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Humming when 4x4 is engaged!!!!

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21 Sep 2010 15:45 #4776 by mostafa
Humming when 4x4 is engaged!!!! was created by mostafa
I'm buying a used 1999 Jimny form a friend and i'm still checking some problems to know if the r that critical or can be easily handled

that car got a engine in a very good condition as we checked it the problem is a humming sound is heard when 4x4 is engaged. that sound can be heard from the front axle. it sound like a problem in the diff.
is it only diff oi problem or it means that there is a problem with front diff gears?

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21 Sep 2010 15:47 #4777 by ooky_123
has the car been offroaded in the past ?

It may be that the front diff has hardly been used and is in need of an oil change / some use !!!...

Former owner of Little "Ooky", who has now started a new life in Shetland

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21 Sep 2010 16:15 #4778 by mlines
Are you trying to drive it in 4x4 when on a surfaced road?

The Jimny 4x4 system should only be used on rough tracks or off-road.

Martin

Martin

2003 M13 early KAP build.
3" Trailmaster lift with 1.5 Spacers on front
Customised winch bumper and roll cage
235/85R16 Maxxis Bighorns on 16" Rims, 4:1 Rocklobster, Rear ARB locker and on-board air
Corrected arms all-round, rear disks, Recaro seats and harnesses

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22 Sep 2010 13:33 #4786 by mostafa
Replied by mostafa on topic Re:Humming when 4x4 is engaged!!!!
it was not used for offloading before!

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22 Sep 2010 13:35 #4787 by mostafa
Replied by mostafa on topic Re:Humming when 4x4 is engaged!!!!
Are you trying to drive it in 4x4 when on a surfaced road?

yes i'm trying the 4x4 on normal road, but my wife got 2009 jimny and i ddnt hear any humming voice when i tried to engage the 4x4 on thenormal road

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24 Sep 2010 08:22 #4798 by ooky_123
sounds to me like lack of use .... I wouldnt worry about it if everything is working, the hubs engage ok.

Get the diff oil changed ... and take it from there.

Former owner of Little "Ooky", who has now started a new life in Shetland

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26 Sep 2010 11:04 #4833 by mostafa
Replied by mostafa on topic Re:Humming when 4x4 is engaged!!!!
diff oil has been changed
i noticed that that voice is only heard when im tying the low 4wd
and its ok with the high
i tested another jimny with the same sohc and i can hear that voice when the low if engaged!
is it normal?

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27 Sep 2010 11:32 #4842 by ooky_123
Sounds normal to me .... Ours Whines when in low ratio as does my fathers.

Former owner of Little "Ooky", who has now started a new life in Shetland

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