sleepy_boy1

Hi guys, im planning on putting a 2004 5.3 l59 into my jeep jk, i have bought the engine and it came complete with wiring harness and pcm and accessories.... im going to order a conversion kit that novak-adapt put together for me,,, along with a 4l60e that i will buy locally, this is my first lsx conversion but im learning through you guys,

here are some of the things i have though of:

1 fuel system: walbro 255 intank with corvette filter/regulator
2 oil pan: im thinking camaro oil pan should be good along with windage tray and pickup.
3 dbw or dbc: im still thinking this one... as i dont have TAC or gas pedal...
4 gutting out my wiring harness and olny keeping nessesary wires for cleaner look
5 i want to put that doner cars guage cluster,,,, no idea how i will do this?
6 im still new so i will have loads of questions , just cant think of any right now

any input is very welcomed


here are some pics to get started with

themonkeyman89

iTrader: (2)

I'm planning a 4.8 into a YJ, how are you going to run the walbro 255 intank? I thought it was only an inline pump...?

sleepy_boy1

walbro make intank and inline pumps, and according to my research people prefer to run intank fuel pumps

sleepy_boy1

ok guys , i need osme help ... what are these on the harness

dunes dude

I think your better off with a harness from painless performance saves you alot of headache for the ignition

Where are you from sleepy boy? Im guessing your from uae

sleepy_boy1

wow nice how did you know , yah im from UAE, anyways... i think i can gut the stock harness and keep the wires i need .... shouldnt be too hard

Shon Herron

iTrader: (25)

If you are going to spend the money on a harness, get one from Speartech or Current Performance. but you can use the stock one, its more work but can be done.

sleepy_boy1

im going to most probably do the haarness myself..... im also going to try and modify my current jeep gas pedal(its a dbw on these new jeeps) to work with a cable system... ill take pic of gas pedal within these few day...

with the wiring harness there are still few things i dont understand, what happens if i completly remove the jeep wiring harness?? will i loose all basic functions? like brake lights and wipers and head light or are those things run separetly?

dunes dude

Im from uae too ya i think you can gut out the stock harness but just get a wiring diagram for the donor car and the wrangler JK it will make your work much easier when your gonna connect the lights,ignition,etc , And are you gonna keep the air condition ?

sleepy_boy1

yah i plan on keeping air conditioning, i will get a relocation kit, but thats later, right now i cant wait to start the project, just waiting on novak to ship all my goodies... then the whole thing will come together and loads of pic!!!!

nice you also from UAE.... nice...

poconojoe

iTrader: (43)

The bottom plug go to the tranny, on the pass side

sleepy_boy1

thanks, and will it fit any 4l60e?

poconojoe

iTrader: (43)

I'd stick with the 98 or newer and i think the one newer then 2001 are better.
Pre 96 ones might give you an issues, they used a differant shift control scheme

sleepy_boy1

im planning on using a 2001+ 4l60e... how many connecters from the wiring harness are in the 4l60e? 1 or 2?

poconojoe

iTrader: (43)

A tottla of 3 or 4 depending on what style of shift switch it has
1 or 2 for the shift selector switch
1 for the VSS connector
1 big plug (the one you pictured) for the tranny control
If you're using a 2001 or newer, most likely it will only have one plug for the selector switch, I've never seen the newer trannies with the 2 plug switch. If your harness is set up for the 2 plug switch, you can sither change the plug or the switch. The switch was around $65 last time I need one, so you might be better off finding a plug

sleepy_boy1

im going to take some more pics of my harness tommorow, so i know what goes where.... i think thats the best thing for me to do right now, since im still waiting for novak to ship my stuff to me....

sleepy_boy1

guys, will i be able to fun the walbro 255 intank fuel pump, of the 5.3 wiring harness? are the connectors the same?

Bo185

Your best bet is to remove the JK motor and mark what everything is. You most likely can reuse the JK V6 sensors for things like the oil pressure and water temp etc. To run the Stock JK gauges.
Just bolt them into the 5.3l block with adapters.

Make the 5.3L harness a standalone with its own ECM. You might have to keep the JK computers to run things Like ABS, and the stability and traction control or you will have a light on all the time.

Keep the DBW pick up a 03-06 TAC and petal assy.

The Biggest problem I see the the Jeep electronics and CANN BUSS. I have a Jeep Commander and bought wring diagrams to do a 4x4 swap on it and Jeeps are fully integrated now! And everything is sent to a control module.

So by a set of wring diagrams for the JK and for the 2004 5.3L.

The physical swap is easy its getting the JK stuff to still work with out the Jeep V6.

sleepy_boy1

what if i dont want anything to work... i mean im going to put a ls1 guage cluster and since its an offroad rig i dont mind not having abs and traction control.... all i need is the air conditioning to work....

Bo185

Ah, then just use auto meter gauges they will be more accurate than the stock cluster and easier to swap in and can be made to fit easier.

Not sure on hte JK but what transfer case does it have?