denes states: June eight, 2008 at four:28 pm The encoder motors normally fall short within the 2002+ autrotrac (four 4wb buttons) blazers and s10 p/u’s. A printed circuit board Get in touch with “cooks out” Within the encoder motor confimation switches. Just so you already know, the A,B, and C switches explain to the TCCM what basic shift postion they’re in. the P switch is often a singal on the TCCM when to halt the motor (closing park postion). I'm quite certain A is 2wd, B is 4wd hi, and C is 4wd lower. Should you’re a little bit intelligent w/ electronics, You may as well repair the TCCM problems w/ new relays.
After you jack up the car, make sure it is very steady before you climb underneath, and in particular before you start shaking your wheels to check the suspension. If the vehicle have been to drop off the jack stands, you might be terribly hurt or simply killed.
I can explain it a little bit more for you although! The “kick panel” is located around the passengers facet, front seat, proper in which the travellers right foot would rest. When you’re sitting while in the passengers seat, “swing” your proper foot from still left to proper even though retaining your heel on the ground.
No trouble whatsoever… which was my sole intention… to help you Other individuals with the same dilemma (and conserve a ton of money as well!).
If I place the truck in neutral and press the 4lo it lights up as if it is Doing the job. Neither a single appears to do the job as I obtained caught in my driveway. Be sure to assistance.
My initial concern can be, what are the lights about the dash performing (the 4wd pushbuttons)? And next, what year of auto are we speaking? (I’m also assuming we’re even now referring to a Chevy Blazer.)
Maintain your eyes on eBay — I just saw a person go for $135 that a guy bought completely new six months ago and is particularly scrapping the truck. You'll find them in the Chevy dealer, but They are really proper round the $500 mark — ouch!
If I'm not mistaken, You can't very clear codes oneself — you need to have another person get it done by using a scanner (ie. SnapOn). I might be Completely wrong, but I don’t think so — I've a tranny store within the spouse and children that has a person, so I’ve never experienced the necessity to analyze it any more.
If you don't hear the “simply click-click”, you have a poor relay in the TCCM. The excellent news — you can find a substitution relay at your local electronics retailer and change it inside the TCCM. You'll need a soldering iron and some essential electronics capabilities, but it is vitally easily accomplished (a couple of points to unsolder after which resolder the new relay in place).
Visitor suggests: December sixteen, 2008 at 6:41 pm very well i introduced my truck in and informed them they could change the encoder motor, not sure what was just wrong with it, they reported it had been enguaging only half way then kicking back again out. properly undecided what could cause this, i questioned them to examine all wires towards the tccm and see Visit THIS Site When the wiring may be the challenge, and they mentioned that if they preset my tccm last 12 months they ought to have also replaced the encoder motor.
PS – the “encoder motor” may be the component that “holds” your TC in the assorted modes (effectively, that’s not 100% precise possibly — the encoder motor shifts from 1 manner to the other — sections In the TC basically “keep” you in that method — in my scenario, it had been a set of “forks” with plastic bushings that wore out — which doesn't seem like your problem).
I’m not completely sure what brings about the lights to easily blink then not go into equipment. The very first time I put the Blazer in 4Hi this Wintertime, it did just that…. I had to place it in neutral for it to enter 4Hi. Given that then, it's going to shift on-the-fly. Why? I don’t know. There should be sensors possibly within the TC or perhaps the encoder motor to Enable it know when it's got achieved it’s supposed manner… I’d suspect it’s A part of the encoder motor, but I’m just guessing.
Unless of course you have got expertise performing suspension perform, you will likely really need to consider your automobile to a specialist mechanic.
Chris suggests: February nine, 2008 at 4:00 pm 1st I have to say that this blog site rocks!! I think you might be accomplishing an magnificent assistance. I've read through a lot of of these challenges but have not located one that matches mine particularly. Some time back experienced the vintage encoder motor difficulty where the truck would go into 4-lo or 2-hi, but would flash and default to two-Hello when 4-hi switch depressed. Perfectly Test vacuum actuator below battery, Tccm, encoder motor plug,etcetera and all was good. Since my battery was disconnected the DTCs ended up reset and lo and behold my 4WD was Performing once again. When 4wd was disengaged I might have a whirring sounds out in the entrance close, like 4wd wasn’t completely disengaging the front diff. I'd personally quit the motor vehicle for a few minutes and it looked as if it would disappear. Another working day, on just how to operate the sounds wouldn’t go away, so i tried putting it out and in of 4-hi a few occasions, until finally it blew the fuse.