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Ok and the mcu is under the dash or under the hood, I know this is a dumb question but I looked throughout the Chilton's and couldnt find the info on where it is

Hey does anyone know exactly where the high altitude jumper is on a 4.2 YJ

hey the carb-sol vac is that funny plunger assembly on the side of the carb, how do you adjust it and what does it do

If it is like the carter on my 88 258, those two hoses on the side of the carb run to the canister located on the right side of the engine compartment below your brake booster and overflow/windshield bottles

Hi I was looking through some threads and saw that you said you were still running the carter, does it have all the vacuum lines correctly connected, I have to smog soon in CA and have been looking at the vacuum diagram but still am a little unsure about a couple of ports

Hey how hot does your YJ run mine sits exactly between 100 and 210, and im a little cold in the snow. If that is the right temp any ideas on getting a little more heat out?

Ok I am thankfull for everyones input but as I stated I have three manifold ports not just two.

Yeah I read that, and spending some more time doing diagnostics im fairly sure i not only have a bad egr vacuum diaphragm but also a burned valve. I can suck air through the vacuum line running to the egr at idle which i think is contributing to the fast idle even though my mixture is good...

Ok so I just rebuilt my POS Carter 2 bbl and went to hook up vaccuum again and have a port on the back of my carb right below the stepper motor that is open and I cant figure out what goes there? Now I also cant get the thing to idle right. Ive read a bunch of stuff online and have figured a...

Hey so just re ran all most of my vaccuum lines in my 88yj 4.2L with the 2 BBL Carter...i know a pos....anyways when the brake booster connects to the intake manifold there is another vacuum port but I dont have any idea where it is supposed to run. According to the diagram I have in my Chilton...

Hey does anyone know where the MCU is located or more specifically where the high altitude jumper is. The chilton's manual says the jumper should be located next to the MCU but I cant seem to find out where that is. Also, anyone know of any good things to jumper it with? Thanks

Hey so was driving home and when I got out I noticed steam rolling out the hood. When i opened up the hood I saw coolant leaking out of the bottom of the intake, but not at the seal, it seemed more like a plug had backed out of the manifold and was letting all of my coolant out. Anyone have...

Thanks guys

Thanks for the input guys... One question Is the fan shroud mounted to the frame or why does everyone keep talking about moving the fan shroud? Oh and also did anyone have any problems with any hose lenghts or wire lengths?

Hey so I am looking to get a little more clearance on my YJ and was thinking about doing a body lift. It looks fairly simple and cheap as far as lifts go. I was only planning on doing a 1" lift. I read a walk through for a TJ, and everything seemed easy enough to do as long as you have...

Ok so I am thinking about changing the jet sizing because most of the driving I do is going to and driving around Tahoe. Right now everything is calibrated for sea level and I was wondering A) is it even worth adjusting the carb B) if so should I worry about jet size

Hey so I am putting my 4.2 st 6 back together after taking the carb off and have two connectors one is a two pin red and yellow right above the carb along with a single pin connector with a purple wire running to it also above the carb. Cant really find any open connectors so I am a little...

yeah it is I made a typo

4.2 liter St 6 YJ photos Hey anyone have any photos of said engine compartment, I had to replace my manifold gaskets and did it a little too hastily and forgot to take pictures and now am trying to remember where all the hoses and tubes go...also I would follow the wiring diagram except that...

well i was just trying to make the front diff stop spinning while i drive...and i know that the passenger side axle gets disengaged but i figured if i could make the entire thing not spin it create less wear