4x4 not working

fireman1559 · 07-24-2008, 07:11 PM

i just bought my second toyota sr5 pickup i had a ford it was crap from day one but anyways i just got the truck and the guy i bought it from said that the front 4wheel drive was not working and i know you have to lock the front yourslef but that still doesnt do anything any help wold be great

thanks mike

one2high · 07-24-2008, 07:24 PM

Does the front driveshaft turn when you put the transfer case in 4hi or 4lo? If not, you need to troubleshoot the transfer. If it does, then, you need to start with the hubs and work your way in to the third member.

TOYOTA 1 · 07-24-2008, 07:30 PM

x2.......

fireman1559 · 07-24-2008, 08:15 PM

yes the driveshaft turns when it is in 4hi and 4lo

RobD · 07-24-2008, 08:26 PM

Does it have locking hubs on the front, such as Warn or Aisin, or does it have the ADD system?

fireman1559 · 07-24-2008, 09:11 PM

its all stock so i have no clue

Jay351 · 07-24-2008, 09:13 PM

Or does it have both? To check for ADD, look at the front differential, there should be an actuator on the drivers side stub shaft, and some vacuum hoses comming out and going into the engine bay.

What kind of hubs do you have? Go and look on the hub dial, it should say...

fireman1559 · 07-24-2008, 10:03 PM

im gonna say it has the ADD my first yota did its to dark to tell but i think it does

Jay351 · 07-24-2008, 10:08 PM

Check it out tomorrow. If it does, there might be a problem with the actuator or vacuum hoses.

Does the 4wd light come on? Do you here a click when placed into 4wd?
Does it do anything different then your other rig?

fireman1559 · 07-24-2008, 10:12 PM

the light comes on and i hear a click

904_runner · 07-24-2008, 10:16 PM

If the light comes on i thought that meant the front shift tube is in the locked position. How does this guy know the 4wd doesn't work? If i were you i would jack up the front end and turn the truck on and put in 4wd, then turn one of the front wheels and see if the other one turns, this should also turn the driveshaft if it working

fireman1559 · 07-24-2008, 10:19 PM

i had it on a lift in a shop checking things out before i bought it thats when the guy told me the front 4wheel drive doesnt work

904_runner · 07-24-2008, 10:28 PM

okay, well when i first got mine it didnt work either, i ended up throwing on some manual hubs, and messing with the vacuum lines in order to bypass the vsv switches for the A.D.D and locks the shift fork in place.

sorry, i cant post the link for some reason, search for it

"many many questions" Only a few days ago

well there are some pictures, you can only do this if you put manual hubs on. I would try diagnosing your problem unless you want to switch from A.D.D to manual

TomThumb · 07-25-2008, 04:57 AM

If you hear a "Click" should be from behind the dash, that means that the shift lever is engaging the ball switch in the trans case and activating the ADD relay. Which will in turn activate the VSS switches under the hood on the pass side. The light coming on the dash should only happen when the locking sleeve has moved over on the front axle putting the truck in 4x4, To me that would show that the add system is working correctly. If you can turn the front drive shaft with the truck in 4x4 and still on the ground my guess is you have issues with the Tcase internals.

Here is a great write up on the different systems used by Toyota found on the Offroad.com fourm. Also explains how to trouble shoot the add system. Found very helpful when geting mine fixed. Turned out to be a broken wire going from the tcase switch to the add relay behind the dash. Good luck!
http://www.off-road.com/trucks4x4/ar....jsp?id=399612

fireman1559 · 07-25-2008, 05:53 AM

thanks for yalls help i guess its time to see what i can do to get it fixed

07-24-2008, 07:11 PM	#1 (permalink)
fireman1559 Registered User Join Date: Jul 2008 Location: new market Alabama Posts: 32	4x4 not working i just bought my second toyota sr5 pickup i had a ford it was crap from day one but anyways i just got the truck and the guy i bought it from said that the front 4wheel drive was not working and i know you have to lock the front yourslef but that still doesnt do anything any help wold be great thanks mike

07-24-2008, 07:24 PM	#2 (permalink)
one2high Registered User Join Date: Dec 2007 Location: Wellsboro, PA. Posts: 17	Does the front driveshaft turn when you put the transfer case in 4hi or 4lo? If not, you need to troubleshoot the transfer. If it does, then, you need to start with the hubs and work your way in to the third member. __________________ 94 X-cab, SAS, LT1, T350, 205TC, 33" swampers, molded bushwackers 94 Springer Softail, 7 gal stretched tanks, 16" ape hangers, kick/electric start, dakota digital dash

07-24-2008, 07:30 PM	#3 (permalink)
TOYOTA 1 Registered User Join Date: Feb 2008 Location: oregon Posts: 849	x2....... __________________ 91 toyota stdrd cab short bed 22re 5spd. sas'ed hy steer. 3.5" tuff country e-z ride springs in the front. 5" allpro longtravels in the rear. es 9000's, 12" tg long spline front d shaft. k&n 35x10.50x15 boggers. cobra cb/ashtray mod, 3' firestick. etc. 2000 toyota tacoma xtra cab sr5, 3"revtek,285/70/17 coopers stt, clear tails, injen short ram intake, obx header, flowmaster, etc. 2001 toyota camry, the girlfriends, Sierra Club sucks!

07-24-2008, 08:15 PM	#4 (permalink)
fireman1559 Registered User Join Date: Jul 2008 Location: new market Alabama Posts: 32	yes the driveshaft turns when it is in 4hi and 4lo __________________ FIRST-truck 1990 SR5 pickup 4x4 cracked head ran for a year had over 360,000miles with the 3.0L v6 SECOND-truck 1997 ford f150 with the 4.2L v6 bearly 100,000 miles when it runs i got 8mpg WHEN it ran THIRD-truck 1990 SR5 pickup 4x4 3.0L v6 150,000 miles runs like i bought it in 1990 life lesson ford sucks toyotas rock!!

07-24-2008, 08:26 PM	#5 (permalink)
RobD Registered User Join Date: Jun 2006 Location: Calgary, AB Posts: 859	Does it have locking hubs on the front, such as Warn or Aisin, or does it have the ADD system? __________________ 1991 4Runner, 3.4 5VZFE swap, OME shocks/springs, 33" BFG All Terrain T/A KOs, Pioneer head unit, Infinity speakers, XM Satellite radio

07-24-2008, 09:11 PM	#6 (permalink)
fireman1559 Registered User Join Date: Jul 2008 Location: new market Alabama Posts: 32	its all stock so i have no clue __________________ FIRST-truck 1990 SR5 pickup 4x4 cracked head ran for a year had over 360,000miles with the 3.0L v6 SECOND-truck 1997 ford f150 with the 4.2L v6 bearly 100,000 miles when it runs i got 8mpg WHEN it ran THIRD-truck 1990 SR5 pickup 4x4 3.0L v6 150,000 miles runs like i bought it in 1990 life lesson ford sucks toyotas rock!!

07-24-2008, 09:13 PM	#7 (permalink)
Jay351 Contributing Member Join Date: Feb 2007 Location: maple ridge, British Columbia, Canada Posts: 5,151	Or does it have both? To check for ADD, look at the front differential, there should be an actuator on the drivers side stub shaft, and some vacuum hoses comming out and going into the engine bay. What kind of hubs do you have? Go and look on the hub dial, it should say... __________________ 91 Pickup - xcab - 5sp - 3.0 - sr5 - 4x4 - 220,000kms \|2.25" catback w/ magnaflow cat + glasspack \| Weasy2k cams \| Aisin manual hubs \|Diff breather mod \| Marlin HD clutch \|3" BL \| es3000's \|2" AAL \|1.5" bj spacers \| ISR \| Alpine headunit \| 4" Infinity fronts/5" rears \| 4.88's \|Rear lockright \| 33x12.50" BFG M/T on 15x8" steelies \|Hella 500's \|4" reverse lights\| Grant GT \|Downey idler arm brace\| Marlin armor \| Amsoil synthetic drivetrain fluids http://www.cardomain.com/ride/2572486

07-24-2008, 10:03 PM	#8 (permalink)
fireman1559 Registered User Join Date: Jul 2008 Location: new market Alabama Posts: 32	im gonna say it has the ADD my first yota did its to dark to tell but i think it does __________________ FIRST-truck 1990 SR5 pickup 4x4 cracked head ran for a year had over 360,000miles with the 3.0L v6 SECOND-truck 1997 ford f150 with the 4.2L v6 bearly 100,000 miles when it runs i got 8mpg WHEN it ran THIRD-truck 1990 SR5 pickup 4x4 3.0L v6 150,000 miles runs like i bought it in 1990 life lesson ford sucks toyotas rock!!

07-24-2008, 10:08 PM	#9 (permalink)
Jay351 Contributing Member Join Date: Feb 2007 Location: maple ridge, British Columbia, Canada Posts: 5,151	Check it out tomorrow. If it does, there might be a problem with the actuator or vacuum hoses. Does the 4wd light come on? Do you here a click when placed into 4wd? Does it do anything different then your other rig? __________________ 91 Pickup - xcab - 5sp - 3.0 - sr5 - 4x4 - 220,000kms \|2.25" catback w/ magnaflow cat + glasspack \| Weasy2k cams \| Aisin manual hubs \|Diff breather mod \| Marlin HD clutch \|3" BL \| es3000's \|2" AAL \|1.5" bj spacers \| ISR \| Alpine headunit \| 4" Infinity fronts/5" rears \| 4.88's \|Rear lockright \| 33x12.50" BFG M/T on 15x8" steelies \|Hella 500's \|4" reverse lights\| Grant GT \|Downey idler arm brace\| Marlin armor \| Amsoil synthetic drivetrain fluids http://www.cardomain.com/ride/2572486

07-24-2008, 10:12 PM	#10 (permalink)
fireman1559 Registered User Join Date: Jul 2008 Location: new market Alabama Posts: 32	the light comes on and i hear a click __________________ FIRST-truck 1990 SR5 pickup 4x4 cracked head ran for a year had over 360,000miles with the 3.0L v6 SECOND-truck 1997 ford f150 with the 4.2L v6 bearly 100,000 miles when it runs i got 8mpg WHEN it ran THIRD-truck 1990 SR5 pickup 4x4 3.0L v6 150,000 miles runs like i bought it in 1990 life lesson ford sucks toyotas rock!!

07-24-2008, 10:16 PM	#11 (permalink)
904_runner Registered User Join Date: Mar 2008 Location: Chico, California Posts: 1,316	If the light comes on i thought that meant the front shift tube is in the locked position. How does this guy know the 4wd doesn't work? If i were you i would jack up the front end and turn the truck on and put in 4wd, then turn one of the front wheels and see if the other one turns, this should also turn the driveshaft if it working __________________ -Mike 1990 4runner SR5, 3.0 with 251K, 5-speed, 4.56 gears, warn premium hubs, Hella 500's, Rancho 9000's, 33X12.50's trxus mt's, rear lock right, 4" trailmaster lift with lc coils in rear, panhard drop bracket One Day: 3.4 swap! www.myspace.com/222948743

07-24-2008, 10:19 PM	#12 (permalink)
fireman1559 Registered User Join Date: Jul 2008 Location: new market Alabama Posts: 32	i had it on a lift in a shop checking things out before i bought it thats when the guy told me the front 4wheel drive doesnt work __________________ FIRST-truck 1990 SR5 pickup 4x4 cracked head ran for a year had over 360,000miles with the 3.0L v6 SECOND-truck 1997 ford f150 with the 4.2L v6 bearly 100,000 miles when it runs i got 8mpg WHEN it ran THIRD-truck 1990 SR5 pickup 4x4 3.0L v6 150,000 miles runs like i bought it in 1990 life lesson ford sucks toyotas rock!!

07-24-2008, 10:28 PM	#13 (permalink)
904_runner Registered User Join Date: Mar 2008 Location: Chico, California Posts: 1,316	okay, well when i first got mine it didnt work either, i ended up throwing on some manual hubs, and messing with the vacuum lines in order to bypass the vsv switches for the A.D.D and locks the shift fork in place. sorry, i cant post the link for some reason, search for it "many many questions" Only a few days ago well there are some pictures, you can only do this if you put manual hubs on. I would try diagnosing your problem unless you want to switch from A.D.D to manual __________________ -Mike 1990 4runner SR5, 3.0 with 251K, 5-speed, 4.56 gears, warn premium hubs, Hella 500's, Rancho 9000's, 33X12.50's trxus mt's, rear lock right, 4" trailmaster lift with lc coils in rear, panhard drop bracket One Day: 3.4 swap! www.myspace.com/222948743 Last edited by 904_runner : 07-24-2008 at 10:29 PM.

07-25-2008, 05:53 AM	#15 (permalink)
fireman1559 Registered User Join Date: Jul 2008 Location: new market Alabama Posts: 32	thanks for yalls help i guess its time to see what i can do to get it fixed __________________ FIRST-truck 1990 SR5 pickup 4x4 cracked head ran for a year had over 360,000miles with the 3.0L v6 SECOND-truck 1997 ford f150 with the 4.2L v6 bearly 100,000 miles when it runs i got 8mpg WHEN it ran THIRD-truck 1990 SR5 pickup 4x4 3.0L v6 150,000 miles runs like i bought it in 1990 life lesson ford sucks toyotas rock!!

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