I'm considerably indebted to you. My new spouse’s 2000 Blazer lost her 4wd a yr back. SHe found your Site with regard to the TCCM module corrosion, printed off the information and her mechanic fixed it. He was also impressed.
Not surprisingly, I am able to’t promise This really is your challenge, Particularly over the internet, and I hope it isn’t — but I would've it checked out skillfully.
In the event the transmission engages, though the front hub does not, you have a vacuum difficulty. Now, this does not always mean there is a issue with the Bodily vacuum traces, or vacuum alone — it *could* mean the vacuum switch isn't getting electricity, which would not permit it to show on, which might develop the outcome of no vacuum for the diaphram and, properly, Should you have no vacuum for the diaphram, your front, appropriate axle will no interact.
Scott claims: January 2, 2009 at 8:03 pm Okay no corrosion no wetness in any way also when i question it to shift i nevertheless listed here it click at the tccm. Also a whole new issue I forgot it must be in nuetral to shift into or out of 4 low when its in nuetral i may here the little electric motor over the transfer scenario my up coming assumed is to eliminate the motor with the transfer circumstance to determine if I am able to shift it maunlly but that entails alot of dissmanlting there’s a lot of things in the way is this important.
As for the internal workings from the transfer case, I leave that to the pros so I'm able to’t response that question either.
Regrettably, I am able to’t provide you with a definitive solution for your difficulty, but when I had to convey, I’d search elsewhere, apart from your TCCM (encoder or transfer scenario)… but nevertheless, I’m not a mechanic both… so I am just guessing!
two) the vacuum switch (Positioned to the firewall — see amongst my posts above for an image) or vacuum diaphram (Found beneath the battery) could possibly be malfunctioning. The job of those elements is to tug over a cable which engages the front, right 4WD hub.
If I place the truck in neutral and press the 4lo it lights up as whether it is Doing the job. Neither one seems to function as I acquired trapped in my driveway. Remember to enable.
Like I explained, I'll endeavor to remember to get some extra photos — with any luck , this will allow you to come across your module however! Regards;
As for The solution towards your problem — sorry, I don’t hold the foggiest as my Blazer doesn’t hold the “Automobile” attribute. Ya gotta possess one of these fancy trucks! You realize what I’d say nevertheless? If it ain’t broke, don’t touch it! Many thanks for the remarks!
If I am not mistaken, you cannot obvious codes you — you must have anyone get it done having a laser wheel alignment near me scanner (ie. SnapOn). I could be Mistaken, but I don’t Consider so — I have a tranny store inside the household which has 1, so I’ve never experienced the necessity to research it any even further.
We now have 4WD. My wife is impressed with me and my hat is off for you sir. You saved us significant time. Will gladly fund your retirement account for what you have got saved us. Let me understand how.
The very first issue you may check you. Grab the schematics from the main write-up and examination pins 26 as a result of 29 for logic electric power (+5VDC), working with pin 16 as your floor. You may additionally wish to get underneath the car or truck and take a look at precisely the same wires for the encoder motor. Exam the bottom wire there as well.
As I have stated many times inside the a few webpages of the put up… every little thing which i know about the Chevy 4WD system continues to be posted in this article. I have no further more facts to supply. I am NOT a mechanic.