<!-- from fixya rte -->09 Tacoma 4x4 won't engage, it just blinks - 2009 Toyota Tacoma

check that the 4x4 actuator in the transfer case is engaging
( vacuum lines or electrical solenoid)
check that the auto engage for the front wheels is engaging

check that the clutch is fully engaging by checking if there is free play at the throw out lever and clutch push rod . If you cannot push the rod back into the cylinder then the slipping is because the clutch is only partially engaged. Replace the clutch master cylinder if that is the case. If it is right then the fault will be in the pressure plat/ cutch plate and it may require a clutch kit.

On these issue,there are few solved help links for troubleshooting the issue easily.-------

Click the link below:---
No 4x4 light on dash?

http://repairhelpcenter.blogspot.com/2011/12/no-4x4-light-on-dash.html

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4X4 Truck makes roaring noise in the front end?

http://schematicsdiagram.blogspot.com/2012/01/4x4-truck-makes-roaring-noise-in-front.html

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Car will not go into 4WD high or 4WD low?

http://schematicsdiagram.blogspot.com/2011/12/car-will-not-go-into-4wd-high-or-4wd.html

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No 4x4 light on dash?

http://repairhelpcenter.blogspot.com/2011/12/no-4x4-light-on-dash.html

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4 wheel drive system will not disengage?

http://technoanswers.blogspot.com/2012/01/4-wheel-drive-system-will-not-disengage.html

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4WD light is flashing and beeping? NO 4WD high?

http://schematicsdiagram.blogspot.in/2012/02/4wd-light-is-flashing-and-beeping-no.html

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2002 Jeep Wrangler: 4WD Idiot Light is ON?

http://technoanswers.blogspot.in/2012/06/2002-jeep-wrangler-4wd-idiot-light-is.html

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Traction control switch will not engage on 4WD High or Low

http://whoisbyme.blogspot.com/2012/10/traction-control-switch-will-not-engage.html

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4WD light flashing and 4WD will engage after few minutes

http://repairhelpcenter.blogspot.com/2012/10/4wd-light-flashing-and-4wd-will-engage.html

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2008 Toyota Tundra: 4x4 Wheel Drive Light is Flashing?

http://technoanswers.blogspot.in/2012/05/2008-toyota-tundra-4x4-wheel-drive.html

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4x4 front differential will not engage the axle on ford?

http://technoanswers.blogspot.in/2012/02/4x4-front-differential-will-not-engage.html

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4x4 will not engage on Ford F150? http://technoanswers.blogspot.in/2012/02/4x4-will-not-engage-on-ford-f150.html

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Dodge Ram 4x4 light keeps flashing 4X4 LOW LIGHT IS FLASHING ON DASH

http://technoanswers.blogspot.in/2012/09/dodge-ram-4x4-light-keeps-flashing.html

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Ford 4x4 front wheels will not engage?

http://technoanswers.blogspot.in/2012/02/ford-4x4-front-wheels-will-not-engage.html

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These details will help.

Thanks.

sounds like you may need the encoder motor

Drain out the lube and refill with fresh.

I currently have a 1998 Toyota Tacoma, and the clutch pedal does not return all the way. I know it is not the clutch, it is actually the spring located underneath the pedal. It is catching and not releasing after pushed.... Hope it helps.

Do you have all 4 tires matched to each other? If you have 1 worn and 3 new, expect problems. Also, 2 tires on the front from 1 mfgr and 2 on the rear from a different mfgr will cause no 4WD. If all 4 tires match, put it in 4WD and tap on the transfer case and the front shift mechanism on the front axle. One or the other may be stuck, assuming that the 4WD fuse is good. The fuse is in the fusebox under the dash.

more than like have a broken axle shaft, un hook the rear drive shaft and put it in 4wd if it wont move then you know you got a broken axle shaft or spider gears broke in the pumpkin

Glad to provide you with my assistance.

It is my opinion that the shift motor/actuator inside the transfer case is compromised. I have observed this several times. The shift motor has contacts that actuate the front axle disconnect device, as well as engageing the 2-4WD modes. If all the wires are good, and all the connectors are clean, the remaining item will be replacemnt of the transfer case shift motor, this would be the solution.
Hope this help you, and thank you for choosing FixYa.