2 low woking, 4 low not working. (1 Viewer)

Joined
Aug 5, 2005
Messages
2,100
Location
Southern Interior, BC, Canada.
 
 
 
i suspect it's the linkage.
i can get 2 low but not 4 low,.
4 high is working and 4 low works when i press the four high vacuum button.

from what i can tell there is two parts of the linkage one part for 4 low and the other to engage the front d-shaft, if so it sounds like the linkage to the front s-shaft is not engaging correctly.

any help would be appreciated thanks.

will inspect today.

:beer:
 
Joined
Aug 5, 2005
Messages
2,100
Location
Southern Interior, BC, Canada.
 
 
 
rosco

going back to your suggestion on the vacuum lines.
do mean that the 4h could mess up the front d-shaft engagement, so that when you engage 4 low the front d-shaft does not engage correctly?
 
Joined
Jul 22, 2003
Messages
18,018
Location
Perth Western Australia
 
 
 
rosco

going back to your suggestion on the vacuum lines.
do mean that the 4h could mess up the front d-shaft engagement, so that when you engage 4 low the front d-shaft does not engage correctly?
I suggested swapping the vac hoses to isolate a bad vacuum solenoid or leaking hose. Swapping hoses reverses the operation of the switch. On becomes off.

Its also a way of getting home if one of the hoses is ripped off or holed.

When you select low ,it should automatically engages the front diff without pressing the 4x4 button.
Im not sure what happens if you have swapped the hoses.
I cant remember if 4L is engaged by an electrical switch or a lever connected to the low range shifter if the button has not been pressed:confused:
 

Ron R

Drive a Landruiser, enjoy life
Joined
Dec 20, 2006
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839
Location
The Netherlands
I cant remember if 4L is engaged by an electrical switch or a lever connected to the low range shifter if the button has not been pressed:confused:
When engaging 4low the lever actuates a switch. This switch is parallel to the 4High dashswitch.
If you are in low and don't get the 4WD light on unless you press the dashbutton there is something wrong with either the switch that is in de transferhousing or it's wiring.
If you reach above the transfer, near the handle, you will find a connector. From this connector two short wires lead to the righthand side of the transfer to the top of a switch that is screwed in the transfer. You should find connectivety between the two leads when the transferbox selector is set to 4 low.
If not, the switch is defect and has to be replaced.
If you find connectivety, there is a fault in the wiringharnass.

In my rig I have disconnected the switch. I allways have to push the dashswitch when I want 4WD. This way I'm able to select low gear without 4WD engaged. This is very convenient manoeuvring a trailer. But also to make tight turns in narrow conditions.
 
Joined
Jul 22, 2003
Messages
18,018
Location
Perth Western Australia
 
 
 
When engaging 4low the lever actuates a switch. This switch is parallel to the 4High dashswitch.
.
Correct;) I remember now that my 73 series has a different transmission wiring harness to my 75 which is a manual shift.
The manual shift is good ,but on a RHD in low range ,the shift lever is stuck into your left leg ,just below the knee.
Not much fun after 2 hours in low gear:mad:
 

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