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Push the buttom but won't engage 4 wheel drive

alanpayne

New Member
Joined
Jul 16, 2014
Messages
3
Country Flag
uk
She won't engage into 4 wheel drive. When I press the button i can hear relays switch and The vacuum switches under the bonnet start to do something but no light comes on on the dash and does not go in gear. could it be the diaphragm that is conected to the gear box. is this a common fault. anyone else had this. help please. thanks
 
I have the same issue, when I push the 4high button or select low box .. and engage the hub locker both lights come on hub lock & 4 High light are on but its not in 4wheel drive

I haven't checked underneath on the transfer box yet but it must be the diapharm part... sticking form lack of use maybe..
 
How do you know its not in 4wd does the front prop shaft turn, It could be the front hubbs are playing up!
 
I just installed manual hub locks on our kzj78.. the electronic hubs are prone to failure.. there are a few options out there for converting, but I bought AVM 463 hubs- they are a direct fit.. now I lock the hubs manually and then click the two buttons on the dash to put her in 4 wheel drive..
 
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