Ryan says: April two, 2008 at 9:24 pm Many thanks for your reaction to my submit before, and i experienced pep boys do a vacuum check within the system and so they explained each detail was gave the impression to be Okay, so i bought that 4 wheel travel swith from napa and installed it,(it went into the entrance axle ideal in which the cable within the actuator attaches), nevertheless no luck. so i could see some type of sensor along with the transfer situation with 3 vacuum lines attached to it, so i replaced i, and once again still nothing, so i have a couple a lot more issues…their is yet another sensor around the tail pice with the transfer scenario, i was advised it is the velocity Regulate sensor, could that be the situation?
sure more than enough the vacume line was terrible by the valve include. I very first improved the vacume switch on the transfer situation but it had been only $16 and I hardly ever have to bother with it once again. So for $26, as well as huge information on this weblog, I used about two hrs to obtain it Doing the job. Can’t thanks plenty of.
I'm significantly indebted to you personally. My new spouse’s 2000 Blazer misplaced her 4wd a 12 months back. SHe observed your web site with regards to the TCCM module corrosion, printed off the data and her mechanic fixed it. He was also amazed.
Frequently, that's telling you that there is a trouble during the transfer scenario — issues codes must be established, so have your car or truck scanned by your mechanic. I haven't any working experience Together with the 4WD provider light-weight, so other than that, I don't have any further more information.
Check out the schematic “entrance axel swap & pcm.jpg” — and after that have One more consider the wires on the TCCM (Transfer Circumstance Manage Module), Found beneath the passengers kick panel.
My to start with issue will be, Exactly what are the lights to the sprint carrying out (the 4wd pushbuttons)? And second, what 12 months of automobile are we conversing? (I’m also assuming we’re continue to speaking about a Chevy Blazer.)
I pulled above and checked the fuse — every thing was very good there, but I decided to improve it just in the event. Even now nothing at all. Just after striving every thing I could think of, I just had to handle it and continue on on in 2 wheel drive.
Sign I get would be that the data files are no more offered.They may are actually deleted from the uploader, or expired.
The main problem you may test oneself. Seize the schematics from the 1st submit and take a look at pins 26 via 29 for logic electric power (+5VDC), working with pin sixteen as your floor. You might also would like to get under the automobile and take a look at the same wires with the encoder motor. Examination the ground wire there as well.
Make your adjustments. Dependant upon the variety of steering you've, There are 2 different ways you'll be able to modify your toe. If you have rack and pinion steering, you ought to convert the inner tie rod itself. Spinning the rod will regulate the toe in or out. In case you have a parallelogram linkage procedure, there'll be adjusting sleeves you can switch to adjust your toe.
Now, there is a sensor around the front, right hub to detect when it really is engaged — I haven't attempted this, so I don’t know 100% of course, but Should the front, right hub is not participating, the procedure should really detect this rather than enter 4WD.
If by unplugging the TCCM you hope to the vehicle will default to 2WD — it received’t. Assuming that it’s really working and driving your axle(s), go away it's and acquire it to some mechanic ASAP.
two) the vacuum swap also communicates with the TCCM — no vacuum along with your lights will probably flash frequently when hoping to interact 4wd, but gained’t engage right until all 4wd components, Yet again, talk to one another.
I cleaned the TCCM contacts, then was ready to listen to it click on, but alas, the four Hello and four LO lights flashed Once i attempted to have interaction them. Rats! Step 2, checked every one of the fuses.. All OK, then found a wheel alignment near me broken actuator vacume tube damaged near the actator itself.