Has anyone had troubles with the centre differential lock not lighting up on the dash - 08 ML GLXR Auto ?
Any suggested tips ?
RHKTriton wrote:I sometimes got the situation where lockup symptoms occurred when I engaged 4H just after I started the engine and started moving off.
I assumed the vacuum level hadn't built up in time.
Point I'm getting at is that the lockup may involve a vacuum actuator, maybe not functioning properly.
RHKTriton wrote:There are a number of switches on the gearbox/transfer case assembly.
Dud switch or broken wire between here and body wire loom entry would be place to check.
See the gearbox replacement thread, some good pics from memory.
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