Issue with 4lo, 4hi, and 2 hi.

[Crayola_Yee_Yota]

Hello fellow overlanders, I’ve got a gen4 2004 4Runner sport edition. My center diff lock works fine, however I have a green light with all 4 wheels constantly lighten up, and the 4lo light is flashing and beeping while in gear. I don’t hear the actuator trying to engage or disengage. It feels like it is in 2hi though. Anyone have any ideas? Thanks in advance.

 

[Mike G]

Did you engage 4lo in neutral? If you did, then your actuator is frozen.

 

[Smileyshaun]

has to be in neutral or the computer will go crazy , if it still won't switch change the t case fluid and give the actuator a couple wacks with a chunk of wood and then try again. had the same issue on my sequoia because I'm fairly certain 4 low was probably never used b4 I had it. Took 3 times of giving it a couple wacks , trying to switch to 4 low , drove it around , gave it a few more wacks . once it finally engaged I never had a problem again . just make sure to cycle through the 2wd,4hi,4low once a month to make sure everything stays lubed up and operating properly .

 

[Rexplorer]

Must be a dial 4wd selector? Toyota shoulda kept the 2nd stick selector.

 

[madcratebuilder]

has to be in neutral or the computer will go crazy , if it still won't switch change the t case fluid and give the actuator a couple wacks with a chunk of wood and then try again. had the same issue on my sequoia because I'm fairly certain 4 low was probably never used b4 I had it. Took 3 times of giving it a couple wacks , trying to switch to 4 low , drove it around , gave it a few more wacks . once it finally engaged I never had a problem again . just make sure to cycle through the 2wd,4hi,4low once a month to make sure everything stays lubed up and operating properly .

This! No matter the manufacture you need to exercise the different gear sets once a month or so.