Gotta get paid first

 

Aw, come on. It's only 2 cables and you work at Napa. LOL.

 

Crack that whip!

 

The vac switch at the shifter applys vacuum to engage the collar onto the splines in the vac disco. When it has actually moved over, that opens a port to put vacuum to turn on the 4WD light. That's why there are three. I believe running in 2 WD, you should have vacuum to one side to keep it from "growling"

Besides cleaning up the wiring, so you can actually test things to see what's going on without chasing your tail all day, you might want to make sure that isn't grinding, 1/2 *** trying to engage!

Here's some pics of it, (but I like having mine working) https://www.cherokeeforum.com/f51/fr...ss-91-a-38629/




Also, if you click on my signature, there is some stuff Cruiser wrote.

 

my rough idle came back today and i looked and alot of my vacuum lines are capped is that healthy?

 

No not at all, i have an 89 renix also, none of mine are capped. Do you have the vacuum diagram on the firewall still? If not I can try to find a diagram thats decent for you. I'd pick up a roll of soft vacuum line and replace them all if i were you, alot of my old hard plastic ones were cracking and brittle, I had to do it eventually anyways just to pass smog inspection

 

X2. there is probably something on that here> https://www.cherokeeforum.com/f51/he...ix-links-1397/

 

alright all the lines in that diagram are good except the crankcase vent tube it has a breather on the air box and right off the valve cover the ones that are capped are i believe from the vac ball on the bumper

 

89 here as well. My tranny shifted weird too. Then my tps got wet and died. Installed a new tps and calibrated per instructions here. It's like I got a new transmission for $40!

Not sure if it was mentioned already. Add a ground strap from neg battery cable to header panel. Add one from engine block to header panel and lastly, add one from intake bolt to firewall bolt. Scrape paint off and add dielectric grease to these connections and every electrical connector under hood.

 

o and shouldnt my idle change if i unplug my iac valve unless its bad

 

Not a good test.

 

Nope. It's a stepper motor and if it's in the right position to idle, it'll stay there when you unplug it.

 

The extra cables are mentioned in my ground refreshing write-up, with part numbers, and it is INDEED a great idea to add them.

 

Did everything today cruiser still gotta do a test drive next is coolant flush trans filter change air filter and cap rotor and wires

 

Good. Get that tune-up stuff done. Get a cap and rotor with brass contacts and use good quality wires like the ones from Napa. I use NGK Copper plugs but other guys swear by Champion Coppers. Either will be fine. Just don't try some "miracle" plugs for sure. I would also change the fuel filter as then yo will know it has been done.

Have you straightened out the vacuum hose mess? Do you still need a diageam?

Sometime when your engine is cold, snug up your intake manifold bolts. They're known to work loose.