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 Post subject: Re: Glow Plug Inspection, Remove and Replace
PostPosted: Mon Feb 18, 2013 10:54 am 
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Joined: Fri Nov 27, 2009 2:43 pm
Posts: 41
Location: Regina, Saskatchewan Canada
KJJET - the only thing I've done so far is the EHM...I used a clear hose and its crazy how sooty and oily it is.

I'll be doing the GDE tune for sure but not until spring. Too much snow on the ground still to be stuck without the Jeep.

Someone is telling me to start using Redline Diesel fuel catalyst...not sure what it does yet but they think it will start cleaning things up for me. Any thoughts?

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2006 Liberty Sport CRD - 84000 kms, EHM, Samco turbo hoses, Fumuto drain valve, Mobil 1 oil filter, GDE Eco Tune (Next: new fuel filter head is waiting to be installed)
SOLD - 1994 Cherokee Sport - Throttle body spacer, K & N cold air intake system
WRECKED - 1986 Cherokee 2.5 L - miss this old XJ


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 Post subject: Re: Glow Plug Inspection, Remove and Replace
PostPosted: Mon Feb 18, 2013 12:20 pm 
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LOST Junkie

Joined: Tue May 29, 2012 8:45 am
Posts: 908
Location: Western, PA
I don't have any history with Redline Diesel fuel catalyst. It may help? But you will still be putting the bad stuff in your engine that damages vital parts such as Rockers and bearings. Get a GDE tune ASAP for sure.

Good luck with your Jeep CRD!

_________________
05 Liberty CRD Sport with Leather 115k
GDE ECO, No EGR, no FCV, (system gone)
Oil Drain plug P/N 090-039
K&N Air Filter, 2nd gen Fuel filter head
NEW Rockers & lifters
Mobil 1 0w-40
Stant 13519 195 deg inline Thermostat.
0 281 002 845 MAP
Etecno GX3123 7v Glow Plugs
Advance Gold 800CCA Battery
Traded it for a Quality VW TDI


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 Post subject: Re: Glow Plug Inspection, Remove and Replace
PostPosted: Sun Mar 24, 2013 4:13 pm 
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Joined: Mon Feb 14, 2011 12:47 am
Posts: 77
Location: Riverside,Ca.
I will add to this that if you take the battery out and the fuel filter, you have a lot of room to get in and do the work. I did not need the 24 inches of extensions to get the the elbow off. I was able to use a 6 inch extension and just work it up behind the elbow to get off the two screws that are behind it. With everything out of the way, It was easier for me to just use my hands to get in and remove the glow plug caps, the 90 degree pliers were not working for me. Having a flashlight will help too.Just keep the computer on and the page saved and you have a great resource. I will also add in that it might help if you take the skid plate off, this way if you drop a screw or several, they are just waiting for you on the ground.


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 Post subject: Re: Glow Plug Inspection, Remove and Replace
PostPosted: Tue May 14, 2013 8:25 am 
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Joined: Sat May 11, 2013 9:55 am
Posts: 18
Location: Surrey, England, UK
Squeeto wrote:
Glow Plug Inspection, Remove and Replace

Inspection:
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.


Great write up with clear photos, thanks.

I'm planning on diagnosing which (if not all) of my 2002 2.5 CRD glow plugs is/are breaking down on start-up and then changing it (or them) using your reference material. Do the ohms figures quoted above apply to the 2002 model?

If not, do you happen know the correct reading?

Cheers
Andrew

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2002 Cherokee (Liberty) 2.5 CRD Ltd in need of a little TLC!

........if it ain't broke, then fiddle with it until it is.............


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 Post subject: Re: Glow Plug Inspection, Remove and Replace
PostPosted: Tue May 14, 2013 10:12 am 
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LOST Junkie
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Joined: Mon Oct 20, 2008 12:24 pm
Posts: 977
Location: Victoria, Canada
Glow plugs, like light bulbs, usually are either good or bad. There is very little chance of in-between.
So for all glow plugs, any vehicle, they are good if they measure less than a few (say 5) ohms and bad if they measure in the hundreds or more.


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 Post subject: Re: Glow Plug Inspection, Remove and Replace
PostPosted: Tue May 14, 2013 2:44 pm 
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Joined: Sat May 11, 2013 9:55 am
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Location: Surrey, England, UK
Many thanks for that - so that's my next job!

Cheers!

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2002 Cherokee (Liberty) 2.5 CRD Ltd in need of a little TLC!

........if it ain't broke, then fiddle with it until it is.............


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 Post subject: Re: Glow Plug Inspection, Remove and Replace
PostPosted: Wed May 15, 2013 3:32 am 
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Joined: Tue Jan 26, 2010 4:26 am
Posts: 844
Location: Hoedspruit , South Africa
Andrew_S wrote:
Squeeto wrote:
Glow Plug Inspection, Remove and Replace

Inspection:
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.


Great write up with clear photos, thanks.

I'm planning on diagnosing which (if not all) of my 2002 2.5 CRD glow plugs is/are breaking down on start-up and then changing it (or them) using your reference material. Do the ohms figures quoted above apply to the 2002 model?

If not, do you happen know the correct reading?

Cheers
Andrew


Bear in mind that your 2002 2.5 CRd has 11 volt glow plugs .....same as mine....so you need to get the correct ones from the Jeep Dealer as the 7 volt Ecotec ones do not apply to us.

I could try measure the resistance of my glow plugs for you but even with my high quality Fluke Digital meter it is difficult to try and measure such a low resistance....expect to read almost a short if the glow plug is OK or an open circuit if the glow plug is completely blown.

The glow plugs on our 2.5 CRDs are powered directly by the two large relays sitting in the relay compartment under the hood.....you may want to replace those two relays or open them up and clean the contacts.....lots of Amperes go through those contacts. The ECU on our CRDs does not monitor the condition of the glow plugs as is done on the newer CRD models. :wink:

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2002 Export CRD 2.5 Sport


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 Post subject: Re: Glow Plug Inspection, Remove and Replace
PostPosted: Wed May 15, 2013 8:10 am 
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Joined: Sat May 11, 2013 9:55 am
Posts: 18
Location: Surrey, England, UK
Thanks for the useful info - new to these critters, so all help apreciated!

Cheers
Andrew

_________________
2002 Cherokee (Liberty) 2.5 CRD Ltd in need of a little TLC!

........if it ain't broke, then fiddle with it until it is.............


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 Post subject: Re: Glow Plug Inspection, Remove and Replace
PostPosted: Sun Aug 04, 2013 4:34 pm 
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Joined: Wed Nov 08, 2006 11:32 pm
Posts: 321
Location: saint diego, ca
Great write up. My only issue is I am not seeing connectors to the glow plugs like you have in the picture. Does anybody have a picture with the exact glow plug location circled that they could post?

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2005 Liberty CRD, 245/75R16, OME CRD Springs front, OME HD rear


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 Post subject: Re: Glow Plug Inspection, Remove and Replace
PostPosted: Wed Aug 14, 2013 7:30 pm 
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Joined: Mon Oct 20, 2008 12:24 pm
Posts: 977
Location: Victoria, Canada
JDaPP wrote:
Great write up. My only issue is I am not seeing connectors to the glow plugs like you have in the picture. Does anybody have a picture with the exact glow plug location circled that they could post?

Papaindigo has some engine pictures that may help, here:
viewtopic.php?f=98&t=74594

But the glow plugs are hard to see without removing the parts in the write-up.


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 Post subject: Re: Glow Plug Inspection, Remove and Replace
PostPosted: Wed Aug 14, 2013 8:59 pm 
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Joined: Wed Nov 08, 2006 11:32 pm
Posts: 321
Location: saint diego, ca
I finally found them. I will take pictures while I have it apart. Thanks for the help.

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2005 Liberty CRD, 245/75R16, OME CRD Springs front, OME HD rear


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 Post subject: Re: Glow Plug Inspection, Remove and Replace
PostPosted: Thu Aug 29, 2013 2:38 pm 
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Joined: Fri Mar 05, 2010 11:30 pm
Posts: 392
Location: Utah
Squeeto,

I followed your procedure pretty closely to put the Etecnos in this week. I did have to borrow a younger pair of hands to get the intake elbow and the rest bolted back together.

New Etecnos read a uniform .6 ohm.

If I were to do this again, I'd order an 'O' ring. Price is $2.70 USD and takes three days to get here, four if they mistakenly send it to Boise first. I re-used one gasket and the O ring. Red RTV sealed everything up nicely.

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'05 Sport CRD 107k miles. NOBODY knows everything.


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 Post subject: Re: Glow Plug Inspection, Remove and Replace
PostPosted: Fri Oct 11, 2013 8:45 pm 
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Joined: Sun Jul 20, 2008 4:44 pm
Posts: 36
Location: Alaska
I need to get all 4 glow plugs replaced. Already have the plugs. Curious to know what the manual says for shop time on how long this should take? Anyone have this done and willing to share how much it cost in labor? Thanks!

_________________
2006 Green CRD Limited -- 32,000 miles -- Predator Tune -- K&M Air Filter --
(2005 Grey CRD Sport) Sister's
(2006 Gold CRD Limited) Dad's
(1997 GMC 2500 w/ GFS WVO)
(2007 Arctic Cat Diesel ATV)


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 Post subject: Re: Glow Plug Inspection, Remove and Replace
PostPosted: Sun Oct 13, 2013 9:53 pm 
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Joined: Tue May 29, 2012 8:45 am
Posts: 908
Location: Western, PA
Peregrine wrote:
I need to get all 4 glow plugs replaced. Already have the plugs. Curious to know what the manual says for shop time on how long this should take? Anyone have this done and willing to share how much it cost in labor? Thanks!



First thing.

1. What plugs did you get? 5v or 7v?

_________________
05 Liberty CRD Sport with Leather 115k
GDE ECO, No EGR, no FCV, (system gone)
Oil Drain plug P/N 090-039
K&N Air Filter, 2nd gen Fuel filter head
NEW Rockers & lifters
Mobil 1 0w-40
Stant 13519 195 deg inline Thermostat.
0 281 002 845 MAP
Etecno GX3123 7v Glow Plugs
Advance Gold 800CCA Battery
Traded it for a Quality VW TDI


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 Post subject: Re: Glow Plug Inspection, Remove and Replace
PostPosted: Sun Oct 13, 2013 10:30 pm 
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Joined: Sun Jul 20, 2008 4:44 pm
Posts: 36
Location: Alaska
I got the Italian plugs, 7V Drop in replacements http://www.dieselglowplug.com/gx3123-di ... -2032.html

_________________
2006 Green CRD Limited -- 32,000 miles -- Predator Tune -- K&M Air Filter --
(2005 Grey CRD Sport) Sister's
(2006 Gold CRD Limited) Dad's
(1997 GMC 2500 w/ GFS WVO)
(2007 Arctic Cat Diesel ATV)


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 Post subject: Re: Glow Plug Inspection, Remove and Replace
PostPosted: Mon Oct 14, 2013 10:27 pm 
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Joined: Tue May 29, 2012 8:45 am
Posts: 908
Location: Western, PA
Ok good!

With the 7v drop in's, you do just that just change them.

1. Remove the battery
2. Remove the fuel filter housing.
3. Remove the alternator and holding bracket.
4. Remove the Intake elbow. (tough part)
The Glow plugs are located under the intake elbow.
5. Spray the old Glow plugs with penetrating oil.
6. Using a deep socket and long extension remove the plugs.
7. Apply some anti-seize to the threads of each new plug.
8. install.
9. Reinstall everything in reverse.

How long will it take? Well it took me 3 hours. But I have had all of these items out before. Experience pays off.
If you can get someone to do it under 6 hours? That would be good.

Best of luck
KJJET

_________________
05 Liberty CRD Sport with Leather 115k
GDE ECO, No EGR, no FCV, (system gone)
Oil Drain plug P/N 090-039
K&N Air Filter, 2nd gen Fuel filter head
NEW Rockers & lifters
Mobil 1 0w-40
Stant 13519 195 deg inline Thermostat.
0 281 002 845 MAP
Etecno GX3123 7v Glow Plugs
Advance Gold 800CCA Battery
Traded it for a Quality VW TDI


Last edited by kjjet on Wed Oct 16, 2013 7:23 pm, edited 1 time in total.

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 Post subject: Re: Glow Plug Inspection, Remove and Replace
PostPosted: Tue Oct 15, 2013 9:20 pm 
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Posts: 97
Location: Cleveland, OH
I think I have read book time is 5 hours.

I did mine recently, and having never done this on the Jeep, spent a fair bit of time figuring out how to attack the various fasteners that need to come off/ on. Even with that, I was tracking to R&R in just about 5 hours. That is until I got to the stuck #4 plug that took about 5 hours alone to get out in one piece.

With one round of experience, the 3 hour figure doesn't seem unreasonable, nor does the 6 hours of paid shop time.

_________________
2006 Liberty CRD - the commuter. GDE Full Tq Eco, Samcos, etecno GPs

2006 GMC Sierra Duramax/Allison - the toy
RIP - 1995 Tahoe 6.5 TD
1990 JD 332, yep, the mower is a diesel too


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 Post subject: Re: Glow Plug Inspection, Remove and Replace
PostPosted: Thu Oct 17, 2013 2:06 pm 
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Joined: Sun Jul 20, 2008 4:44 pm
Posts: 36
Location: Alaska
Thank you all very much for your input! I have an appointment with a mechanic today in Sante Fe, NM that was recommended by another LOST member. On the phone they said $550 for labor and parts, which sounded pretty good to me, but when I mentioned I already had the glow plugs they were not sure about a rate quote, so I'll find out in a few hours and post back with results.

_________________
2006 Green CRD Limited -- 32,000 miles -- Predator Tune -- K&M Air Filter --
(2005 Grey CRD Sport) Sister's
(2006 Gold CRD Limited) Dad's
(1997 GMC 2500 w/ GFS WVO)
(2007 Arctic Cat Diesel ATV)


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 Post subject: Re: Glow Plug Inspection, Remove and Replace
PostPosted: Fri Nov 22, 2013 2:00 pm 
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Joined: Wed Nov 20, 2013 7:37 am
Posts: 36
Location: Pisa, Italy
Awesome write up! I am facing the replacement of the glow plug nr.4 and, considering that I do not have all the tools with me, I asked the dealer. Came out with a 200$ glow plug and 2 hrs labour. Fortunately internet comes always handy in this cases. I am going to buy a glow plug from ETECNO, which is fairly close to me (I live in Tuscany, Italy) and replace it myself with this guide. I just have to figure out if there's a 5v or a 7v in there. I will let you guys know how it goes.

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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: Thu Nov 28, 2013 2:46 am 
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Joined: Wed Nov 20, 2013 7:37 am
Posts: 36
Location: Pisa, Italy
Dear all, thanks for your awesome support. Here are some info that could be useful. As Hexus pointed out, Jeep Liberty 2007 2.8L CRD 120kw came out with a 5v glow plug system. Yesterday I had my 4th cylinder glow plug changed (time=15 min, cost=a hand shake) and now it works just fine. The part number for the original glow plugs is 68020557AA, just in case you are looking for the BOSCH plugs. I do recommend the italians ETECNO Gx2123 by the way, they are totally metallic, no ceramic parts, and they fit just fine. I think I'll change the remaining plugs when I'll have some more time. Cheers

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JEEP LIBERTY 2007 - 2.8 CRD - 120 KW


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