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I cleaned the TCCM contacts, then was in a position to hear it simply click, but alas, the 4 Hello and 4 LO lights flashed when I tried to interact them. Rats! Action 2, checked many of the fuses.. All Okay, then located a broken actuator vacume tube broken near the actator itself.
numerous people instructed me that it was most deffinetely the encoder motor. so I attempted to vary it and when i did it put the transfer scenario into nuetral along with the car goes nowhere and on top of that the 4wd mistake ligth on my sprint will not head out.
That’s magnificent! Well, I do think you’ll take the cake — I don’t Assume we’re likely to see a maintenance for almost any less than seventy five cents! Superior do the job!
I don’t Consider this is likely to get your trouble as it is best to possibly hear the encoder motor running (changing the travel manner from 2Hi to 4Hi/4Lo) — but there is a sensor on the hub to tell the TCCM when it can be engaged, so it may be challenge.
My very first thought is TCCM problems. Disconnecting the battery is an ordinary course of action to reset any “OB (On-Board) computer†(even though it’s normally encouraged to disconnect for half an hour — simply just which means you don’t hurry it and it doesn’t reset). So, what you’re executing every time you do This is certainly you will be resetting the TCCM. From there, it really works, however, you never ever know for how much time.
I examined it and it really works. I encountered the very similar issue Spencer did which is the answer dealership explained to me. A clear-cut solution.
Yep, you both Use a negative TCCM, terrible encoder motor, broken vacuum lines, terrible actuator or a difficulty together with Try This Website your transfer scenario — all of that has been lined inside of this thread.
I've Chevy 2001 Blazer. The challenge I'd is always that I'm able to’t switch on the 4Hi. So I went to dealership. The repair costed me $900 to exchange the TCCM.
As for shifting outside of 4Lo — there’s only one much more issue — you need to be going fewer than two MPH (3.two KPH), having a “rolling engage†remaining most well-liked (ie. don’t make this happen when stopped). It is a prevalent miscalculation produced when people have a “shift on-the-fly†kind method.
two) the vacuum switch also communicates Using the TCCM — no vacuum along with your lights will most likely flash frequently whilst trying to interact 4wd, but gained’t engage until eventually all 4wd parts, once again, talk to one another.
It appears like the gears are partaking inside the transfer case but I don’t listen to the actuator partaking as well as the lights within the sprint don’t arrive on. Any recommendations?
Sherry claims: September 22, 2008 at three:15 pm I really would like I found your blog prior to I replaced my tccm. I live in Canada and my 4wd stopped Functioning. I have a 2003 blazer and where I Are living 4wd is surely an absolute have to. I took it to some shop and they may not discover the situation, so then I took it to your dreaded dealer. They gave me a quotation of $1800.00 to interchange my encoder motor and transfer case Handle module. I absolutely could not manage this so I took the estimate and located the components on ebay, then I took it to the first store and compensated them $200 to setup every thing.
On talking to some yards, they apparently get these modules out ($$$$$$$) and simply Slice the connector off and market it Along with the module. So, that basically only leaves me to a scrap garden that allows you to stroll around… and haven’t eradicated the module… don’t wanna go there.
Now, There's a sensor about the front, proper hub to detect when it really is engaged — I haven't tried using this, so I don’t know one hundred% needless to say, but If your front, right hub will not be participating, the system must detect this and never enter 4WD.