That cable is pulled by a pneumatic actuator under the battery tray. On my 1996 Sonoma, whose reservoir was a plastic ball attached to the underside of the hood, a disconnected line is pretty easy to spot. That appears to have been the problem. There is a very good chance that it is in the same location on your … 2000 Blazer. If you aren't getting vacuum, first check your vacuum lines for leaks, then check for vacuum coming from the transfer case when it's in 2wd mode.
Shift forks, or whatever they call this apparatus inside the transfer case, push up against a spring-loaded ball that is part of the transfer case vacuum switch. But to my surprise the actuator that seats under the battery has a vacuum line along with the cable… long story short there is no vacuum line that should be connected to the actuator. I have never been a mechanic. Then check the actuator switch on the front transfer case. This gets the front wheels turning by way of the front drive shaft. The vehicle was not repaired. Follow the rubber vacuum line from the actuator to the transfer case, the transfer case is bolted to the rear of the transmission.
There is a vacuum switch on top of the transfer case that locks vacuum once the encoder motor engages the transfer case to lock the front axle into position, and then releases the vacuum once the encoder switches back into 2wd mode allowing the front axle to decouple. Remove the battery and tray; look for a holeburnt in the vacuum line or actuator module rubber diaphragm. And if so what am I looking for? If you've found this website, you were probably in need of help, or you were really, really bored. Which is under the battery tray. The easiest way to reach it is going up next to the front drive shaft. A new switch was installed and temporarily corrected the failure before it recurred.
Also, attached to the dipstick tube you'll see a vacuum line with a cap-like fitting on the end. May 07, 2014 1999 Blazer. If your truck doesn't have those buttons, you've got a lever on the floor. The failure mileage was 80,000. The easiest way to change the filter is to remove the air filter box.
Can anybody verify this article. It connects to the black connection on the 3 way. Why would it be full of transfer case fluid? If the dash light flashes andyou hear a clicking sound that means you have power to the relay. That's not really good for the front end and can eventually result in a grinding noise. Its not like the good old days.
Put it all back to together and tested 4wd great Drove it to about 35 miles around the city and highways at multiple speeds, Never had a problem. There is a component that I am not familiar with Amateur Mechanic that sits between the fuse box under the hood and the firewall. Awesome videos and great detailed explainations! On my 2004 Blazer, the reservoir is tucked inside the driver's side fender. The vehicle was taken to a dealer. If the battery has ever leaked the acid runsdown onto the actuator causing the problem.
I also end up finding and repairing a vacuum leak which ended up being the problem. From the thousand pictures online about 2000 chevy blazer vacuum diagram, we selects the very best choices with best image resolution exclusively for you, and this photographs is usually one of images selections in our finest images gallery about 2000 Chevy Blazer Vacuum Diagram. Start from the beginning to the end. When the collar slides and the axles are joined, the front drive shaft will power the front wheels a very lay person's explanation. If I may I am constantly seeing questions asked about mechanical problems and if anyone has a problem 90% of the time or more a person can go to an auto parts store and purchase or at some parts stores they have work manuals that will tell you in lames terms just how to fix the problem. And speaking of actuators, there are several inside the dash, each controlling a door or flap that directs air to the proper vents.
Long-term, here's what can happen:. Upon inspection it was determined that the actuator had corroded to the point that it need to be replaced. It is a black box that has 2 electrical connections going into it. Hello, I just recently bought my blazer and the 4x4 does not work. The other goes to engine vacuum. If there is vacuum then problem in actuatoror cable linkage. In my 2000 blazer I have to shut the motor off turn the key forward until the dash lights turn on to get it out of 4wd.
These are a remote location… i have a 93 s10 blazer and had to replace the heater core recently, it is a pain, and it helps to have another person there to give you a hand, you have to take the entire dash out, remove the heater core cover, undo the brackets and undo the hoses from the heater core, the worst part is removing the dash and remembering where all the wires go if you do this job yourself… Finding the camshaft sensor is the trick replacing it is a snap. Not sure what the problem is now any input would be awesome, I understand if your busy though. The other thing to check is the vacuum hoses between the source on the back of the motor, the hose from the switch to the actuator and the vent attached to the trans dipstick. I just bought a 2003 Chevy Blazer and was sad to find out when I got it home that the 4×4 did not work. That is the actuatoir cable that locks the right front axle to the front differential.
It communicates the faults by making the dash buttons blink on and off. This is some what a common…. There are 3 tubes sticking out the top, each connected to a vacuum line. Published by simply MotorPosts Team with January, 6 2017. It the vacuum switch is stuck open, the actuator will continuously pull on the hub-lock cable.