so i put the truck in the shop for this mystery problem, got it back out and my 4x4 wont engage. i know the mother fers did somethin to it but i cant prove it. it was workin fine before it went in the shop.
1st, people are way to quick to blame the shop for stuff like this. Often times, the problem existed beforehand, but people are much more critical about this stuff after
the vehicle has been worked on. I can't count how many times I've been blamed for problems that people only noticed after I did service work. Fortunately, I'm very conscientous and make careful notes of vehicle damage or pre-existing problems, and all it takes is pointing to the notation on the invoice.
Secondly, don't, I repeat, DO NOT go around badmouthing them until you've given them a chance to A) see if the problem is even related to the work they did and B) if so, take care of it. Things do happen sometimes and a good shop will fix it expediently and with apologies. Only if it is definitely
something they caused and they refuse
to fix it do you have the right to rant about them.
There certainly are shady shops that do slapshod work and send the customer packing. But more often I find that someone made an honest mistake and rather than take it back and give them the opportunity to make it right, people will go somewhere else to have it fixed and then scream about how they got screwed.
I get people in all the time making a big fuss about something that is broken or inoperative and how everything was fine before X shop two towns over worked on it. More often than not, I discover that their problem had absolutely nothing
to do with the repairs the other shop made. Something the other shop should have noticed? Perhaps, but not their fault the problem existed. Just money they lost by not being thorough.
Now, there are basically four possible causes of your problem. One, shift linkage is not connected. Two, transfer case is fragged. Three, disconnected or broken vacuum line, switch or actuator. Four, the slip collar, fork or axle stubs are damaged/broken.
Most often, it is either a diconnected line, bad switch or leaking actuator diaphragm.