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Depending on the vehicle, one should go to the engine, one to a vent, and two to the front axle shifter.
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Your Lincoln Navigator will no go into awd or 4wd hi or low?
i have had the same problem with me gmc sonoma, If you can here the transfer case click when you put it in 4x4 it is more than likely a vacuum line or the actuator. in my case all the vacuum line were dry rotted after replacing them my 4x4 works fine. if you cant hear the transfer case kicking in it is electrical in which case you should take to a shop unless you are an electrical engineer. good luck with this.
What is wrong 1999 GMC Jimmy the service 4x4 light is on and wont go out of 4x4something is telling it to stay in the transfer case stays engaged you can go under the battery tray and disengage the fr?
This is a stupid system, but heres how it works. Electronic control on dash engages motor in transfer case to engage vacuum sensor on the transfer case, completes vacuum circuit from engine to vacuum operated shift cable under battery tray, cable pulls shift fork inside front diff half shaft, which engages passenger front axle. Very common problem with these is that the vacuum actuator on the transfer case gets stuck, so vacuum is constantly applied to the shift cable actuator, causing it to be in 4x4 all the time. Under the battery tray is the vacuum actuator for the cable, see if it has vacuum when 4x4 is supposed to be off, if so you will have to replace the sensor on the transfer case (not an easy task), or disconnect the vacuum line to the cable actuator to release the shift fork and prevent further damage. Hope this helps, Justin
Where do the 3 vacuum hoses go off the transfer case on a 1991 Chevy blazer?
I just put a new transmission and have 3 hoses coming off the transfer case and need to know where to hook them to.
Connecting the vacuum line to allow the four wheel drive to kick in on a 1988 S15?
At one point while offroad I had the vaccuum lines for the four wheel drive fail. If you go to the intake manifold, there should be a few ports that are blocked off. With the vehicle running unblock and check for vacuum. If you have vacuum, you can connect an extra bit of vacuum line directly from the port to the actuator that engages the front right axle shaft. This effectively bypasses the vacuum switch on the transfer case.
What needs to get fixed if your '97 Chevy S10 will go into 4x4 low but not 4x4 high?
Answerfirst check the ground wire on top of the transfer caseThis depends weather your transfer case changes by electric motor or vacuum if it's vacuum most likely it's your check valve located on top of transfer case or if electric refer to first answer
Do you have a diagram of vacuum hoses on a 1991 Chevy blazer?
I need a diagram for the 1991 Chevy blazer to see where the 3 hoses go to coming off the transfer case.
How fast can the speed of light go?
Light is fastest in a vacuum; in this case, its speed is about 300,000,000 meters/second.Light is fastest in a vacuum; in this case, its speed is about 300,000,000 meters/second.Light is fastest in a vacuum; in this case, its speed is about 300,000,000 meters/second.Light is fastest in a vacuum; in this case, its speed is about 300,000,000 meters/second.
Where does the vacuum line go from the fuel pressure regulator on a 2000 Chevy 4.3 vortex?
It doesn't have a vacuum line attached to the fuel pressure regulator.
Where does vacuum hose on top of transmission go to on 1998 Chevy C1500?
Is it a 4-wheel drive ? If it is then that so called vacuum hose hooks to the VENT TUBE on the transfer case and will be clamped to a small bracket that should be bolted to 1 of the top transmission bell housing bolts. The transmission does not have any vacuum hose's on it.
I have a 98 Chevy Blazer. It wont shift into 4WD. You can hear it click but won't engage. Also goes into Low range but remains in 2WD?
to me it and i just went through this its most likely a problem with the front wheels actuator either its faulty or one of the vacuum lines has a break in it. Vacuum pulls the front end into gear and and if its not getting enough vacuum it will not do it. also if there is transmission fluid in the actuator or vacuum lines you may have a problem with the transfer case switch where the vacuum lines come out of the transfer case sometimes the seal goes and will put trans fluid in the lines. replace the actuator blow out the vacuum lines if trans fluid is visible in the actuator and all should be good. but if there is trans fluid in the actuator and lines also check the level of fluid in the transfer case if you take out the top bung on the transfer case and oil runs out of it and i mean more than an ounce or two if its like a litre or more then you have a seal gone between the transfer case and the transmission which will pump your transfer case full of trans oil that also needs to be replaced. if so whoever is doing it for you tell them that there is room enough for 2 seals to be put in and the seals will never give you another problem. go through these steps and all should be fine. hope this helps if this works and it should please recommend me in this forum. thanks.
Need a front driveshaft 1994 Grand Cherokee V8 5.2L Lost mine How do you find which size you need?
go to the wrecking yard and look for a 93-96 With the same engine and transfer case. You will find the transfer case model on a tag that is on the drivers side of the transfer case facing the rear near the rear drive line. more than likely it is a 249.
Where can you get a vacuum line diagram for a 1989 Isuzu Pickup?
Go to http://ww.mitchellrepair.com
