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 Post subject: Re: Glow Plug Inspection, Remove and Replace
PostPosted: Sun Dec 01, 2013 11:03 pm 
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Joined: Thu Nov 24, 2005 6:22 pm
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Location: Oregon, USA
Just found this thread via several layers of searching. I'll have to take advantage of the excellent content shortly: I had to order Etecno plugs after one of mine finally failed at 130k.

Just wanted to publicly thank Squeeto and others for their generous help in posting a play by play like this. Big, big help.

Debating whether or not to pony up for the Samco hoses at the same time now...

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2005 Jeep Liberty CRD
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At 138k, new head & gasket, timing belt, rockers and swearing vocabulary


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 Post subject: Re: Glow Plug Inspection, Remove and Replace
PostPosted: Sat Feb 01, 2014 4:32 pm 
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Joined: Wed Nov 20, 2013 7:37 am
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Location: Pisa, Italy
Just a couple of words of wisdom for the unlucky ones who, like me today, are going to change their glow plugs. My mechanic was able to reach nr.3 just unscrewing the EGR pipe, shifting it backward and reaching back for the glow plug. Pain in the booty, I give you that, but you save a lot of time. Cheers

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JEEP LIBERTY 2007 - 2.8 CRD - 120 KW


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 Post subject: Re: Glow Plug Inspection, Remove and Replace
PostPosted: Sun Feb 02, 2014 3:30 am 
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Joined: Tue Jan 26, 2010 4:26 am
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Location: Hoedspruit , South Africa
FrankCastle wrote:
Just a couple of words of wisdom for the unlucky ones who, like me today, are going to change their glow plugs. My mechanic was able to reach nr.3 just unscrewing the EGR pipe, shifting it backward and reaching back for the glow plug. Pain in the booty, I give you that, but you save a lot of time. Cheers


Does this not only apply to the Export CRDs which have a different EGR setup? :?

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 Post subject: Re: Glow Plug Inspection, Remove and Replace
PostPosted: Mon Feb 17, 2014 4:28 am 
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Location: Pisa, Italy
Nope... It does apply actually. I own an export one indeed.


Sent from my iPhone using Tapatalk

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 Post subject: Re: Glow Plug Inspection, Remove and Replace
PostPosted: Sat Aug 29, 2015 2:36 pm 
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Thanks! this guide was perfect!


Replaced GP #3 (actually, in the process of still)

Pulling the controller to check is a nice trick, saved a lot of hassle. Just be sure to check if the harness is on the right way! (mine was)

Should I be worried about the other three? Usually when one go's, the rest arnt far behind. It's a bit off, as these wernt done too long ago, as the PO has the GDR tune for 5v plugs and new plugs around 50k ago. (I would guess) So thankfull I dont have to deal with the ceramics.


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 Post subject: Re: Glow Plug Inspection, Remove and Replace
PostPosted: Sat Aug 29, 2015 6:57 pm 
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Also:

I did most of this work with a Wera 1/4 kit. It really did make this a bit easier. It allowed me to drop the intake elbow from above with little issue. Highly recommended


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 Post subject: Re: Glow Plug Inspection, Remove and Replace
PostPosted: Sat Jan 07, 2017 6:44 pm 
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Joined: Fri Feb 01, 2013 1:20 am
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Location: Denver, CO
Squeeto wrote:
Good glow plugs are .5 to 1.5 ohms measured cold. The truck will throw trouble codes P1260 to P1267 when the plugs go bad. Typically the bad plug will read in the hundreds of ohms.


I am assuming the last sentence means that if a glow plug is bad, the ohms number will be very high.

I just did this and my readings are: .3, .3, .3, .5

I am under the impression that this means I am getting low voltage, not necessarily that the glow plugs are bad (though they could be).

I'm just trying to make sure my GP's are actually bad before I go through the trouble of removing the EGR and Alternator to replace them.

It seems like I might have a bad glow plug wire harness (not necessarily bad glow plugs)?

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06 CRD Sport (silver), factory skids, Fumoto Valve, DIY cross bars, LT245/75R16, Hayden fan HD clutch, lift pump, ProVent.

05 CRD Limited (black), factory skids, Fumoto Valve, ARP Studs, Hayden HD fan clutch, EGR delete, Seyfert CRD Stage 2, 225/70R16, EGT gauge


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 Post subject: Re: Glow Plug Inspection, Remove and Replace
PostPosted: Wed Jan 11, 2017 7:30 pm 
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Joined: Fri Jun 22, 2007 11:43 am
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Location: Green Cove Springs FL
Low resistance = high current = more heat.

If you are testing just the harness, resistance should be lower than a glow plug.
Maybe the connector isn't tight enough?

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Bought my '05 CRD on June 2nd '07, used with 29,000 miles.
intake elbow and EGR delete. 5 volt bosch glow plugs
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Replaced cylinder head (cracked) at 160,000 miles + ARP studs
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 Post subject: Re: Glow Plug Inspection, Remove and Replace
PostPosted: Sat Jun 24, 2017 8:26 pm 
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Joined: Tue Jan 05, 2016 10:48 pm
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Location: St. Louis
Glow plug #4 doesn't have a plastic cap. I imagine what I see attached is the guts inside the cap, just not sure how to deal with it. I've already changed 1-3.

Don't know if a facebook link will work, but...
https://www.facebook.com/photo.php?fbid ... =3&theater


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 Post subject: Re: Glow Plug Inspection, Remove and Replace
PostPosted: Sat Jun 24, 2017 9:47 pm 
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Location: Oregon Coast Dairy Country. Land of stumps, dumps, and "Liquid Pumps"
Just use a 90 degree pick, and pull opposite the wire attachment. That, or simply remove the glow plug with the wire still attached. Replace the glow plug loom when off.

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'06 Lbrty Sprt CRD 150K

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Weeks Stg1&2 EGRfix
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 Post subject: Re: Glow Plug Inspection, Remove and Replace
PostPosted: Sat Jun 24, 2017 10:58 pm 
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I managed to reach in there with pliers, I'm just concerned about it sitting like that. I was showing P1267 and P163 which prompted me to change them, but I don't know which the problem one(s) were. #1 was covered in sludge on the outside and #4 has that, but the tips all looked the same.


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 Post subject: Re: Glow Plug Inspection, Remove and Replace
PostPosted: Sat Jun 24, 2017 11:45 pm 
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Location: Oregon Coast Dairy Country. Land of stumps, dumps, and "Liquid Pumps"
May as well replace them all, especially if they are the original ceramic type.

http://www.idparts.com/glow-plug-harness-liberty-crd-p-3357.html

That is a new OEM loom. If price is a significant factor, check salvage yards for 05-06 CRDs.

[edit] make sure to get your codes reset. Any codes connected with emissions won't reset themselves.

[edit]
P1263 - glow plug #2 control circuit low
P1267 - glow plug #4 control circuit low

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'06 Lbrty Sprt CRD 150K

Sasquatch
DSS Turbo
CAT-elimntr
Weeks Stg1&2 EGRfix
PV-200
BLING
vent gauges

IDParts
head
cams
rockers
Timing set
ARP studs
eTn1 GX2123 5v GPs

YETI Custom Tune
Flowmaster 8325508
Carter P76611M
GM 12611872
Hayden 2986
GM 15976889
PATC Custom Billet
2010 Ram Hemi Trans
Sonnax 44957
Transgo kit
Cooper 51770


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 Post subject: Re: Glow Plug Inspection, Remove and Replace
PostPosted: Sun Jun 25, 2017 1:01 am 
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Joined: Tue Jan 05, 2016 10:48 pm
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Location: St. Louis
I did change them all. Reading about it I knew I didn't want to get in there more than once. I think someone took the elbow off before and left a couple things loose, possible contributing to the sludge outside #1. I was also missing the 2 bolts behind the elbow, opposite the cable bracket.


I was too pissed by the time I got to anything where pictures would have been useful, but I'll add what I can.
When taking the elbow off of the manifold, I removed the 2 outside screws, the broke the other 2 loose from the bottom. I could then reach around and remove the rear inside one (worried about dropping everything inside the engine bay). From there I turned the elbow backward and off the EGR pipe, and could remove the front inside screw by hand. Getting that one back in to start was a pain, I only dropped it 6-7 times while trying to hold the elbow and line up the first screw and turn without the gasket coming off. Once in, I got them all started from the top, and then torqued back from the bottom. Lining up the extension train is not easy.

I pulled the battery and tray out to get working room. The fuel filter I took the bracket off the rear wall and just shifted it one slot to the right and put a nut back on, that gave me mostly enough room to get around without having to remove any lines.

I have a dewalt right angle adapter as well as a flexible extension. I used both, sometimes together, to get everything past the FCV. Glow plug caps (where they existed) came off easily with combination pliers. No problem removing the plugs themselves once I could get at them (I think 2 owners ago was probably a member here and put stuff on all the things)

I recommend as many pairs of tiny hands as you can legally manage.


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 Post subject: Re: Glow Plug Inspection, Remove and Replace
PostPosted: Sun Jun 25, 2017 3:33 am 
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Location: Oregon Coast Dairy Country. Land of stumps, dumps, and "Liquid Pumps"
I can sympathize with that to an extent, but I had to replace the head, and all that stuff went on during the re-assemblly. No more EGR or FCV in the way.

Honestly, I doubt having the rubber cap/elbow off will pose problems, other than being exposed to splashed water, etc. It's only powered when the glow plugs are, so about a minute during cold startup, tops. The likelihood of anything shorting across it is pretty small.

Putting the manifold - elbow stub on wasn't a problem for me, since the valve cover was off, but I can see how it would be a pain if done in place.

_________________
'06 Lbrty Sprt CRD 150K

Sasquatch
DSS Turbo
CAT-elimntr
Weeks Stg1&2 EGRfix
PV-200
BLING
vent gauges

IDParts
head
cams
rockers
Timing set
ARP studs
eTn1 GX2123 5v GPs

YETI Custom Tune
Flowmaster 8325508
Carter P76611M
GM 12611872
Hayden 2986
GM 15976889
PATC Custom Billet
2010 Ram Hemi Trans
Sonnax 44957
Transgo kit
Cooper 51770


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 Post subject: Re: Glow Plug Inspection, Remove and Replace
PostPosted: Mon Mar 25, 2019 8:04 pm 
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Joined: Wed Feb 06, 2019 1:34 pm
Posts: 4
Thank you to the op and all those who contributed to this thread, I have a code 1267 so will check wiring first but will change all 4 plugs as I have no record of Jeep ever replacing the originals. The dealer replaced plug 3 (5142577AA)* and wire (5142576AA)* per code po673 back in 03/27/06 under warranty, labor time not listed on receipt. Am planning to go with 7 volt as I live down here in Tx.
*part #'s?


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