Vacuum system
#1
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Hi its me agian. Have been abke to sol e my my issues by watching youtube. However my 4x4 not work. Ive checked all the vacuum lines and replaced the ones needing changing. The vacuum acuator isnt getting any air pull to it. Took it apart and was able to manually put it into 4wheel drive. Any suggestions. Thanks in advance.
#7
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Don't give up yet , you say the solenoid under the hood works correctly. So you have a 4 button system if you have the solenoid on the firewall, do you have vacuum to the solenoid ?....if not is the line connected at the canister inside the drivers fender ?
#9
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U removed the vacuum switch on the tranny and made sure it wasn't seized... when I took mine out the ball worked sometimes but when I kept pressing on it it would seize and after purchasing a new one (they are cheap) I noticed that the ball valve moved with ease compared to my old one ... u made sure that the lines are connected in the right place on the vacuum switch.....did u replace the line from the vacuum switch to the actuator....if not disconnect the line at switch and install a small piece of new line and see if u get suction
#10
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If you have vacuum going to the solenoid on the firewall and no vacuum going to the actuator ....then it sounds like the firewall solenoid is not working or the lines on the solenoid may be reversed.....you can temporarily bypass the solenoid by hooking the lines up together and see if the actuator then gets vacuum.