no 4x4 indicator

picott · 09-14-2005, 02:18 PM

in my truck i have automatic locking hubs, so i have a switch not 4-on-the-floor lever, when u turn the key the indicator flashes twice to show its working, my truck no longer blinks, and of course when i push the switch for 4LO or 4HI i get nothing, anyone have this problem, i dont think there is a problem with the vaccum lines or t-case but i could be wrong, anyone?

02sten · 09-16-2005, 07:41 PM

What year is your truck?

picott · 09-16-2005, 07:56 PM

Quote: Originally Posted by 02sten

What year is your truck?

92

yamaha405 · 09-16-2005, 09:10 PM

check your fuses maybe? i have no idea, just a suggestion. Chris---

02sten · 09-16-2005, 11:08 PM

I would also say check your fuses. It has got to be a fuse. Do you hear any kind of noise when you press the button to engage the 4wd?

fmfredrider501 · 09-20-2005, 01:04 AM

First off, you dont have auto locking hubs. if so you'd have an actual hub sticking out in the middle of your wheel like old solid axle trucks. S10's never had any type of manual or auto locking hubs from the factory. They have sealed unit bearings, the halfshafts turn all the time in 2 or 4wd. There is a center axle disconnect (CAD) in the front chunk that disengages the axle so the front driveshaft doesnt spin in 2wd.

Now onto your problem, it is probably the encoder motor on the t-case. Its what shifts the ones with the electric shift (pushbutton) 4x4. They are very common to fail, but expensive to replace. That would be my guess. If thats not it, you may have a vacuum issue thats not locking in the front axle at the CAD, but my bet is the encoder motor.

09-14-2005, 02:18 PM	#1
picott Registered User Age: 22 Join Date: Oct 2004 Posts: 19 Location: orlando, fl User is: OffLine	no 4x4 indicator in my truck i have automatic locking hubs, so i have a switch not 4-on-the-floor lever, when u turn the key the indicator flashes twice to show its working, my truck no longer blinks, and of course when i push the switch for 4LO or 4HI i get nothing, anyone have this problem, i dont think there is a problem with the vaccum lines or t-case but i could be wrong, anyone?
	[Reply w/Quote]

09-16-2005, 07:41 PM	#2
02sten Registered User Join Date: May 2004 Posts: 1,519 Location: User is: OffLine	Re: no 4x4 indicator What year is your truck?
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09-16-2005, 07:56 PM	#3
picott Registered User Age: 22 Join Date: Oct 2004 Posts: 19 Location: orlando, fl User is: OffLine	Re: no 4x4 indicator Quote: Originally Posted by 02sten What year is your truck? 92
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09-16-2005, 09:10 PM	#4
yamaha405 IATVHSS #904 Age: 22 Join Date: Jul 2005 Posts: 614 Location: Council Bluffs, IA User is: OffLine	Re: no 4x4 indicator check your fuses maybe? i have no idea, just a suggestion. Chris---
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09-16-2005, 11:08 PM	#5
02sten Registered User Join Date: May 2004 Posts: 1,519 Location: User is: OffLine	Re: no 4x4 indicator I would also say check your fuses. It has got to be a fuse. Do you hear any kind of noise when you press the button to engage the 4wd?
	[Reply w/Quote]

09-20-2005, 01:04 AM	#6
fmfredrider501 Off Roadin' Member Age: 22 Join Date: Oct 2002 Posts: 1,277 Location: boone county, WV User is: OffLine	Re: no 4x4 indicator First off, you dont have auto locking hubs. if so you'd have an actual hub sticking out in the middle of your wheel like old solid axle trucks. S10's never had any type of manual or auto locking hubs from the factory. They have sealed unit bearings, the halfshafts turn all the time in 2 or 4wd. There is a center axle disconnect (CAD) in the front chunk that disengages the axle so the front driveshaft doesnt spin in 2wd. Now onto your problem, it is probably the encoder motor on the t-case. Its what shifts the ones with the electric shift (pushbutton) 4x4. They are very common to fail, but expensive to replace. That would be my guess. If thats not it, you may have a vacuum issue thats not locking in the front axle at the CAD, but my bet is the encoder motor.
	[Reply w/Quote]