Go Back   Jeep Garage - Jeep Forum > Jeep Platform Discussion > Grand Cherokee - WJ > Tech Tips/DIY/How to

Join Jeep Garage Today
Reply
 
Thread Tools Display Modes
 
  #37  
Old 04-08-2013, 10:32 PM
Member
My Jeep: 2003 4.7L WJ
 
Join Date: Feb 2013
Location: Knoxville, TN
Posts: 47
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 612
mantonas is on a distinguished road
Update and spark plug advice

I thought I would update my progress. I am going forward with the entire drivetrain swap with the wiring harness in place. This past weekend, I disconnected almost everything that needed to be disconnected from the drivetrain, including the driveshafts, the exhaust system, and the front bumper, headlights, and associated paraphernalia. The biggest thing I have left to do is removing the radiator/fan/condenser from the front of the Jeep.

I did discover a minor hiccup: the 03 engine intake manifold has a plastic flange molded into it that retains the throttle cables, whereas the 01 engine that I am putting in it has a steel plate that bolts to the intake manifold that holds the throttle cables. If I can't figure out how to get the throttle cables from the 03 Jeep to mount to the plate from the 01, I will have to swap the intake manifolds.

Also, and I might start a separate thread about this, I want to change the spark plugs while the engine is out, and I'm looking for suggestions. I have heard the iridium spark plugs are the best, but I don't know what brand to buy. I think the OEM is Denso, so I'm leaning that way, but I've also heard NGKs are really good.
__________________

__________________
Reply With Quote
  #38  
Old 04-08-2013, 11:03 PM
Frango100's Avatar
Premium Member

My Jeep: 2004 4.7L WJ
 
Join Date: Dec 2009
Location: Brazil
Posts: 4,807
Thanks: 9
Thanked 75 Times in 70 Posts
Rep Power: 525738
Frango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond repute
Re: Putting 4.7 V8 from 01 GC into 03 GC

Disconnecting the torque converter is very easy. You remove first the structural cover on the bottom side between engine and transmission (6 bolts i believe). Now you look at the rear side of the flex plate where you can remove 1 bolt at a time, which hold the torque converter to the flexplate (total of 4 bolts). You remove the first bolt and then have to rotate the crankshaft to get access to the next bolt.
The lower transmission to engine mounting bolts are easy to remove, but for the upper ones you have to lower the rear side of the engine as far as possible, so that you can get to the upper bolts through the transmission tunnel, on top of the transmission. if you remove the torque converter, you will have to change the torque converter shaft o-ring as well.
Donīt know how long it took for you to take the whole assy out and if it all worked without damaging components/wiring/etc. Taking the T-case off and then the tranny took me at least 6 hours, laying on the ground most part of it.
Attached some pics of the torque converter with the 4 mounting bolt holes and the space above the tranny with the engine aft side lowered as far as possible.
O, and the OEM plugs are champion copper cores. I did run Bosch with no alterations.
Attached Images
File Type: jpg CIMG0003ca.jpg (57.5 KB, 10 views)
File Type: jpg CIMG0298a.jpg (56.8 KB, 9 views)
File Type: jpg CIMG0299a.jpg (67.7 KB, 11 views)
__________________

__________________
Frank

JEEP Grand Cherokee 4.7 Lmtd 2004
HID 8000K in low and fog / Quad Squad member
Monroe Reflex shocks / Pirelli Scorpion ATR 245/65/17 - Transgo reprogramming shiftkit.

VW Beetle 2.0 TSI 2013
My new toy
Reply With Quote
  #39  
Old 04-09-2013, 11:05 PM
Member
My Jeep: 2003 4.7L WJ
 
Join Date: Feb 2013
Location: Knoxville, TN
Posts: 47
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 612
mantonas is on a distinguished road
Re: Putting 4.7 V8 from 01 GC into 03 GC

Your torque converter looks quite beautiful poised on your dining room table next to a platter of fruit. I'm sure your wife was thrilled! (Maybe she hasn't seen this picture, or maybe you don't have a wife, although your dining room table looks too clean for that.)

Actually, it took about 2 hours to get the engine/transmission/transfer case out of the car, but that time was preceded by hours and hours of work disconnecting and unplugging everything, spread over several weekends. I did damage at least one 02 sensor bringing the engine out. I also had to disconnect one end of the track bar to get the engine out, and I had to not only disconnect the motor mounts, but remove the bracket mounted to the body that the motor mount connects to.

Now that I know what I'm doing, I basically whipped through most of the physical disconnections in about 3 hours last weekend. I plan to do very little electrical unplugging this time, because I am going to leave the wiring harness in place. I am so confident of being able to do this relatively quickly that I am planning on yanking out the blown drivetrain assembly and installing the other one on the same day (Saturday April 20th). We'll see how that goes.
__________________
Reply With Quote
  #40  
Old 04-10-2013, 06:59 AM
Frango100's Avatar
Premium Member

My Jeep: 2004 4.7L WJ
 
Join Date: Dec 2009
Location: Brazil
Posts: 4,807
Thanks: 9
Thanked 75 Times in 70 Posts
Rep Power: 525738
Frango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond repute
Re: Putting 4.7 V8 from 01 GC into 03 GC

Yeh, the torque converter is a new (rebuild) one. When i would have put the old one on there, for sure it would have given some fights with my wife.
Didnīt show her this picture as well, just to not awake a sleeping dog.
Good luck with the engine swap.
__________________
Frank

JEEP Grand Cherokee 4.7 Lmtd 2004
HID 8000K in low and fog / Quad Squad member
Monroe Reflex shocks / Pirelli Scorpion ATR 245/65/17 - Transgo reprogramming shiftkit.

VW Beetle 2.0 TSI 2013
My new toy
Reply With Quote
  #41  
Old 04-24-2013, 07:25 PM
Member
My Jeep: 2003 4.7L WJ
 
Join Date: Feb 2013
Location: Knoxville, TN
Posts: 47
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 612
mantonas is on a distinguished road
Re: Putting 4.7 V8 from 01 GC into 03 GC

Ok, so I did the drivetrain swap on Saturday as I had planned. It was not easy: my friend and I pulled out the entire blown drivetrain from the 03, then we did some work on the good 01 engine (replaced spark plugs, camshaft and crankshaft position sensors, and motor mounts). Then we put the 01 wiring harness back onto the 01 engine, and dropped it in.

At the very end, we were plugging all the harness connections back in, and there was one problem. Near the PCM and TCM, there was a female plug attached to the 03 body wiring harness with 4 wires coming out of it. The only remaining plug in the 01 engine wiring harness to match it with was also a female, with only two wires coming out of it. See the pictures below. The left picture shows the 03 body plug on the left and the 01 wiring harness plug on the right. The second picture is the back of the 03 body plug, showing the 4 wires coming out. The third picture is the 01 body plug, showing the 2 wires coming out. It's hard to see in the pictures, but one of the wires in each of the harnesses appears to be the same color (purple with a dark stripe).

So I'm super unhappy with myself for not using the 03 harness. Part of why I did it was that I wanted to preserve the routing of the harness on the blown 03 engine as a reference for when I was hooking up the other harness. Another part was that I was convinced that they were identical, because they were both JTEC and had the same VIN number except for the year and the serial number of the vehicle. I also was thinking that the 03 harness might be in worse shape because it came from a 190,000 plus mile vehicle. I guess I made a bad decision, and now I think I will have to swap harnesses after the engine is in the vehicle, when it's hard.

There's a chance that I can figure out what these wires are for and splice the 03 plug into the 01 harness. All I lack to be able to do that is the knowledge of what those wires do. Can anyone help with this?

If it helps, the plugs had numbers on them, as follows:

01 plug: 07329-C (top row), 2830-36 (bottom row)

03 plug: 07310-F (top row), 3130-53 (bottom row)

The interweb hasn't been of any help with these numbers.
Attached Images
File Type: jpg 2013-04-24_18.52.18.jpg (528.2 KB, 11 views)
File Type: jpg 2013-04-24_18.52.56.jpg (453.6 KB, 9 views)
File Type: jpg 2013-04-24_18.53.14.jpg (511.2 KB, 9 views)
__________________
Reply With Quote
  #42  
Old 04-24-2013, 10:25 PM
Frango100's Avatar
Premium Member

My Jeep: 2004 4.7L WJ
 
Join Date: Dec 2009
Location: Brazil
Posts: 4,807
Thanks: 9
Thanked 75 Times in 70 Posts
Rep Power: 525738
Frango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond repute
Re: Putting 4.7 V8 from 01 GC into 03 GC

I had a look at my jeep when i came home. The connector you are talking about seems to be the C104. There are two types according the wiring schematics, one with two wires (Violet/white stripe? and Violet/orange stripe), which seems to be the one from the 01 harness.
The other one is for a HO engine and has 6 wires, maybe the two extra wires for the knock sensors? Attached some pics of the position and connector pinout. Still looking where those wires are for. Will come back.
Attached Files
File Type: pdf C104.pdf (159.6 KB, 2 views)
File Type: pdf C104-2.pdf (118.6 KB, 1 views)
File Type: pdf C104-3.pdf (47.0 KB, 3 views)
__________________
Frank

JEEP Grand Cherokee 4.7 Lmtd 2004
HID 8000K in low and fog / Quad Squad member
Monroe Reflex shocks / Pirelli Scorpion ATR 245/65/17 - Transgo reprogramming shiftkit.

VW Beetle 2.0 TSI 2013
My new toy
Reply With Quote
  #43  
Old 04-24-2013, 10:57 PM
Frango100's Avatar
Premium Member

My Jeep: 2004 4.7L WJ
 
Join Date: Dec 2009
Location: Brazil
Posts: 4,807
Thanks: 9
Thanked 75 Times in 70 Posts
Rep Power: 525738
Frango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond repute
Re: Putting 4.7 V8 from 01 GC into 03 GC

What i found sofar regarding the C104 with the two wires:
Cavity 1 = wire K200 18 VT/OR (violet/orange stripe). This is voltage supply for the oxygen sensor heaters.
Cavity 2 = wire K6 18 VT/WT (Violet/White stripe). It is also shown as K6 18 VT/BK (violet/Black stripe). This is the 5V supply voltage from the PCM to the AC pressure transducer.

Can you have another look at the wires which exact color code they have?
Just found out that for the C104 with the 6 wires, 4 wires are for the knock sensors. The remaining two are the same as the two wire connector.
So what are those two extra wires on yours doing? I have the manual 99-00 and 01-04 and they are different from each other and i saw that my 04 jeep is also not the same as the schematic
__________________
Frank

JEEP Grand Cherokee 4.7 Lmtd 2004
HID 8000K in low and fog / Quad Squad member
Monroe Reflex shocks / Pirelli Scorpion ATR 245/65/17 - Transgo reprogramming shiftkit.

VW Beetle 2.0 TSI 2013
My new toy
Reply With Quote
  #44  
Old 04-25-2013, 02:23 PM
Member
My Jeep: 2003 4.7L WJ
 
Join Date: Feb 2013
Location: Knoxville, TN
Posts: 47
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 612
mantonas is on a distinguished road
Re: Putting 4.7 V8 from 01 GC into 03 GC

Ok, this is some great information. Here are some more details:

1. The plug that is on the engine harness, from the 01, looks like the C104 plug shown on page 8W-80-11 of what you sent me, the one that is labeled 4.7 L in parentheses. The positions of the wires are as follows:

Position 1: Purple with orange stripe
Position 2: Purple with black stripe.

2. The plug that is on the body harness, on the 03, looks like the C104 plug shown on page 8W-80-12, labeled High Output in parentheses. The positions of the wires are as follows:

Position 2: brown with orange stripe
Position 7: brown with white stripe
Position 8: blue (no stripe)
Position 9: Purple with black stripe (a possible match!)

I'm nearly 100% positive that the 03 did not have a HO engine in it, based on the VIN numbers. Also, although my 03 body has a 10 position plug, like the one that's labeled "High Output" on page 8W-80-12, it only has 4 wires in it, unlike what's shown on page 8W-80-12, which has 6 wires.
__________________
Reply With Quote
  #45  
Old 04-25-2013, 05:58 PM
Frango100's Avatar
Premium Member

My Jeep: 2004 4.7L WJ
 
Join Date: Dec 2009
Location: Brazil
Posts: 4,807
Thanks: 9
Thanked 75 Times in 70 Posts
Rep Power: 525738
Frango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond repute
Re: Putting 4.7 V8 from 01 GC into 03 GC

My 04 WJ with 4.7 also has the 10 pin plug, it has 4 wires on the engine side of the connector, but i believe i saw 8 wires on the body side of it.
The HO engine has 6 wires on the engine side of the connector, but 4 of them are for the two knock sensors. The other two are the violet/orange and the violet/black, so in fact the same two wires as your 01 has.
Lets see if we can find the other two wires in the connector.
__________________
Frank

JEEP Grand Cherokee 4.7 Lmtd 2004
HID 8000K in low and fog / Quad Squad member
Monroe Reflex shocks / Pirelli Scorpion ATR 245/65/17 - Transgo reprogramming shiftkit.

VW Beetle 2.0 TSI 2013
My new toy
Reply With Quote
  #46  
Old 04-25-2013, 07:50 PM
Member
My Jeep: 2003 4.7L WJ
 
Join Date: Feb 2013
Location: Knoxville, TN
Posts: 47
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 612
mantonas is on a distinguished road
Re: Putting 4.7 V8 from 01 GC into 03 GC

I wonder if they're just a couple of extra grounds.
__________________
Reply With Quote
  #47  
Old 04-25-2013, 07:57 PM
Frango100's Avatar
Premium Member

My Jeep: 2004 4.7L WJ
 
Join Date: Dec 2009
Location: Brazil
Posts: 4,807
Thanks: 9
Thanked 75 Times in 70 Posts
Rep Power: 525738
Frango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond repute
Re: Putting 4.7 V8 from 01 GC into 03 GC

Would not expect because of the colour of the wires. Canīt find a wiring schematic for the 2003 only, do you have it?
If you track down the wiring ends of the bundles, do you see the two wires somewhere?
__________________
Frank

JEEP Grand Cherokee 4.7 Lmtd 2004
HID 8000K in low and fog / Quad Squad member
Monroe Reflex shocks / Pirelli Scorpion ATR 245/65/17 - Transgo reprogramming shiftkit.

VW Beetle 2.0 TSI 2013
My new toy
Reply With Quote
  #48  
Old 04-27-2013, 04:52 PM
Member
My Jeep: 2003 4.7L WJ
 
Join Date: Feb 2013
Location: Knoxville, TN
Posts: 47
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 612
mantonas is on a distinguished road
Re: Putting 4.7 V8 from 01 GC into 03 GC

It's raining like crazy here, probably all weekend. I won't be able to get back to this until next weekend.
__________________

__________________
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
putting luggage up on roof DocCat Grand Cherokee - WK2 - 2 07-31-2012 07:50 AM
Putting on the kn kit this weekend Jcronin Engine Performance/Intakes/Exhausts 8 04-17-2012 08:54 AM
putting in my old AVIC d3 and selling the REC conoqmuela Grand Cherokee - WK 2 03-15-2011 08:35 PM
Putting a feeler out.... saleen032 Grand Cherokee - WK 52 02-11-2010 05:39 PM

Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 11:58 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Copyright 2012 - JeepGarage.Org
The Jeep Grand Cherokee Owners Community