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Old 12-22-2010, 09:56 PM   #1
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RR DIF LOCK

i have a '99 tacoma pre-runner 3.4 Liter V6 2 wheel drive that has the rear differential locker. i haven't used it in ages and when I try to engage it the light just blinks and blinks. I can't find any info on how to trouble shoot it or fix it. any advise would be appreciated..
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Old 12-23-2010, 06:12 AM   #2
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Did you try backing up and turning from side to side?
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Old 12-23-2010, 06:22 AM   #3
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Not sure if the autos have to be in neutral or park when engaging the diff lock. Try both and see if either one works.
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Old 12-23-2010, 01:40 PM   #4
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did circles at 5 mph right to left and left to right both forward and in reverse...still blinking only.

anything else i can do? oil? lubricant? where is the RR DIFF located?
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Old 12-23-2010, 01:42 PM   #5
What's the matter, Colonel Sandurz? CHICKEN?
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are you in 4lo because you have to be in 4lo, unless you've done they grey wire mod, to engage the rear locker.
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Old 12-23-2010, 01:55 PM   #6
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i have the automatic trans.

There used to be a label / sticket on the driver side door with full instructions. any body have a 99 taco that still has that (mine peeled off years ago.)
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Old 12-23-2010, 01:56 PM   #7
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Quote:
Originally Posted by moto932 View Post
are you in 4lo because you have to be in 4lo, unless you've done they grey wire mod, to engage the rear locker.
hard to be in 4lo if he's a prerunner
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Old 12-23-2010, 02:02 PM   #8
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Quote:
Originally Posted by tigerfan00 View Post
hard to be in 4lo if he's a prerunner
Thats what I was thinking...

OP~
The locker is part of your rear dif... When was the last time you changed the dif fluid?? Every once in a whil I have to wait a few minutes for it to engage... when it does engage, the "RR DIF"" light will go solid and if you have ABS that light wil kick on as well... Let me run out to my truck and take a pic for you of the instructions. I'm not sure if its different for 4WD's though?!

Here it is... Good Luck!
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Old 12-23-2010, 02:57 PM   #9
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thank you! I am off to do circles and 3 point turns around my block. neighbors think im crazy today.
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Old 12-23-2010, 03:19 PM   #10
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I would try and keep it off the pavement if you can.
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Old 12-23-2010, 04:22 PM   #11
What's the matter, Colonel Sandurz? CHICKEN?
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Quote:
Originally Posted by tigerfan00 View Post
hard to be in 4lo if he's a prerunner
someone needs to read a little slower so they pick up all the details.

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Old 12-24-2010, 11:41 PM   #12
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[The locker is part of your rear dif... When was the last time you changed the dif fluid??


I'm not sure when the last time it was changed out? Mabe during the last big service I had done?? I DIY now though and I want to learn. Is changing out RR DIF fluid sometime a rookie can do?
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Old 12-25-2010, 11:49 AM   #13
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found this video. seems pretty easy...

http://www.youtube.com/watch?v=jLFOfji_Ow4
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Old 12-25-2010, 12:26 PM   #14
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Great Video!!
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