Problem getting into 4Hi or 4LO - TundraTalk.net

SpaceDog · 05-09-2008, 11:21 AM

I recently purchased a 2001 Tundra TRD 4x4 Limited with automatic tranny.

I can't get the trans into 4HI or 4LO for the life of me. I've read the manual 5 times and I still can't get it.

Any ideas? Maybe I need to take it to the dealer or are there steps I should follow first to make sure I’m doing it correctly.

I’ve done the following for trying to get into 4HI: Move forward at some speed and press the 4HI button; it blinks and only blinks; I press the button again (out position/disengaged) and press it again; I get nothing but blinks. I stop the vehicle, disengage and re-engage; still nothing but blinks.

I’ll spare you the dribble on 4LO. Basically, when in neutral and pushing buttons I can’t even get it to blink as 4LO.

Any ideas? Thanks!!

jpnca · 05-09-2008, 05:36 PM

Take it to a shop may not be engaging in the T case or the front axle. I hate not having a manual shifter

SpaceDog · 05-11-2008, 12:50 AM

Interesting.

This evening I did a quick run with the truck and I was able to get it into 4HI. I suspect the cool temps somehow affect the sensors/switches. But once the truck warmed up I couldn't get it out of 4HI. Go figure. I hope I can tomorrow morning.

I found a thread on the Yotatech site that describes a very like situation but for a '99 4Runner.

I think the sensors/switches are close to shot (or at least don't work correctly when warmed up).

ramoine · 05-11-2008, 09:12 AM

Thanks for the update !

05-09-2008, 11:21 AM	#1 (permalink)
SpaceDog Junior Member Join Date: Apr 2008 Posts: 3	Problem getting into 4Hi or 4LO I recently purchased a 2001 Tundra TRD 4x4 Limited with automatic tranny. I can't get the trans into 4HI or 4LO for the life of me. I've read the manual 5 times and I still can't get it. Any ideas? Maybe I need to take it to the dealer or are there steps I should follow first to make sure I’m doing it correctly. I’ve done the following for trying to get into 4HI: Move forward at some speed and press the 4HI button; it blinks and only blinks; I press the button again (out position/disengaged) and press it again; I get nothing but blinks. I stop the vehicle, disengage and re-engage; still nothing but blinks. I’ll spare you the dribble on 4LO. Basically, when in neutral and pushing buttons I can’t even get it to blink as 4LO. Any ideas? Thanks!!

05-09-2008, 05:36 PM	#2 (permalink)
jpnca Super Moderator Join Date: Apr 2007 Location: San Gabriel Valley Posts: 1,878	Take it to a shop may not be engaging in the T case or the front axle. I hate not having a manual shifter __________________

05-11-2008, 09:12 AM	#4 (permalink)
ramoine Senior Member Join Date: Jan 2008 Location: Huntington,Indiana Posts: 4,015	Thanks for the update ! __________________ 2008 Crewmax X-SP carbon Fiber Dash kit 20" JTI Rims BFG AT KO 285/55/20 AFE C.A.I w/ Dry Pro filter and the AFE Mod Blacked out Headlight Mod. Flo~Pro muffler #744 Toytec 3" front , 1" rear blocks and Diff. lowering kit

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05-11-2008, 12:50 AM	#3 (permalink)
SpaceDog Junior Member Join Date: Apr 2008 Posts: 3	Interesting. This evening I did a quick run with the truck and I was able to get it into 4HI. I suspect the cool temps somehow affect the sensors/switches. But once the truck warmed up I couldn't get it out of 4HI. Go figure. I hope I can tomorrow morning. I found a thread on the Yotatech site that describes a very like situation but for a '99 4Runner. I think the sensors/switches are close to shot (or at least don't work correctly when warmed up).

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