right here the encoder motor activating and deactivating. I ponder Should the mechanics did anything to your transfer scenario in the course of rebuilding with the transmission. In any case, what can be building this hissing sound in or near this transfer case.