Vehicle: 92 TBI 4x4
Problem: Failed emissions and no 4x4.
So, I started in a likely place. Replacing the vacuum hoses.
Step one, replace the main hose. 7/32" , about 1 foot
Here the 7/32" line goes into a series of splitters(arrows)
Next you will use 5/32" hose. Replace the line to the vacuum ball. Just follow the hose route and replace.
Warning: be careful pulling all connections as you could break the plastic fitting. I suggest slitting hose.
Next replace the hose to this item? anyone know what it is?
All right. Now for the fun part! Replacing the transfer case lines.
Start by jacking up the truck and locating the vacuum connection on top of the transfer case.
Pull the fitting out. The easiest way to pull the lines of is to slip it over the top of the case so you have some slack to work with. Remember to slit the lines to pull them off. And mark which line is which.
Now you must pull the old lines and run the new. The area where the old lines ran up the fire wall is very tight and I couldn't pull the new line through with the old one , so I just ran it in a new location. I used a piece of tie wire taped
to the line to pull them down from the engine compartment.
The old lines ran on the other side of the tranny dipstick tube.
Here they are sticking out in the engine bay.
Now just reconnect them and you are done.
One connection is here:
The other is under the battery.
I need toi go back and replace the vent hoses, but I didn't by enough 7/32 hose.
Repairs include w/in first 30 days of owning it: P1870, left front wheel bearing, gas cap, rad cap, idler tensioner, seat handles, and the list goes on.
