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Unread 06-12-2010, 08:49 PM   #1
hyer717
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2004 WJ 
 
Join Date: Jun 2010
Location: Iowa City, IA
Posts: 16
Just picked up a 2004 GC Overland!

Just picked up my first Jeep! So far I've changed all of the fluids (engine, tranny, transfer case, differentials) and replaced the pinion seals front and rear. It was a lot of work but I knew about the seals before I bought it. I'm still trying to work out an A/C problem as it blows pretty warm. I took it to a mechanic who measured the high and low side pressures for me (175 high and 8 low) and told me it needed an expansion valve. Anyone have any experience with A/C and expansion valves?

Some pictures of my new ride after a good cleaning!









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Unread 06-12-2010, 09:55 PM   #2
straty1987
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welcome and you have a nice and clean jeep
looks like you have the fully loaded version minus a few things.

hope you used the fluid from the dealer on you TC sicne oyu have a 247

how was doing the pinion seals front and rear?
i have to get to my front at some point
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Unread 06-12-2010, 10:37 PM   #3
markywmson
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2001 WJ 
 
Join Date: Mar 2007
Location: Bristol, CT
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And you got the RB1 with it! Very nice score. Love it!!
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Unread 06-13-2010, 04:55 AM   #4
hammerz71
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2002 WJ 
 
Join Date: Nov 2007
Location: S. Georgia/N. Florida
Posts: 1,217
NICE!!!

You'll love it. Other than the blend doors (lost a weekend to that repair) and a window motor, I've never had any issues with mine in the four years I've had it...
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2002 Jeep Grand Cherokee Overland
Old Man Emu HD coils, 265/65/17 Nitto Terra Grapplers, Warn M8000, home made light bar, Cepek 130 watt lights, Hella 500s

CURRENTLY REBUILDING THE 4.7 HO ENGINE
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Unread 06-13-2010, 06:31 AM   #5
xjokee
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Nice ride! I just ordered that valve from Rock Auto. $21 bucks give or take and will be replacing it this week. I have a thread rolling as we speak and have a q or two about the install myself. It seems pretty straight-forward.
Mike
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Unread 06-13-2010, 09:11 AM   #6
TX-WJ
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2004 WJ 
 
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Location: San Antonio, TX
Posts: 915
Beautiful Jeep, welcome to JF .
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David.

2004 WJ Ltd. (steel blue pearlcoat)
4.7, 242 HD swap, 6" Clayton's, 35" BFG KM2s, F/R chromo'd JK Rubi D44s
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Unread 06-13-2010, 10:28 AM   #7
psyviperx
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2004 WJ 
 
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Location: Summerville, SC
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Rb1?

567890
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04 Overland |Stock
(for the wife)

97 Laredo I6 2WD | 2"BB up front | F>R Swap
(sold to uncle)

I'm holding out for a 5.9...
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Unread 06-13-2010, 12:05 PM   #8
straty1987
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Quote:
Originally Posted by psyviperx View Post
Rb1?

567890
lol

let him enjoy the new jeep
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Unread 06-13-2010, 03:45 PM   #9
KDOG2008
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2004 WJ 
 
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Gorgeous Jeep. Let the modding begin...
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Unread 06-13-2010, 04:41 PM   #10
phitmein
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The RB1 is a single unit in-dash AM/FM/CD/Navigation Radio.
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Unread 06-13-2010, 04:46 PM   #11
SILASPRIT
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It sounds like the pressure in the system is a little low. I would try charging the system with a can of refrigerant before replacing the expansion valve. Your low side pressure should be around 30-50psi and the high side should be around 2.5 times the temperature of the outside air. For example, if it is 100 degrees out your high side should read about 250psi. By adding a can, you will more then likely fix your problem.
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RC Front ADJ. Trackbar - IRO Rear ADJ. Trackbar - Rusty's Lower ADJ. CA's - Front tow hooks - Rear OE Hitch - T-Case Skid -
Gas Tank Skid - Bilstein 5125's - 31" MTR's - Magnaflow SS Muffler - 1.25" Wheel Spacers - Custom Rock Sliders - Cobra 19 DXIV


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Unread 06-13-2010, 06:38 PM   #12
tlsmith22
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A can of freon make take care it but your pressures are almost identical to mine when I added a can recently. Once I added it, it stopped my expansion valve up. The compressor would only run about 5 seconds every minutes because it was stopped up. I think I got some bad freon or it had moisture that went to the EV. Anyways, I replaced it, pulled the system down for 30-40 minutes and added 1 can of oil and 2 cans of freon(27 ozs) and it was good to go. So dont take the EV back just yet.
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Unread 06-13-2010, 07:32 PM   #13
SILASPRIT
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I agree. Just to clarify, this is what I said.

"I would try charging the system with a can of refrigerant before replacing the expansion valve."
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-SOLD-
1997 Grand Cherokee 5.2 Limited - D44a Trussed 4.10 Gears - HP30 4.10 Gears - NP242 - IRO HnT - IRO Custom Drive Shaft - 4.5" lift - JKS Quicker Disconnects -
RC Front ADJ. Trackbar - IRO Rear ADJ. Trackbar - Rusty's Lower ADJ. CA's - Front tow hooks - Rear OE Hitch - T-Case Skid -
Gas Tank Skid - Bilstein 5125's - 31" MTR's - Magnaflow SS Muffler - 1.25" Wheel Spacers - Custom Rock Sliders - Cobra 19 DXIV


I am an Authorized IRO dealer!!
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Unread 06-13-2010, 09:13 PM   #14
hyer717
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Quote:
Originally Posted by straty1987 View Post
welcome and you have a nice and clean jeep
looks like you have the fully loaded version minus a few things.

hope you used the fluid from the dealer on you TC sicne oyu have a 247

how was doing the pinion seals front and rear?
i have to get to my front at some point
Yeah I used the special mopar fluid in the t-case. The pinion seals aren't too bad if you have all of the right tools. I have never done one before but I just followed the instructions in the service manual and marked everything for re-assembly. The seal itself was a PITA to get out once everything was apart, I used a seal puller and a couple of different screwdrivers to work it out of the differential, it was really in there!
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Unread 06-13-2010, 09:24 PM   #15
hyer717
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Quote:
Originally Posted by SILASPRIT View Post
It sounds like the pressure in the system is a little low. I would try charging the system with a can of refrigerant before replacing the expansion valve. Your low side pressure should be around 30-50psi and the high side should be around 2.5 times the temperature of the outside air. For example, if it is 100 degrees out your high side should read about 250psi. By adding a can, you will more then likely fix your problem.
Yeah I tried adding a can and ended up tripping the high side pressure switch in order to get the low side pressure close to 35-40. I had to let some out in order to lower the pressure enough to get the compressor to kick back on and it still wasn't that cold. I might go ahead with the expansion valve replacement tomorrow and see if that fixes the problem.
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