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4 x 4 is not engageing. Mechanic told me that the electronics are not lining up the gears in the tranfer case? stated they were out of alinement. 500.00 to fix?

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Take it to another garage......no gears need electronic alignment,in any car.(mind you, i could do with $500........)there is an electromagnetic switch for the transfer box,but that is not $500 to fit.
just thought...i could fly over from england,fix it,have a holiday,and fly back, for not a lot more than $500.

Posted on Jul 15, 2010

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1 Answer

Is my 4 wheel drive mechanical or electriacal 1995 4runner


that's funny, there is no electrical 4wd, its got gears.
all have gears.
what some do is have electric acatuators to shift or just to
engage front locking devices.
who to tell on old car>
1: look, is the front axle with outboard hub lockers, manual; or auto?
bingo 100% mechanical,
under newer cars the front axle (look at it) see motor pump or vaucum
lines that run the auto locking axle.
2: look at shifter, is it a lever, , with linkage to transfer case, bingo mech. if only switches, its electrical.

see FSM
or alldata.com
i look for you.
and......
I see manual locking front hubs, (no elect)
and the transfer case?
most are linkage
but there are 2 transfer case options
RF1A (counter gears) or VF1A planetary gear reduction unit. transfer case.
the dash has a simple idiot lamp that means the tranfer
case thinks its in 4wd but never really knows for sure.
its just a switch. i never look at it. i feel my gears at all times
by seat of pants.



Dec 05, 2013 | 1995 Toyota 4Runner

2 Answers

How can you tell or know if your tranfer case is bad/well i just purchase a new 4wd switch,because i thought that was the problem.but now it will be in some strange gears on its own and what so bad about i...


If your transfer case is bad (broken fork, gear, shaft or something) It could engage both the low and the high ratio gears at the same time. The vehicle will not move if this happens even if you put your foot in it and try to power out of it. Two ratios cannot be engaged at the same time. Just by your description, it sounds like something like a shift fork or shaft has broken loose from the selection gear and this is allowing the gear to slide on its own unchecked, randomly engaging and dissengaging ratios. I would have a trustworthy shop take a look right away. Any reputable shop could diagnos a transfer case problem within an hour. The shop should charge 1 hour diagnostic time to tell if it is bad and what needs to be done to correct it. If they need to take longer than that then have them tell you why, and it better be good.

Good luck, and if you have any further questions- just ask!

Mar 31, 2011 | Chevrolet Silverado 1500 Cars & Trucks

1 Answer

2004 ford fx4recently i dropped off in a rut on frontandwhen i engaged 4 wheel drive i heard a racheting noise.no four wheel drive now.mechanic told me it was cv joint but i dont understand how a little...


Sounds like the IWE ( Integrated Wheel End ) did not lock in for some reason.

Could be the IWE solenoid did not shut off the vacuum to the wheel ( usually the solenoid problem is the other way around ).

Could be the vent tube from the IWE into the engine compartment is plugged.

Also could be a problem with the transfer case.

Is the system ESOF ( Electronic Shift On the Fly ) or MSOF ( Mechanical Shift On the Fly ) ?

Operationally vacuum holds the IWE ( Integrated Wheel Ends ) out, and once vac is removed the spring engages the IWE.

Lift and support the front of the truck so the front wheels are off the ground ( take safety precautions, chock wheels, jack stands, etc )
Key on, engage 4x4 and try to turn the front drive shaft.
If it turns it is a problem with the transfer case.
If it doesn't it is a front axle engagement problem.

- If the front drive shaft does not turn :
Shut of the truck ( still jacked up, and supported ) remove the vac lines from the IWE. The spring should push the gears in, without the vac line on.
Check the vent line ( tube that is routed into the engine compartment with nothing attached to it ), for blockages.
If the vent line is clear, and with the vac lines off the IWE should be engaged ( both front wheels locked ).
If they lock, the problem is with the IWE solenoid not shutting off vacuum to the IWEs. There is a TSB on the 2004-2006 IWE solenoids, a newer revision has been made, and used from 2007 and newer MYs.

Here is a block diagram of the IWE system
1f40571.jpg

Start with the lifting and supporting the front of the truck to check the front drive shaft when 4H or 4L is engaged to know which way to look.

Some times the connector on the transfer case for the ESOF version can be corroded and just needs to be cleaned.

Jun 23, 2010 | 2004 Ford F150

1 Answer

My 1991 jeep cherokee will not engage all four tires when its put into 4wheel drive. the T-case engages but for some reason only the 2 back tires spin. is there a vacum line that may be cracked?


could be, there are lines that run to frt diff, theres a vacuum reservoir that stores vacuum that comes from engine then theres aline tovacuum control switch then to vacuum swith to light the 4wd light and a line to shift motor that engauges the front wheels, check all these line and you might find a bad leaking line hope this helps.

Dec 24, 2009 | 1991 Jeep Cherokee Limited

1 Answer

Four wheel drive wont engage. Tranfer case is


Sounds like you either have a vaccum leak or your 4 wheel drive actuator is not working to engage the front differential.On my 98 ram there is a black and red plastic lines that are used for the vaccum lines. They are underneath and go from the transfer case to the front axle, check to see if one or both might be cracked or broke completely.If the lines are good then it could be your actuator on the front axle. A new one is about $93 at advance auto parts and not very hard to replace

Dec 15, 2009 | 1998 Dodge Ram 1500 4WD

1 Answer

01 chevy silverado4x4 transfewr case


Changing the Fluid would help But, It will not solve the Problem. It sounds like you may have a Broken tooth on a Gear inside the Transfer Case. The only real way to fix this is to Take the Transfer Case off and check the Gears and Electronics. Maybe even get it Overhauled.

Jan 24, 2009 | 2001 Chevrolet Silverado 1500

2 Answers

91 Jeep Wrangler Sahara, 2WD won't engage, 4WD is fine!


It sounds like your driveline to the rear wheels is broken. Could be transfer case output shaft to the rear wheels has broken. Try disconnecting the rear drive shaft and see if you can turn it by hand with the transfer case engaged in 2WD. If you can turn it while the Sahara is in gear, the output shaft is no longer connected to the engine for some reason.

Dec 29, 2008 | 1991 Jeep Wrangler

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