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You’ll determine soon ample from a mechanic. During the meantime, there’s two webpages of Q&A above which you could study.
Essentially, this could emulate the button remaining pressed and should set off the TCCM to interact 4Hi. If it does not, the situation is in the TCCM, most-likely. All over again, Verify pin five in the TCCM. You may additionally would like to check out making use of ability to pin 5 specifically within the TCCM and see if it engages 4Hi.
Hey Doug — many thanks for the knowledge! That makes many feeling — now, if we can only find the change! If you think about it, the change you take a look at could just be the basis of the problem to get a several people who’s 4WD won’t interact.
2) the vacuum swap (located around the firewall — see considered one of my posts previously mentioned for a picture) or vacuum diaphram (Situated beneath the battery) may be malfunctioning. The work of these parts is to drag with a cable which engages the front, suitable 4WD hub.
Nicely, at least the Sunshine is shinning this morning — what an attractive site Along with the fresh new fallen snow!
Sorry with the extended write-up, I just don’t know where to start. Like I stated I believe my four×four is effective it just won’t “hold†it in 2HI? Thanks for any support.
Once again several thanks for your personal data. My 4wd is Operating now because of you.$sixty for components and just one hour to reinstall. Ron bobbitt in West Virginia
If I needed to guess — both your encoder motor is shot, or bad wires about the TCCM. In case you’re definitely into it, I’ll publish the schematics to the wiring of your technique — this will let you trace and examination points alongside the technique to pinpoint the challenge. (I have to scan them, so it might not be today!)
). Indeed, each of the higher than “tests†from the TCCM might not be possible in your case. I comprehend it’s a dilemma which i wouldn't want to deal with as I don't hyperlink have obtain to another TCCM, so it would make like tough. Considered one of my hobbies is electronics structure and programming — so, if it ended up me, I'd personally take the schematics (all schematics are in the very first post of the thread) and start “probing†the TCCM to check out what is performing what. I might file that facts, after which you can do the very same procedure the subsequent time I'd the situation to discover what has altered. It may not support you actually deal with the challenge, however it will let you locate it — after it’s located it could be mounted.
Kyle, you can submit as you prefer.To add details, my supplier was discussing replacing the 2 computer modules linked to the 4wd, They stated similar as after they changed them in ’05 that the two must be replaced at $1060 as well as tax and which was a mininum.
com as well as acdelco.com . Nobody is listing a module relating to four wheel travel or transfer circumstance. If any one can assist with a provider of the component, make sure you email me at [email protected] . Thankyou, Dale
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PS – I really hope I’m not way off foundation listed here and sending you with a wild Goose chase, however it’s difficult whenever you can’t begin to see the vehicle.