Hi, all I'm a newby here and reaching out for some assistance. I've got an '02 Duramax owned since new, that seems to have the symptums of a defective NSBU switch as discussed in this forum. I've removed the orginal black one with some difficulty with the larger plug, and am ready to install the new one.
Question 1
The new Dual Plug Tan NSBU looks like it has a keeper key that should be removed upon install, so I'm wondering should I shift the trans until it matches the locked location or ?
Question 2
It appears that there is some play in the lock-down bolts for fine tuning, is there a procedure to follow with this?
Question 3
The new NSBU has what looks like a vacuum hose connection between the plugs, does it have a purpose?
Thanks,
kamalot