Ryan claims: April two, 2008 at 9:24 pm Thanks for the reaction to my post previously, and i experienced pep boys do a vacuum test on the process plus they stated each matter was appeared to be Alright, so I purchased that 4 wheel travel swith from napa and mounted it,(it went in to the entrance axle correct where by the cable from the actuator attaches), however no luck. so i could see some sort of sensor along with the transfer circumstance with 3 vacuum traces attached to it, so i replaced i, and Once more continue to nothing, so i have a couple far more concerns…their is yet another sensor around the tail pice of your transfer case, I used to be advised it is the velocity Manage sensor, could that be the trouble?
It’s actually challenging to inform without having being able to place my arms on it. On the other hand, You may additionally want to check the encoder motor signal strains (C26 via C28 on the pinout from the primary article) — they ought to be superior (+5VDC) when the aren't in use (resistors pull the strains large), and minimal when they're Energetic (named “Lively minimal”). All schematics are posted in the 1st submit of the thread.
As I've stated often times within the 3 webpages of the write-up… every little thing that I learn about the Chevy 4WD procedure continues to be posted right here. I have no further more information and facts to supply. I am NOT a mechanic.
The first thing I'd Test would be the 4Hi light — (preserve it uncomplicated) — does the 4Hi light-weight at any time arrive on?
My four lo will work. And that i hear the module click when it moves into 4lo. but Once i attempt to move into four hi the lights flash after which goes directly to 2hi. i was wanting to know if you can plaese enable?
I might be wrong with this, but essential logics (and also the schematics) tells me to get started on looking at the wire that forestalls the TC from shifting If your A/T is in gear.
Drive the car on to a flat area, jack up the entrance conclude, and location the car on jack stands. Make sure the steering wheel is unlocked.
John Boy states: December four, 2008 at 7:19 pm You're a hero to many people! Thinking about your blog it seems you might have saved persons hundreds Otherwise 1000s of bucks by supporting men and women fix their 4WD troubles by themselves. I solved my difficulty just after looking through about vacuum leaks. Positive plenty of the vacuum hose experienced damaged from the activate firewall. It appears the hose was way too shorter to begin with and was kinked leading to it to fail prematurely.
Repeat at the method in the back of each tire. Provided that you use string or wire that doesn't extend, you may get a really correct measurement this way.[six]
Minimize a measuring triangle. Obtain a piece of rigid cardboard or Wooden and Slash it into a perfect correct triangle (one with a ninety diploma angle) that's the very same height as your wheels.
My mechanic is struggling to align my entrance because he would not know how adjust aftermarket unibal A Arms. Should I go to a shop that has a Laptop or computer to point out how to proceed?
Reduce the vehicle. After you reduced the car to the bottom, push down on the car above Just about every wheel a handful of moments to enable the vehicle to settle.
I'm able to’t thanks ample for this blog site. I acquired a 95 Jimmy on an impound auction for $320. I obtained it begun, and sure plenty of no four wheel push. I seen the sprint buttons appeared like they didn’t click, they lit up when ingnition was turned on, then two hi stayed lit, thats all I could get them to do. So I grabed onto the two wheel button and gave somewhat tug and it poped suitable out on the dash.
Jodie Perry claims: November thirty, 2014 at 9:21 pm Engaged Try THIS Site on a 2000 Blazer and possessing a similar trouble as Most are Together with the four wheel travel not engaging. I seemed online and found out that the most typical issue would be the transfer circumstance vacuum change. Right after many hrs crawling underneath the Blazer and observing quite a few video clips on the location, I gave up and jumped back again on line to check out what I'd skipped. Evidently, I found out, that if you have the four button four wheel travel selector, you don’t have a vacuum turn on the transfer scenario…..you've got the TCCM, an actuator plus a vacuum actuator swap. I checked out the actuator to start with of the method and the cable was free of charge and very clear. Went ahead and lubed it up for good evaluate too.