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Unread 03-02-2014, 07:28 PM   #1
FU5E
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2006 WK 
 
Join Date: Mar 2014
Location: Howell, MI
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Couple questions??

I am new here and just bought my first jeep 2006 4.7 Laredo 102k seems pretty solid but has a couple things to address, and I have been searching but not quite finding answers that I'm looking for.

Seems I need to do plugs as the mileage is much poorer than others that I've been reading are getting. I assume champion is factory but I've seen others stating they use NGKs (no # posted that I've seen). I prefer NGK but was wondering if there was any specific number others are running (Its bone stock right now)

Also noticed today that the moon roof is leaking , It snowed last night and had about three inches up there. I left later after it started melting and got a wet surprise as I took a corner? The used dealer I bought it from just fixed the drain hose and I was wondering if there is something else common I should look for or take it in for a fix?

- on a side note: looking at the first performance mod which I typically do intake first want to know if there is any real benefit of doing so before installing the exhaust? some cars it does others it seems not really. so far my reading is leading me to Jet chip first but normally I do supporting mods then chip so Im not sure what to order first??

Thanks for the help.

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Unread 03-02-2014, 08:11 PM   #2
caddydaddy
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Usually the drains to the sunroof get plugged up, and then they leak to the interior.
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Unread 03-02-2014, 08:29 PM   #3
0321Nick
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Hey buddy, got the 2006 with 4.7L myself.

Make sure your moonroof is closing all the way, there is a TSB for this if it does not close all the way. Complete steps 7-12.

http://www.wkjeeps.com/TSB/wk_rapid_response_05-027.pdf

As for your truck and that it has 102,000 miles on it. I would do the following as they are cheap(ish), can be done yourself, and you will now know when they were done last.

1. Change Diff Fluids (Front and Rear)
2. Change Transfer Case Fluid
3. Change Tranny Fluid + internal filters
4. Change Oil and Filter (throw synthetic in there, don't worry about high mileage)
5. Change Sparks, use direct factory replacement
6. Check Pads and Discs
7. Change Serpentine Belt, regardless of condition

[All if not most of these items have video rightups in the FAQ stickie in the forum]

As far as performance mods go, Superchips Flashpaq first. Then CAI (intake) and exhaust. Now that it is available, I would go with the AFE Intake over the K&N. I have the K&N, love it, but the AFE is claiming bigger gains and HP and TQ gains don't come easily.

Enjoy it man, your gonna have a lot of fun!
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Unread 03-02-2014, 09:01 PM   #4
FU5E
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cool, that's exactly what I was trying to sort out. thanks 0321Nick for the link on the sunroof, Ill try to recalibrate it tomorrow and contact the dealer on weather the modules been updated before. going to start on the list with spark plugs first and work my way through it.
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Unread 03-02-2014, 09:06 PM   #5
modernblueWK
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Pull each coil one by one. 10 mm nut holding each coil down. Unplug the connector, pull coil, replace plug. Use spark plug boot lube on the coil boots and a dab of anti seize on the plug threads. The coil boots may have "welded" themselves to the spark plugs so try to pull them straight up with a little twist.

You might need a thin wall spark plug socket and a universal +extension to get to all of them.
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Unread 03-02-2014, 09:41 PM   #6
JeepN4KC
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Quote:
Originally Posted by FU5E View Post
I am new here and just bought my first jeep 2006 4.7 Laredo 102k seems pretty solid but has a couple things to address, and I have been searching but not quite finding answers that I'm looking for.

Seems I need to do plugs as the mileage is much poorer than others that I've been reading are getting. I assume champion is factory but I've seen others stating they use NGKs (no # posted that I've seen). I prefer NGK but was wondering if there was any specific number others are running (Its bone stock right now)

Also noticed today that the moon roof is leaking , It snowed last night and had about three inches up there. I left later after it started melting and got a wet surprise as I took a corner? The used dealer I bought it from just fixed the drain hose and I was wondering if there is something else common I should look for or take it in for a fix?

- on a side note: looking at the first performance mod which I typically do intake first want to know if there is any real benefit of doing so before installing the exhaust? some cars it does others it seems not really. so far my reading is leading me to Jet chip first but normally I do supporting mods then chip so Im not sure what to order first??

Thanks for the help.
Go with Champion plugs.

Let everything thaw out before honing in on sunroof drains - they are likely frozen.

Superchip is worth it. If it's me I'd skip the intake and exhaust. Sound cool but under ~3.5K rpms they are not worth it.......and at that rpm you're burning fuel so what's the point? Get a K&N drop in and call it a day.

Welcome to the WK!
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Unread 03-02-2014, 10:01 PM   #7
jeepin_in_a_wk
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i recommend E3 plugs, got em in my 3.7 for about 5k now, only plug I'm buying for it
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Unread 03-02-2014, 11:43 PM   #8
modernblueWK
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Quote:
Originally Posted by jeepin_in_a_wk View Post
i recommend E3 plugs, got em in my 3.7 for about 5k now, only plug I'm buying for it
No..... Get the factory spec plugs only.
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Unread 03-03-2014, 12:35 AM   #9
BoraBora
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Quote:
Originally Posted by JeepN4KC View Post
Go with Champion plugs.

Let everything thaw out before honing in on sunroof drains - they are likely frozen.

Superchip is worth it. If it's me I'd skip the intake and exhaust. Sound cool but under ~3.5K rpms they are not worth it.......and at that rpm you're burning fuel so what's the point? Get a K&N drop in and call it a day.

Welcome to the WK!
^X2....mine froze from snow and cold weather. I thought they clogged...but I haven't had problems since. Just make sure to wipe snow off your roof.
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Unread 03-03-2014, 08:52 AM   #10
caulk04
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E3 plugs are snake oil junk. Remember the split-fire plugs?

I ran NGK OE replacements #6987 in my old 4.7. Never an issue, I liked them alot.
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Unread 03-03-2014, 01:00 PM   #11
0321Nick
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Quote:
Originally Posted by FU5E
cool, that's exactly what I was trying to sort out. thanks 0321Nick for the link on the sunroof, Ill try to recalibrate it tomorrow and contact the dealer on weather the modules been updated before. going to start on the list with spark plugs first and work my way through it.
Go to wkjeeps.com - lots of good info there especially with the maintenance schedules.

Quote:
Originally Posted by caulk04
E3 plugs are snake oil junk. Remember the split-fire plugs? I ran NGK OE replacements #6987 in my old 4.7. Never an issue, I liked them alot.
This is true too, the 4.7L only works well with the Champion replacements.

Be warned, as you dive into these maintenence points, many systems require specific MOPAR replacement fluids and won't last/accept after market fluids. These systems include:
Transfer Case Fluid
Brake Fluid
Power Steering Fluid
Engine Coolant

The systems that will work with after market fluids are:
Front and Rear Diffs
Oil
Transmission Fluid
Washer fluid (haha)
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Unread 03-03-2014, 02:23 PM   #12
caulk04
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Quote:
Originally Posted by 0321Nick View Post
Go to wkjeeps.com - lots of good info there especially with the maintenance schedules.



This is true too, the 4.7L only works well with the Champion replacements.
...
This is untrue. I guarantee it. Popular belief is that the Hemi only likes OE plugs and I went with that convention. Though now that I have done the plugs once and they aren't that bad, I'll try the NGK's that I've had such luck with in the past next time.

I'm not saying the OE Champs are bad, but this guy likes NGK plugs and I've used them in a 4.7 before with good results.
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Unread 03-03-2014, 08:02 PM   #13
10Xk
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I would use caution using specs from wkjeep, the spark plug gap on the 2010 hemi is wrong when compared to the owners manual.

Free owners manual at jeep.com bottom of page, owners/service manuals.
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Unread 03-03-2014, 08:16 PM   #14
0321Nick
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Quote:
Originally Posted by caulk04
This is untrue. I guarantee it. Popular belief is that the Hemi only likes OE plugs and I went with that convention. Though now that I have done the plugs once and they aren't that bad, I'll try the NGK's that I've had such luck with in the past next time. I'm not saying the OE Champs are bad, but this guy likes NGK plugs and I've used them in a 4.7 before with good results.
Interesting. From everything I've read and from other Jeeper's experiences, anything but the champions in the 05/06/07 4.7L caused pre-ignition issues - which I took to heart since the CPU should correct for that automatically.

Quote:
Originally Posted by 10Xk
I would use caution using specs from wkjeep, the spark plug gap on the 2010 hemi is wrong when compared to the owners manual. Free owners manual at jeep.com bottom of page, owners/service manuals.
Sure, double check everything, but my suggestion of wkjeeps was in reference to the original poster having a 2006 4.7L. The site has yet to steer me wrong.
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Unread 03-05-2014, 09:14 PM   #15
FU5E
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I put the factory champion plugs in (they are actually very easy & cheap). The sunroof leak was the tubes as I found they were clogged up with ice, opened up the ends more and I guess Ill have to make sure the roof is cleared off when it snows.

Next it appears is trans filter, lines, and ft crank seal as the lines and seal are leaking.
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