LS Swap 5.3 4I60e in 04 Jeep LJ.

[UNSTUCK]

So what’s the issue?

 

[mdbs14]

So what’s the issue?

all good, sorted out, got the pigtail and install oil and coolant Sensors.

 

[mdbs14]

So what’s the issue?

all good, sorted out, got the pigtail and install oil and coolant Sensors.

 

[mdbs14]

Need to finish wiring the under the dash wires on my harness. I have 11 wires and have highted the wires I believe I will need.

Will run a relay for the TCC, do I need both #7, and #8 on the harness image below?
Also do I need the speedometer wire #2 on images below?

Got this relay switch at the yard, with 2 relays, can I use it for the TCC and Fan? They 35A

Thanks

 

[glockman]

I used the fan relay in the Jeep under hood fuse panel but you could use this. I don't think you need both pin 7 and 8, just pin 8.

 

[mdbs14]

I used the fan relay in the Jeep under hood fuse panel but you could use this. I don't think you need both pin 7 and 8, just pin 8.

My 04 doesn't have a fan relay under hood panel

 

[glockman]

My 04 doesn't have a fan relay under hood panel

Sorry, I was confusing stuff. I used the Transmission control relay or the rear window defrost relay and relabeled it FAN in my fuse box. I think they were both high enough current to handle the fan. I tried to use OEM wiring and relays as much as possible to keep it clean and easy. Just split the OEM Fuse box and cut the wire below/tied into it with new circuit.

 

[mdbs14]

Sorry, I was confusing stuff. I used the Transmission control relay or the rear window defrost relay and relabeled it FAN in my fuse box. I think they were both high enough current to handle the fan. I tried to use OEM wiring and relays as much as possible to keep it clean and easy. Just split the OEM Fuse box and cut the wire below/tied into it with new circuit.

Nice, I like that. like that. I will look at both the trans and rear window relay.

 

[mdbs14]

Can someone help me locate a 12V key on power source on 04 tj. I am Wiring the Novak tach emulator.

Thanks

 

[mdbs14]

Can someone help me locate a 12V key on power source on 04 tj. I am Wiring the Novak tach emulator.

Thanks

Behind the gloves box, there is a added circuit tap (with two 10amp fuses) into fuse #10 (instrument cluster) that was used for some sort of lighting unit I won't need, can that be used for 12v+ key hot ?

 

[mdbs14]

For the ignition switch wire, I traced the wire from fuse #22 in fuse box in engine bay to ignition switch plug under steering column, found the small red and the big purple n red, both go to the fuse.

which of these two wires should I tap into for the small purple wire off the starter, and the Ignition wire feed from the gm harness under dash wire?

 

[mdbs14]

Help please!! Which of theses ignition wire I need to tap in for the ls starter purple wire?

 

[mdbs14]

HELP PLEASE.

I have everything connected, now when I plug the battery the motor statt to crank, key not even on.

The ignition wire in the harness is connected to the dark blue wire on ignition switch A21, and the starter purple wire is tapped into A2 wire pink/black from the starter fuse in fuse box in engine.

What did I do wrong.

Thanks

 

[mdbs14]

I used the fan relay in the Jeep under hood fuse panel but you could use this. I don't think you need both pin 7 and 8, just pin 8.

I see they are two fan relay, High and Low, which one to use?

 

[glockman]

HELP PLEASE.

I have everything connected, now when I plug the battery the motor statt to crank, key not even on.

The ignition wire in the harness is connected to the dark blue wire on ignition switch A21, and the starter purple wire is tapped into A2 wire pink/black from the starter fuse in fuse box in engine.

What did I do wrong.

Thanks

I would guess you are tying the battery voltage and the ignition on signal to the same pin. Make sure you are connecting to opposite sides of the relay.

I see they are two fan relay, High and Low, which one to use?

It doesn't matter what relay you use, they should both be rated for the same current. If you use a two speed fan you will need two relays. I suggest doing what Unstuck said and using a PWM fan controller if you are using a single speed fan. I am not currently but that is on my short list.

 

[mdbs14]

I would guess you are tying the battery voltage and the ignition on signal to the same pin. Make sure you are connecting to opposite sides of the relay.

It doesn't matter what relay you use, they should both be rated for the same current. If you use a two speed fan you will need two relays. I suggest doing what Unstuck said and using a PWM fan controller if you are using a single speed fan. I am not currently but that is on my short list.

For the purple starter wire, I have connected it to the small yellow wire on the ignition switch. It starts but was looking to run it to a wire inside the engine bay.

 

[glockman]

For the purple starter wire, I have connected it to the small yellow wire on the ignition switch. It starts but was looking to run it to a wire inside the engine bay.

I think that would be D6 on the C107 connector.

 

[mdbs14]

I think that would be D6 on the C107 connector.

But isn't that on the same line as thr A2 wire highted in blue? Which is where I tried to connect it to before and the truck will just run whn connecting battery

 

[UNSTUCK]

Don't run your purple starter solenoid wire to the ignition switch. I’d run it all the way to the output of the starter relay. Or as a minimum connect it to the old starter solenoid wire. Otherwise you’ll burn up your ignition switch.

 

[mdbs14]

Don't run your purple starter solenoid wire to the ignition switch. I’d run it all the way to the output of the starter relay. Or as a minimum connect it to the old starter solenoid wire. Otherwise you’ll burn up your ignition switch.

Ok, so that will be the T40 wire on C104?