97 d90 will not shift into low gear or diff lock - Defender Source
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  #1  
Old March 22nd, 2015, 07:23 PM
Noah97
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97 d90 will not shift into low gear or diff lock

97 d90 will not shift into low gear or diff lock. Any ideas already. Thank you Noah
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  #2  
Old March 22nd, 2015, 07:26 PM
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john
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Hi Noah lots of threads on here about that issue.. try searching.. I just recently had that problem and it turned out to be the difflock switch plunger was stuck and wouldn't let it engage.
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  #3  
Old March 22nd, 2015, 07:53 PM
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Chris
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Wondering if its a lack of use issue. Might be worth taking the truck out for a nice long drive. Getting it good and hot then trying. Is truck new to you?
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A friend of mine runs a land rover / range rover specialty repair shop. Based on his experience, they are capable of stopping anywhere, anytime, at any cost.

I don't know about the brakes, only their unreliability.
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  #4  
Old March 22nd, 2015, 08:11 PM
Noah97
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I know it's from lack of use - I've owned it since new. I don't use it in low very often. I didn't understand what the plunger mechanism does or where the diff lock plunger is?? I'd love some guidance. First time dealing with the T-case. I already have the center ripped out. Thanks a bunch!
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  #5  
Old March 22nd, 2015, 09:19 PM
Noah97
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Thanks Jeff
Tried that also I seperated the splined coller on the out side of the shifter and it moves all around. The arm that goes to the t-case is stuck. I am going to try the diff plunger.
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  #6  
Old March 22nd, 2015, 09:47 PM
Noah97
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Thanks Jeff
Going to order the diff lock switch and see if that works

Noah
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  #7  
Old March 22nd, 2015, 09:53 PM
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Unscrew it half way out and see if that works.. no need to wait for the switch to try engaging it. fyi i ordered mine from Rovahfarm.
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  #8  
Old March 22nd, 2015, 09:54 PM
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The solenoid is only for the high/low shifting. The diff lock should still work.

The solenoid should be thrown away.
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  #9  
Old March 22nd, 2015, 09:55 PM
Noah97
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I do like the rovahfarm

------ Follow up post added March 22nd, 2015 06:59 PM ------

Thank you everyone for your help. Keep you updated
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  #10  
Old March 22nd, 2015, 09:59 PM
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As John says, if teh switch is in the way, it does not need to be replaced, just adjusted. See the manual.
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  #11  
Old March 22nd, 2015, 10:50 PM
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Noah,

You have two different unrelated issues. Since they are functions that are actuated off of the same lever people often relate them but they are separate functions.

-Diff lock wont engage
-Cant shift from hi range into low range.

On my 97 disco I had to remove the Hi-Low lockout solenoid as mine had failed closed and I couldn't shift into low range. On the 90 you have it easy since you can just remove the transmission tunnel and the round cover piece is right there and easy to access. On the disco you have to remove the shifter, center console and its still a PITA to get to the four 8mm bolts securing the cover plate.

As far as diff lock - Can you disconnect the linkage at the CDL nipple on the transfer case and lock the CDL with a wrench? If you can lock the CDL in that manner then your linkage just needs to be taken to bits and cleaned, lubed and adjusted.
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  #12  
Old March 22nd, 2015, 10:50 PM
Noah97
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Jeff
Where is the solenoid (high and low) located.
Thank you
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  #13  
Old March 22nd, 2015, 10:54 PM
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If your dome light is burned out check the fuse...it also controls the solenoid.Don't ask me how I know.
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  #14  
Old March 22nd, 2015, 11:02 PM
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Quote:
Originally Posted by Noah97 View Post
Jeff
Where is the solenoid (high and low) located.
Thank you
High - low solenoid locaition is circled in red.
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  #15  
Old March 22nd, 2015, 11:07 PM
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Quote:
Originally Posted by Noah97 View Post
Jeff
Where is the solenoid (high and low) located.
Thank you
On top of the transfer case, in front of the parking brake.

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  #16  
Old March 22nd, 2015, 11:17 PM
Noah97
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So then I just unplug it and throw it out.
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  #17  
Old March 22nd, 2015, 11:25 PM
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But it is there for a reason...
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  #18  
Old March 23rd, 2015, 12:04 AM
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Yes well I don't like those californication liberal views...mine is staying...I expected Smigle to pop out in that video...that must have been what middle earth was like before the "ring"!
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  #19  
Old March 23rd, 2015, 06:06 AM
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Quote:
Originally Posted by Bill Larson View Post
But it is there for a reason...
Not being able to shift while moving remove a lot of functionality from the transfer case.
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  #20  
Old March 23rd, 2015, 06:46 AM
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Quote:
Originally Posted by JSBriggs View Post





Yea, the Safety police.
It was never there on the 87-88 RRC that had the same set up (ZF/LT230)
Please...think of the children...


.
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