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Glow Plugs - Anyone replace one on their CRD?
http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=5&t=38294		 Page 1 of 1
Author:  clday25 [ Tue Dec 16, 2008 8:20 pm ]
Post subject:  Glow Plugs - Anyone replace one on their CRD?
I could use some help. Per the error code (P1263) that my SGII has been showing me and by looking around on the forum, it appears I’ve got a failing glow plug, possibly PG #2. I went ahead and tested the glow plug wire leads and confirmed with an ohmmeter that 3 GP's had low readings of 0.6 to 0.8 with the 4th reading 6.9 (Thanks Ranger1). Concluding that 3 GP's are ok and 1 needs replacement.

Now my question is has anyone replaced a GP themselves? How difficult would it be? Are there any directions or step-by-step guides out there to follow?

I'm not sure what it takes to perform the job correctly and if it’s worth attempting to do
myself. I could go to the steelership, which kinda makes me sick when I think about it, but would rather not.

Any suggestions, pointers or helpful info?
Author:  moto-scoot [ Tue Dec 16, 2008 9:09 pm ]
Post subject: 
get it changed ASAP!!!!!!!!!
if it breaks off in cylinder its head removal time.
#2 is like the easiest to change.
i changed #3 required removing intake elbow.
ITs like if you can see it to pull conector off,then unscrew it.
need a torqe wrench for proper install.
mine was cracked entire length of carbon tip on both sides!!!
Author:  RTStabler51 [ Tue Dec 16, 2008 9:33 pm ]
Post subject: 
FWIW I had 3 out of my 4 replaced under warranty in the first six months...
Author:  moto-scoot [ Tue Dec 16, 2008 11:23 pm ]
Post subject: 
manual says remove rear generator bracket.
torque glow plug to 12-5Nm[110 inch lbs]
Author:  warp2diesel [ Tue Dec 16, 2008 11:39 pm ]
Post subject:  SEGR saved your engine's life
One more thing to motivate me to finish mine and get it installed. Most glow plugs are a pain to get to, but not hard to get out of the head. The OLD VW ones would self destruct with out trashing the engine (they were soft) , but the fast ones took up to 21 seconds for warm up, I like 3 seconds better.
Author:  moto-scoot [ Wed Dec 17, 2008 12:18 am ]
Post subject:  Re: SEGR saved your engine's life
warp2diesel wrote:
One more thing to motivate me to finish mine and get it installed. Most glow plugs are a pain to get to, but not hard to get out of the head. The OLD VW ones would self destruct with out trashing the engine (they were soft) , but the fast ones took up to 21 seconds for warm up, I like 3 seconds better.


Yep just happend to check mine one day while runningORM

Glad I DID!
Author:  CATCRD [ Wed Dec 17, 2008 12:17 pm ]
Post subject:  Re: Glow Plugs - Anyone replace one on their CRD?
clday25 wrote:
I could use some help. Per the error code (P1263) that my SGII has been showing me and by looking around on the forum, it appears I’ve got a failing glow plug, possibly PG #2. I went ahead and tested the glow plug wire leads and confirmed with an ohmmeter that 3 GP's had low readings of 0.6 to 0.8 with the 4th reading 6.9 (Thanks Ranger1). Concluding that 3 GP's are ok and 1 needs replacement.

Now my question is has anyone replaced a GP themselves? How difficult would it be? Are there any directions or step-by-step guides out there to follow?

I'm not sure what it takes to perform the job correctly and if it’s worth attempting to do
myself. I could go to the steelership, which kinda makes me sick when I think about it, but would rather not.

Any suggestions, pointers or helpful info?


They are only like $30 at rockauto.com.

The one at the front of the engine is easy to replace, I've done it twice. About a foot long extension will help. You don't need to remove the alternator or anything else. The back three I think you need to remove things that are in the way, like intake elbow or fuel filter&head. Maybe someone can speak from experience on the back three and offer some pointers.
Author:  Ranger1 [ Wed Dec 17, 2008 12:37 pm ]
Post subject: 
I watched 2 gp's being replaced on mine at 6 months old. Fortunately, #1 and #4 gp's burned out and I saw the tech use an extension on the front gp and a flexible coupler on the rear gp. The center 2 gp's require the removal of the air intake tube for most humans.

I bought a set of spares and notice the design has changed on the ceramic ends from a bullet nose cone shape to a square stick like ceramic end.

The most critical aspect is to follow the instructions on handling of these gp's. Don't touch the ceramic ends as it will cause early burnout failure and don't use them if subjected to shock, as in dropping them even a few inches onto your work tray. The stress to the ceramic tip running at 2000*F just isn't worth a new engine if it causes major breakage in the block and piston area.

All very interesting to me as I watched another tech, fortunately not mine, at a major CRD certified Jeep dealership, take a test lead from the battery to the gp he had removed, then say to his friend, "this one burned out right while I was testing it - musta been bad from the get-go." Yes, that will happen when 12 volts is applied to a 7 volt glow plug. Then later I watched this same tech open 4 new gp's, throw them down on his metal work bench, pick them up one a time and then install them. A couple of them he handled by the ceramic ends. Nothing he did was incorrect by the old 12 volt gp's with the steel tips, but the technology outpaced his knowledge. This was in mid 2005, before the correct handling of ceramic high temperature gp's was well known.

I didn't know about the warnings until I bought mine later, so I think some of these failures are from mishandling by factory workers who were unaware of the touch not, drop not rule.
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