The problem is caused by the transfer case's encoder motor contacts which becomes corroded internally. If cycling back and forth through all the four-wheel drive modes while in neutral and stationary does not work after multiple times then your encoder motor should be replaced which is attached to your transfer case. The encoder motor costs up to approximately $150. It is not extremely difficult to replace yourself if you are mechanically inclined.
@@n3d.studio Did you try cleaning the electrical connector with quick drying electrical connector cleaner and dielectric grease? Also did you use an OBD2 scan tool to clear the computer? You can try disconnecting both battery cables then holding them together for 1 minute to drain the capacitors in the modules to reset them. Maybe changing the transfer case fluid MIGHT help.
@@MisterJ.J. no I found it's abs problem. Probably wheel speed sensors. I have the front ones need to install. So I tested on another h2 of mine. Every so often the abs and tc light will come on on that one. When that happens it does the same thing and will not go into 4wd. When it clears the 4wd engages fine. I just hope it isn't the rear speed sensors because they cost alot.
Hello Mr. J.J. I'm hoping you can help me. Recently I bought a 2003 H2 and the rear diff lock button has begun flashing and dash says service 4wd, any ideas what's causing this? Thank you
Nothing worked but 4high. Replaced the transfer case motor. pretty easy. Just have to trust your ramps and jack stands if its not already high enough lol. Anyway now 4 high locked works which did not before but 4lowlocked still doesnt work or light up and rear locker still doesnt work and just flashes till it doesnt. I know nothing about a 4x4s mechanics so got to learn some more...
Update. Got the new dash switches to try since it's cheap. The entire low and lock system works now. Yeah! I didn't even have to take the entire dash off. Just removed the 2 main hex screws and tilted it back. Used some panel prying tools to release the switches from the dash.
My H2 Hummer never Stars I changed the crankshaft still not start could you tell me what's the problem and how you started the hammer through the fuses
May you can help me on a similar issue that I'm having on my Hummer H2 2004 is that none of my lights stay on they just flash but they never switch over or get a solid light, thank you in advance.
well I tried replacing the actuator, now it says service 4wd, it didn't before but I just bought this H2 so I don't know the history on it. I suspect it must be the transfer case then.
a little more checking, so I have abs light on, from what I found in another video it could be a bad speed sensor at the front and that will prevent any of the 4wd from working for safety. So all of them just flash yellow and then go off even 4 high open. should stay on. traction control button doesn't do anything either. only thing that works is tow/haul. so I think I'll check those sensors first before I look into getting transfer case replaced. I tried my code reader but it didn't pull up anything for speed sensors but maybe it doesn't read abs. the abs light is on. One other thing it could be is the transfer case control module (tccm) up under steering wheel. Really hard diagnosing source of problem. So many things it could be. I think I may replace the module next. Supposed to have it programed too.
Sir my issue of my h2 is that the 4 high button is not on and the message is on they said it was the transfer case? what is your recommendation for that?
hola hermano tengo un h2, 2009 tiene menos de 30 mil millas, el carro anda perfecto, el problema que tengo es que las puertas se mueven mucho cuando esta andando, da la impresión de que esta flojas, te pasa lo mismo con la tuya?
En Los años 2008 y 2009 se cambiaron muchas partes que no eran iguales en años anteriores (2003 a 2007) el mio es del 2004 . Si Lo que escuchas son las puertas vete a alguien que trate de ajustarlas una a la vez y eso debe de ayudarte .
@@dailydrivenH2 gracias por responder, tengo otra duda, tienes istalado en la tuya algun cooler de transmision? he escuchado que sulen fallar en la transmisión por altas temperaturas.. es cierto?
Yo no tengo uno . Uno de los problemas que suelen pasar es que el rayador liga el liquido de transmission con el coolant y trae problemas por eso si puedes ponle uni que no sea el que trae de fabrica .
@@dailydrivenH2 something in the front left i think broke because the hummer jumped to the left coming out of 4 hi lock, was like 2 inches of snow on ground up 11% grade
No entendi nada hermano, tengo un hummer 2008 y al girar la perilla de traccion, paso de 4h a 4l, se qeuda parpadeando por unos segundos y se apaga, acto seguido sale el mensaje de "service 4wd".. que hago? tiene 40 mil millas mi h2
thanks for the support . If you enjoyed the video buy me a coffee @ >>>>> www.buymeacoffee.com/dailydrivenh2
The problem is caused by the transfer case's encoder motor contacts which becomes corroded internally. If cycling back and forth through all the four-wheel drive modes while in neutral and stationary does not work after multiple times then your encoder motor should be replaced which is attached to your transfer case. The encoder motor costs up to approximately $150. It is not extremely difficult to replace yourself if you are mechanically inclined.
well I tried that but still nothing, I guess it's transfer case then? Just blinks for awhile then goes out same as before but now it says service 4wd.
@@n3d.studio Did you try cleaning the electrical connector with quick drying electrical connector cleaner and dielectric grease? Also did you use an OBD2 scan tool to clear the computer? You can try disconnecting both battery cables then holding them together for 1 minute to drain the capacitors in the modules to reset them. Maybe changing the transfer case fluid MIGHT help.
@@MisterJ.J. no I found it's abs problem. Probably wheel speed sensors. I have the front ones need to install. So I tested on another h2 of mine. Every so often the abs and tc light will come on on that one. When that happens it does the same thing and will not go into 4wd. When it clears the 4wd engages fine. I just hope it isn't the rear speed sensors because they cost alot.
Hello Mr. J.J. I'm hoping you can help me. Recently I bought a 2003 H2 and the rear diff lock button has begun flashing and dash says service 4wd, any ideas what's causing this? Thank you
Is this motor servicable,even though the cover says non servicable??
Thank you…just did it and it works…
Great videos, thanks is a bunch. Didn’t know it needed to be in neutral to shift to hi.
Nothing worked but 4high. Replaced the transfer case motor. pretty easy. Just have to trust your ramps and jack stands if its not already high enough lol. Anyway now 4 high locked works which did not before but 4lowlocked still doesnt work or light up and rear locker still doesnt work and just flashes till it doesnt. I know nothing about a 4x4s mechanics so got to learn some more...
Update. Got the new dash switches to try since it's cheap. The entire low and lock system works now. Yeah! I didn't even have to take the entire dash off. Just removed the 2 main hex screws and tilted it back. Used some panel prying tools to release the switches from the dash.
Great video and contribution 👍
Thanks for watching
Thanks for the tip!!!
Worked like a charm.
Glad it worked out for you 👌
You need to be in 4L lock to lock your rear dif.
Thanks for clarifying this i was under the impression you could just lock the rear diff without being in 4L or H …
great content, did you get to do a video on how to fix the service airbag on the hummer, I've just got that message
My H2 Hummer never Stars I changed the crankshaft still not start could you tell me what's the problem and how you started the hammer through the fuses
How to put NEUTRAL (without any traction) with buttons? We have to press two together but I didn't understand the procedure. Thanks
May you can help me on a similar issue that I'm having on my Hummer H2 2004 is that none of my lights stay on they just flash but they never switch over or get a solid light, thank you in advance.
I GOT THE SAME PROBLEM THE LIGHT KEEP BLINKING BUT NEVER CHANGES TO GREEN
just picked up another H2, I don't have a message but when pressing 4h or 4l it just blinks for awhile and then stops, but never engages.
Sometimes that happens to me too
@@dailydrivenH2 I think the 4wd actuator is out. I'll replace it when I work on the suspension.
well I tried replacing the actuator, now it says service 4wd, it didn't before but I just bought this H2 so I don't know the history on it. I suspect it must be the transfer case then.
a little more checking, so I have abs light on, from what I found in another video it could be a bad speed sensor at the front and that will prevent any of the 4wd from working for safety. So all of them just flash yellow and then go off even 4 high open. should stay on. traction control button doesn't do anything either. only thing that works is tow/haul. so I think I'll check those sensors first before I look into getting transfer case replaced. I tried my code reader but it didn't pull up anything for speed sensors but maybe it doesn't read abs. the abs light is on. One other thing it could be is the transfer case control module (tccm) up under steering wheel. Really hard diagnosing source of problem. So many things it could be. I think I may replace the module next. Supposed to have it programed too.
My h2 was showing natural, I cycled to 4wd, and the service 4wd came on
Sir my issue of my h2 is that the 4 high button is not on and the message is on they said it was the transfer case? what is your recommendation for that?
If thats the case have a shop check your tranfer case .
What will be the course of my h2 not moving if is on drive but if is on reverse it will move?
Shifter cable
hola hermano tengo un h2, 2009 tiene menos de 30 mil millas, el carro anda perfecto, el problema que tengo es que las puertas se mueven mucho cuando esta andando, da la impresión de que esta flojas, te pasa lo mismo con la tuya?
En Los años 2008 y 2009 se cambiaron muchas partes que no eran iguales en años anteriores (2003 a 2007) el mio es del 2004 . Si Lo que escuchas son las puertas vete a alguien que trate de ajustarlas una a la vez y eso debe de ayudarte .
@@dailydrivenH2 gracias por responder, tengo otra duda, tienes istalado en la tuya algun cooler de transmision? he escuchado que sulen fallar en la transmisión por altas temperaturas.. es cierto?
Yo no tengo uno . Uno de los problemas que suelen pasar es que el rayador liga el liquido de transmission con el coolant y trae problemas por eso si puedes ponle uni que no sea el que trae de fabrica .
Do you have your own shop? If so, where are you located?
Socal but no I dont have my own shop . Why whats up having any issues with your H2 ???
When doing that is your truck on
Yes
My H2 has a sticky wheel after coming out of 4 wheel Hi lock, any thoughts? Thx mate
No idea what it could be.
@@dailydrivenH2 think it could be broken tie rod. You get the Ev yet?
No not yet still waiting. Jack up the H2 and take a look at it if you think its the t rod
@@dailydrivenH2 something in the front left i think broke because the hummer jumped to the left coming out of 4 hi lock, was like 2 inches of snow on ground up 11% grade
Which one is the normal
If by normal you mean the one you drive on daily is the first square button on top under the round one . 4⬆️
No entendi nada hermano, tengo un hummer 2008 y al girar la perilla de traccion, paso de 4h a 4l, se qeuda parpadeando por unos segundos y se apaga, acto seguido sale el mensaje de "service 4wd".. que hago? tiene 40 mil millas mi h2
As ido a ver algún mecánico??? Normalmente deberia de cambiar de uno al otro sin decir service 4wd
Tu usas Instagram????
You do not need to be in neutral, it’s shift on the fly (with caveats)
The music is annoying
Man you need to talk less and go straight to the point. 🤦🏽♂️