Your remark about stepping into slippery conditions and also the 2Hi light-weight goes out… The one thing I can visualize is the TCCM (Transfer Situation Control Module) might have corroded wires, which was the first topic of the thread. Does this come about mechanically any time you enter into slippery problems?
You may also unplug the TCCM and faucet around the encoder module to determine if it may be trapped (a heat garage wouldn’t harm either!) — depart the TCCM unplugged for at least two minutes, then plug it back again in. Then, transform The important thing on to off five moments, then to on and take a look at it.
I have change the sprint selector, checked out the tccm module it clicks but will never appear out of lo four wheel drive, I disconnected the vaccume module in the middle of the fireplace wall.
If I’m not mistaken 1999 and back again, the vacuum switch is on top of the transfer case. 2000 and up it’s over the firewall. If it’s in addition to the TC, it appears like a nut with three hoses sprouting from it.
Hello Les — I didn’t understand that Raymond had uploaded them to some file server — I thought they were being part of a web page that saved that information and facts (ie.
That’s odd that the light will come on instantly, without the need of flashing and without having engaging the 4WD. The sound mild coming on at 4Hi will likely be an indication the technique is practical.
As I mentioned to a poster previously mentioned (two up from this one), it sounds to me like it could be a button assembly, wire amongst the button assembly and TCCM or possibly a TCCM trouble.
PS – nope, no other identify for the Encoder Motor, which i know of. It’s Situated about the aspect with the transfer scenario and it what does the Actual physical shifting between “modes” (2Hi, 4Hi/4Lo).
If it was the actuator, I’d Feel the front conclusion would pull to your still left… the actuator controls the appropriate front axle only (AFAIK). The still left is often engaged Along with the front diff.
I really sat right down to do a little work on the website yesterday, in addition to updating my backup drive — that’s when the problems commenced. Anyway, just before I transform this write-up into a rant… I contain the schematics sitting appropriate in front of me, ready to be scanned when I'm able to get this equipment restored.
Items of metallic had fallen out. Way too my amzement the two blazers had a similar issue it absolutely was a thrust washer that that goes driving the axle courier connector functions like a spacer. It is possible to only invest in these from the dealer the come in whats referred to as a washer package $10.40. Im publishing this also aid anyone out who may have exhausted by themselves thinking about what Every person tells them as well because the problem can be interior within the locking hub. I've a diagram if anybody has an analogous trouble. Sick mail it to you should you email me at firstname.lastname@example.org
Sure, the website remains to be Lively — actually, I can’t imagine how Lively (for my little blog web page) it has been in the last few months — and all about the Blazer!
It sounds much more like “mechanic speak” to me — but who am I? What accurately do they declare to become the challenge with the TCCM? What Portion of it's terrible?
I have an ’02 Chev 2500 that has a manuel 4X4 shifter. My issue is the fact that 4hi won’t engage. 4lo appears to do the job just fantastic, axle engages, lights to the sprint occur on, I can hear front axle actuator partaking, but when I attempt 4hi almost nothing appears to be news to occur.