Blinking 4 wheel drive light

haulincats · 08-29-2009, 09:11 PM

I have a 96 GMC 1500 Sierra 4x 4. It has the push button
4 wheel drive buttons on the dash. Today I put it
4 wheel drive (high or low) and the light in the switch
just blinks. Where do I start looking??
Thanks,
Vance

mudseeker · 08-29-2009, 09:21 PM

it's blinking because you hit 4low while in gear. put in nuetral if you want it in 4low, otherwise push the 2hi button and be on your worry free way.

hotrodpc · 08-29-2009, 10:31 PM

Yep, Its waiting for you to stop the vehicle, go into Neutral then once its engaged, it will stop blinking, stay solid lit, to tell you its engaged and you can now go into gear and move. IF you are doing all that right and it continues to blink, then you likely have a defective engagement solenoid and it is not going to engage.

haulincats · 08-30-2009, 04:15 PM

Quote:

Originally Posted by hotrodpc

Yep, Its waiting for you to stop the vehicle, go into Neutral then once its engaged, it will stop blinking, stay solid lit, to tell you its engaged and you can now go into gear and move. IF you are doing all that right and it continues to blink, then you likely have a defective engagement solenoid and it is not going to engage.

There is definately something wrong, it blinks when I try and
shift from 2 high to 4 high. (4 high blinks)
I have no idea where to start checking?
Thanks,
Vance

hotrodpc · 08-30-2009, 08:19 PM

That is normal for it to blink, then should go solid after a few seconds telling you that 4high has engaged. IF its not doing that, then I would first suspect the solenoid on the transfer case.

08-29-2009, 09:11 PM	#1
haulincats Junior Member Join Date: Aug 2009 Posts: 2	Blinking 4 wheel drive light I have a 96 GMC 1500 Sierra 4x 4. It has the push button 4 wheel drive buttons on the dash. Today I put it 4 wheel drive (high or low) and the light in the switch just blinks. Where do I start looking?? Thanks, Vance

08-29-2009, 09:21 PM	#2
mudseeker Senior Moderator Join Date: Feb 2006 Location: michigan Posts: 6,374	it's blinking because you hit 4low while in gear. put in nuetral if you want it in 4low, otherwise push the 2hi button and be on your worry free way. __________________ i'd rather be hunting

08-29-2009, 10:31 PM	#3
hotrodpc Senior Member Join Date: Jul 2008 Location: OKC, OK Posts: 3,149	Yep, Its waiting for you to stop the vehicle, go into Neutral then once its engaged, it will stop blinking, stay solid lit, to tell you its engaged and you can now go into gear and move. IF you are doing all that right and it continues to blink, then you likely have a defective engagement solenoid and it is not going to engage. __________________ *Winners NEVER Quit , Quitters NEVER Win !!!*

08-30-2009, 08:19 PM	#5
hotrodpc Senior Member Join Date: Jul 2008 Location: OKC, OK Posts: 3,149	That is normal for it to blink, then should go solid after a few seconds telling you that 4high has engaged. IF its not doing that, then I would first suspect the solenoid on the transfer case. __________________ *Winners NEVER Quit , Quitters NEVER Win !!!*

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