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Old 08-06-2019, 10:47 AM
pahaf91 pahaf91 is offline
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Location: Sacramento
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pahaf91 pahaf91 is offline
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Join Date: Apr 2019
Location: Sacramento
Posts: 60
pahaf91 is on a distinguished road
2006 4Runner V6 4x4 stuck in 4hi. But saying 4lo. P2772

Hey guys. I have been messing with my 4runner for a while now and I can figure anything out. Maybe someone can help me out.

2006 4Runner V6 4x4 sport.
3" space lift.

I been driving it for about 7k miles with no issues. Do quiet a lot of off roading so I have switched back and forth between 2HI-4HI-4LO. I use them all.

About a month ago I went thru a water crossing that was about 14" tall. No issues

2 weeks later I went from a 265 70 17. To a 285 70 17 tire. Right when I did that, about 3 Miles after the new tires I went off roading on some local trails and engaged 4wd. Played around for a little, but when it came time to go home, I tried to put the car back into 2hi but all the lights started flashing on the dash. The 4x4 light. 4lo light. Diff lock light. So I restarted the car 2x and it went back into 2hi.

About 3 days later while driving on sand in 4x4, they lights all came on again and this time they wouldn't to away. And they weren't flashing but the 4x4 light and 4lo stayed on. Keep in mind I was driving in the sand with 4hi.....not 4lo.

Anyways now it's been about a week and the truck is stuck in 4hi. I drive it to work doing 70mph so I know indeed that its 4hi. Not 4lo. But the dash lights show that it's in 4lo and I don't have my 5th gear anymore.

I read about the actuator in the center diff going bad.....I opened it up because I thought water got in.. nope. Clean. And I read about the motor being stuck or frozen. Its not. I will disconnect my wiring plug for the front diff actuator and I can hear the center actuator moving around inside. It moves the gears around.

Oh and the truck is showing P2772 code Four Wheel Drive Low Switch Circuit Range/Performance
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