I ended up working 'till close yesterday and Advance was closed, so I will hopefully be picking the gasket up Monday or Tuesday and installing it. I'll keep you updated.

 

You painting the outside of the throttle body before installing it?

 

it's been two weeks and three tanks later and here's the verdict: tank one 14.2 mpg (very spirited chicago driving); tank two 16.7 mpg (mixed mostly city); tank three 19.4 mpg (mixed mostly freeway). because where i go and how i drive varies so much it's hard to pin down a solid number but there has been a gain in mileage - i'd guess 1-2. as for power/response gains, if anything there is an improvement low end and from a stop. it doesn't seem so doggy out of the lights so that's a plus. overall, great buy for the money. heck, if i only gained one mpg this thing would eventually pay for itself. do it

note- these numbers are for a 4.0 with 246,000 miles and a roof rack (jack, shovel, tire and lights) dragging in the wind

 

I thought about it, but I think it will look much cleaner without it. Cast aluminum never really looks good painted anyway.

 

Yes I would not suspect other wise as far as the gains you are experiencing. Worth the upgrade for sure.

Two questions:

1. Did you reset the computer?
2. Have you changes you fuel injectors to more efficient ones?
3. Do you have a cold air intake?

I am thinking that the change of these three things will bring around 2 to 3 MPG increase. Just my gut feeling.

 

The upgrades you mentioned here would definitely increase fuel milage and has been tested/proven many times. Injectors, proper intake setup, 99+ intake manifold, bored throttle body, better flowing exhaust systems, and mechanical fan deletes are easily the quickest/cheapest/easiest ways to get power and fuel milage gains on these OBD1 vehicles. Once you bump up to OBD2, things change a little bit, but not much.

 

U got any tb for a 97

 

Im out of cores at the moment....but with the list I have, it could be about 3 wks. I will put you on my list if interested.
thanks....

 

yup, reset the computer, the steps are actually somewhere in this thread but all i did was disconnect the leads while i was working and then touched them together. i'm planning on buying the 703's from that programbo guy when i've got a little cash floating around. finally, i have a k&n cone filter but until i built an air dam i don't think it would do any good.

xjfiles, i know it's slow but my 93 core is headed your way by wednesday. i'll pm you once it's gone

 

Alright guys, I stopped by Advance Autoparts today after work and picked up the gasket. Installed the new Throttle Body today and HOLY COW does it make a difference. The install was very easy (Or would have been if one of the sensor bolts didn't snap). Four T30 torx screws hold the throttle body to the manifold and two T20 torx screws hold each sensor in (TPS and Idler).

The Jeep has much better throttle response, smoother idle, and best of all.... It fixed my hard shifting. Before this throttle body install the Jeep would shift so hard from first to second you could spill your drink... Now it shifts like a brand new transmission. After taking my old throttle body off I realised my throttle spring is (was) pretty darn weak.

Bottom line: If you don't buy one of these for your Jeep at this LOW price, you are a COMPLETE MORON. (Not to offend anyone who decided not to buy one... but if that is you, you are dumb.)



Basic install guidelines: (Done on a '94 Xj 242ci, automatic w/o cruise control)

1: Get a GOOD set of Torx sockets. Husky brand from Home Depot is probably the cheapest you can find a half decent set. Also pick up a Throttle body gasket and some di-electric grease if you don't have any.
2: Open hood and disconnect battery using a 13mm wrench.
3: Remove plugs from TPS and idler (The two plugs on the throttle body)
4: Remove kickdown cable from throttle body. (Look at it to see how it comes off... you will see it simply just pops off)
5: Remove throttle cable from throttle body. (Again, look at it to see how it comes off... just pry it off to the side a bit and it should pop right off.)
6: Get yourself a ratchet, small extention, and a T30 torx socket and pull off the four bolts holding the throttle body in.
7: Pull the throttle body off of the manifold and check out how dirty it is and how much of a difference there is between your stock throttle body and your new bored throttle body.
8: Get yourself a T20 Torx socket and a ratchet and pull out the four (Two for each sensor) bolts. A table vise would be helpful, or atleast a friend to hold the throttle body for you.
9: Install the sensors on your new throttle body using a T20 Torx socket.
10: Put some di-electric grease in the plug connectors on the throttle body.
11: Place the new gasket on your manifold and bolt the new throttle body down in a crossing pattern to distribute it evenly.
12: Plug in your TPS and idler and connect your cables back up.
13: Adjust your kickdown cable. (Push the button on top down, push the black piece on the cable towards the button as far as it will go, then release the button and fully open your throttle. The kickdown cable should click into plae.)
14: Reset your computer. (Instructions earlier in this thread)
15: Hook up the battery.
16: Test drive and enjoy.

This is a VERY simple procedure. It may look like a lot of steps, but I broke it down as far as I could for those who may not know much about working on vehicles.

 

Wat if I send u a core?

 

Thanks Kopecki I will use this when mine arrives.

 

If you send me a core, I can turn one of these around in about 2-3 days!....I actually prefer that, because Im running out of sources for cores...

 

No problem! It's really self explanatory when you look at it. I just figured more people would be inclined to buy it with a full description of the installation procedure.

 

Here it is, powdercoated in the closest color I could match to my XJ's paint. I like how it turned out. Looking forward to getting the exhaust and pre-TB intake set up to go with it. Thanks again XJFiles!