Initially, your tranny will not shift into 4Lo at sixty MPH — it is built to shift ONLY once the transmission reaches speeds of 3MPH (5KM/H) or A lot less. The flashing implies which the TCCM is trying to shift from 2/4Hi to 4Lo, nonetheless it can't as a result of speed currently remaining traveled (that's why why it went into 4Lo for your personal wife at the car clean) — it's going to flash for thirty seconds (I feel it’s thirty seconds) after which you can revert again on the manner it had been past in (ie.
so i just put in 7 hours on my again yesterday modifying the transfer case just to learn that it's suppsed to get that way. i am from my thoughts rigth now and that should be one of the worst mechanically involved jobs i have ever been associated with.
I nonetheless don’t have pics yet, I’ve just been active with a bunch of stuff at the moment — but I can go above some points that you should Verify/do.
If I’m not mistaken 1999 and back again, the vacuum change is in addition to the transfer situation. 2000 and up it’s to the firewall. If it’s in addition to the TC, it seems like a nut with three hoses sprouting from it.
The only other issue that I can suggest is actually a “property restore”. Of course, I don't know what style of problem you are obtaining, but Enable’s assume that you have sprint lights and the light DOES Visit the 4×4 higher (or lower) place — at this point, pay attention to see if you listen to a definitive “click on-simply click” coming within the TCCM.
1) Permit’s start off with the simple points — have you checked your fuses? Don’t think that Because the fuses are labeled 4WD that they are the only ones to your 4WD program! Fuse 10 (on my 2003 Blazer) is with the courtesy lights — but guess what? Additionally, it controls the logic aspect of the TCCM (+5VDC). Pin six (thinner orange wire) should produce +5VDC and may be Incredibly hot Continually (meaning you should be capable to read +5VDC on the line anytime, key on or off). The two huge orange wires are your +12VDC strains and therefore are controlled from your 10A fuse located in location #15.
Regrettably, I don’t have any actual expertise With all the services 4WD light. As I mentioned to my visitor down below (just the purchase I answered the posts), it always implies a challenge within the transfer case — problems codes must be set, so you may have to obtain it scanned by your mechanic.
confused claims: January 4, 2009 at 2:52 am I've a 4WD 2000 BLazer that received’t disengage from 4HI. Once i press 2HI I can listen to the TCCM clicking plus the lights flash on 2HI but goes back again into 4HI. I also tried 4LO Which does exactly the same point. Having said that, it does go into Auto 4WD without having challenge. I’ve had the turn on the sprint changed (the letters within the aged just one wouldn’t mild up).
Mounted that and even now no 2hi. Once i try and change from 4hi to 2hi I am able to listen to the encoder motor & vacuum solenoid within the firewall do their occupation and also the Manage module clicking so I presume it’s accomplishing it’s position. I've 2 lights on dash creating get worried, ‘Assistance 4wd’ & ‘ABS’. Would the abs technique fault reduce it from likely into 2hi? I do know your not a mechanic but have you any details for me?
The flashing light suggests the system is attempting to enter that method. If it stops flashing prior to it does, there was a dilemma attending to that method. Sad to say, I’d say halt wheel alignment locations near me driving it and acquire it to a mechanic ASAP, if you cannot further more diagnose the problem.
Greg suggests: December 19, 2007 at one:22 pm Many thanks for the additional pointers. I wound up just getting it in on the store simply because I had been in more than my head when I obtained outside of seeing the shaft turning and the necessity was urgent (truck doesn’t generate well worth a darn in ANY number of snow w/o 4wd).
). Then, I’d perhaps point out the forks/gears/plastic difficulty to the mechanic and he might be able to study it more. Don’t maintain your breath with a recall although — if it’s not a safety challenge, and it lasts a lot more than your warranty interval, it’ll in no way get recalled!
You may additionally wish to possess your battery checked more than. Winnipeg is tough on batteries, little question. My brother, that is a truck driver, had a battery freeze when in Alberta — it had been new instead of lined underneath guarantee. I’m in Ontario and I stood beside a man in Canadian Tire the opposite night time who introduced a battery back they usually informed him the same point — no guarantee, the battery is frozen. When you freeze a battery, you chance cracking the plates — for those who crack the plates, it received’t maintain a cost really worth s**t.
). Following that, you are able to make an effort to shift the TC manually with the “tab” that could now be sticking out in the TC following removing the encoder motor.