Hemi Swap Complete - 2002 4.7 to 2003 5.7
Captain
Joined: Jan 2010
Posts: 656
Likes: 6
From: South Carolina
Jeep Wrangler + Hemi Motor = Bad@ss Jeep
I hope you enjoy the pride of you're accomplishment as much as I did..Neither insurance companies are going to pay for my truck,or bikes..I didn't have enough insurance and the police officer couldn't say for sure it was her fault..So I'm screwed..
Meanwhile I'm searching for something else to put my Hemi in. I have that Italian sounding disease FUNDS-SA-LOW. I have to look at this truck every time I walk out side, It makes me sick.
I hope you get as much enjoyment out of yours as I did mine , "Only Longer"..
" Good Job", I hope something I posted helped , or saved time money, or something..
Meanwhile I'm searching for something else to put my Hemi in. I have that Italian sounding disease FUNDS-SA-LOW. I have to look at this truck every time I walk out side, It makes me sick.
I hope you get as much enjoyment out of yours as I did mine , "Only Longer"..
" Good Job", I hope something I posted helped , or saved time money, or something..
I was driving some back roads yesterday and noticed a Jeep Wrangler in someones Yard Tires are flat and it looks like someone's been using it to store junk in. . After talking to the owner I ended up buying the Jeep . I'm going to try to get it today.
That's my next project , I'm putting the Hemi from my Quad cab in the Wrangler..I'll post pics and details for the next person.I know this aint no Jeep Forum , but I think it's going to be interesting to see how this Hemi works in a Jeep Wrangler..
Registered User
Joined: Jul 2011
Posts: 17
Likes: 0
this posting was a big help in my 03 4.7 to 03 5.7 swap thanks alot, bbuutt my only problem is my truck is standard and the harness ,tcm, an pcm that came with the hemi is a/t truck wont start HELP PLEASE. I grounded the gr/or wire now my ignition works i have spark, fuel pump kicks on but i think injectors arnt firing. if i put gas in throttlebody truck starts for couple sec. any info is great thanks
Captain
Joined: Jan 2010
Posts: 656
Likes: 6
From: South Carolina
You Grounded the Green and Orange wire ? That could be one of you're problems. The Gr/or There are-3 wires on a 2003 ECM Hemi Harness..
Wire One is Pin#19 (C-3) computer It's the ASD Relay.
Wire Two is Pin#28 (C-3) computer, It's also ASD Relay.
Wire Three is pin#38(C-3) That's the Starter Relay Control.
The starter Relay control, goes to the Starter Relay in the PDC.
The only wires that get grounded on that year are Black and Blue -And -Dark Blue and Black....My ASD Relay was hooked up wrong the first time too. I had the same problem...Look up the wiring diagrams on my thread I think they start on page 10.The Pinout to you're truck is on it too so you can cross referance them..
Wire One is Pin#19 (C-3) computer It's the ASD Relay.
Wire Two is Pin#28 (C-3) computer, It's also ASD Relay.
Wire Three is pin#38(C-3) That's the Starter Relay Control.
The starter Relay control, goes to the Starter Relay in the PDC.
The only wires that get grounded on that year are Black and Blue -And -Dark Blue and Black....My ASD Relay was hooked up wrong the first time too. I had the same problem...Look up the wiring diagrams on my thread I think they start on page 10.The Pinout to you're truck is on it too so you can cross referance them..
Last edited by HemiDak-Quad; Aug 1, 2011 at 02:11 AM.
Captain
Joined: Jan 2010
Posts: 656
Likes: 6
From: South Carolina
You know it ... I will be starting the thread in the next couple days .. It's not going to be easy , As the 1987 Jeep has no fuel injection..But I have a complete Hemi powered truck , So I'll be posting pics and details i soon..
Registered User
Joined: Sep 2011
Posts: 4
Likes: 0
From: Indiana, Pa
hey, thanks for all the info. its helped me out a lot. I want to do a swap on my 06 4.7 w/ 6speed getrag 238. I was hoping someone could help me out with what I need for pcm/ tcm. or will 03 5.7 still be the way to go?
Thread Starter
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Veteran
Joined: Oct 2010
Posts: 327
Likes: 2
From: MD
Hmm, I think you're probably better off with a 2005 (pcm only, tcm was only used in 03) as you'll have some wiring to do. I'm not familiar with all of the changes they did in 2006.
