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Rudy states: March 24, 2008 at 3:38 pm I'm possessing a problem with my 4WD not likely into 4HI, I press the button and nothing happens. I set the truck in neutral and strike 4LO it goes in, then I press 2HI and it goes again. When I have it in neutral and press 4HI each 4HI and 4LO lights flash and then goes again to 2HI. I study that when you jumper pin 13 on the data url cable to ground, then switch essential to the ON position the lights to the 4WD buttons flash a code, so I attempted it and positive adequate a code of 2 flashed meaning motor/encoder failure.

The very first thing to examine, nevertheless, are your fuses. If there are no lights on the dash, then you may not have “logic” electricity towards the TCCM (logic electricity is +5VDC). The logic electrical power is supplied throughout the courtesy lights (do your inside dome lights come on once you open the door?

You furthermore may want to examine the wires for the encoder motor as They can be exposed to The weather and *could* be ruined by a thing traveling up beneath your car (unlikely, but probable).

That’s fantastic news! And when you’re finding absolutely free flowing vacuum, then you understand what the challenge is… you simply have to search out it! Excellent luck with that, And that i hope there is a warm garage to do it in! Allow me to know.

The vacuum for the 4WD method starts to the drivers side, goes into the vacuum actuator in the course of the firewall (but under the distributor and not easy to see — This is often what I suspect you hear — There exists a photo up about ten posts or so) after which goes towards the diaphram under the battery.

It stumped my mechanics for a long time — almost everything else was checked (they even purchased up parts with the front diff, and after that sent them again) and everything appeared excellent. The transfer circumstance was the last thing they looked You Can Try THIS Out at (don’t talk to me why — I guess the signs or symptoms don’t level to it).

Yep, you possibly have a bad TCCM, undesirable encoder motor, damaged vacuum strains, terrible actuator or a challenge along with your transfer situation — all of that has been included within just this thread.

I listen to the TCCM simply click when I have interaction and disengage. I also hear what appears like air leaking in the event the drivers door is open and 4wd is engaged.

the Orange plug wont Unplug. and all Those people little wires These are purported to related appropriate?.. i actually see just one wire absolutely from the most crucial plug. cant see where it belongs tho because i cant have the plug off. Idk any aid could well be fantastic.. and those images you reported you were planning to take will be brilliant.. Thanks.. Jay

The flashing mild indicates the procedure is trying to enter that mode. If it stops flashing prior to it does, there was a problem getting to that manner. Regrettably, I’d say halt driving it and obtain it to the mechanic ASAP, if you cannot even more diagnose the situation.

I don’t want to give you any negative information, but it surely Seems very similar to what I just went via… and it absolutely was the Transfer Situation that necessary company… terribly. My Blazer in all probability only has 10-fifteen hours over the 4WD process, nevertheless the “forks” inside the TC were badly worn and letting my gears to float, which produced symptoms like you describe (among the Other folks).

Could reduced fluid lead to a problem? Certainly. You don’t have to replace your fluid if it’s minimal — just leading it nearly the right amount. Nonetheless, I’d be asking myself WHY it’s lower.

Needless to say, your TCCM can be poor, as well as owning real troubles in the ATC alone. That’s the trouble with devices such as this — it may be Virtually nearly anything.

I just finished the house I'm now residing in — a double brick house in-built 1912 — one of many to start with homes in my location. I’ve generally meant to get some shots up of the procedure — I’ll have to try this before long.