I am kind of worried about those ceramic glow plugs. Is there any metal tip glow plugs that exists for the CRD? If anybody got the p/n.

Thanks.

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2006 CRD KJ, 245/70R16 A/T KO, GDE eco tune, ARB bull bar, OME lift, AVIC-N4, turbo timer, pulsetech solargizer, Racor CCV3500, Racor 245R122 fuel head, Caterpillar battery, oem light bar, KC lights, HID fog lts, cb, ...

Not available as of yet, if you are worried change the glow plug controller, this seems to be a cause of some of the failures.

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06 LIMITED 100000miles, MAGNAFLOW, HOMEBUILT CCV FILTER, POLAR PAD, 02 AIRBOX, CUMMINS LIFT PUMP, SEGR, PILLAR GAUGE POD, CAT FILTER MONITOR, SPYDER TRAX, ALWAYS A LITTLE TWO STROKE OIL OR BIO, WATER/METH INJECTION

Can anybody tell me if the glow plug controller is somehow linked to the ECU as I'm concerned that my particular problem with my ECU my just get worse and cause other malfunctions before i can afford to replace it

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06 CRD LTD ( Euro )

Yes,

When the ignition (key) switch is placed in the ON
position, a signal is sent from the sensors to the ECM
relaying current engine coolant temperature and ambient
air temperature.
After receiving this signal, the ECM will determine if,
when and for how long of a period the glow plugs
should be activated. This is done before, during and
after the engine is started. Whenever the glow plug
module (2) is activated, it will control the 7 volt high
amperage circuit for the operation of the four glow
plugs.
The Glow Plug lamp is tied to this circuit. Lamp operation
is also controlled by the ECM.
With a cold engine, the glow plug module and glow plugs may be activated for a maximum time of 200 seconds.
Refer to the following Glow Plug Control chart for a temperature/time comparison of the glow plug relay operation.
In this chart, Pre-Heat and Post-Heat times are mentioned. Pre-Heat is the amount of time the glow plug control
circuit is activated when the ignition (key) is switched ON, without the engine running. Post-Heat is the amount of
time the glow plug control circuit is activated after the engine is operated. The Glow Plug lamp will not be activated
during the post-heat cycle.

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06 LIMITED 100000miles, MAGNAFLOW, HOMEBUILT CCV FILTER, POLAR PAD, 02 AIRBOX, CUMMINS LIFT PUMP, SEGR, PILLAR GAUGE POD, CAT FILTER MONITOR, SPYDER TRAX, ALWAYS A LITTLE TWO STROKE OIL OR BIO, WATER/METH INJECTION

On my 06 I always thought my GP duration was too short in the winter. I even asked the dealer to do something about it. It seemed to be a hard cranker in the cold. Is that because the over heating glow plugs were resolved in the 06 build? Well maybe the GDE tune will give better cold starts?

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20 year owner of Libby CRD!
2006 LTD Bright Silver loaded with all the needed mods, CCV intact.
Equipped with HDS thermostat, plenty of heat, faster warm-ups, increased fuel mileage.

...the glow plug indicator should never be on for more than a second (I am guessing). Even when it is cold -26C (-14f) it never seems to stay on for more than 3 to 4 seconds, at that temp the glow plugs will not be apt to over heat and crack. If you will tell us the coldest it ever gets where you are, we can tell you the longest the indicator should ever stay on. When it starts to stay on longer, yank the controller or fuse and order a new one, don't take a chance. That will most likely set off a CEL, but putting up with a CEL is much better than trashing your engine.

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2006 Pearl Green CRD
Magnaflow 2 1/2" Cat Back
KJ Extra Leg Room Brackets, Carter Lift Pump, V6 Airbox, ORM
Fuel cooler, Oil Separator, Progard 7
Gauges EGT Boost Trans Temp Oil Pres, Michelin LXT AT2 245 70 R16
7,000# Draw Tight hitch, PML EX Deep Trans Pan
Centrifuge, SunCoast, Transgo, RAM TCM, InMotion Stage 2
Wife's 99 TDI VW Beetle

The glow plug module is mounted to the inner
fender between the battery and the master cylinder
in the engine compartment.

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06 LIMITED 100000miles, MAGNAFLOW, HOMEBUILT CCV FILTER, POLAR PAD, 02 AIRBOX, CUMMINS LIFT PUMP, SEGR, PILLAR GAUGE POD, CAT FILTER MONITOR, SPYDER TRAX, ALWAYS A LITTLE TWO STROKE OIL OR BIO, WATER/METH INJECTION

Gets between 0 and +10, below zero is rare, and the Jeeps are in an unheated garage. Where abouts is the GP controller located, any pics on this site?

Thanks for all the help, this site is like a CRD rescue kit.

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20 year owner of Libby CRD!
2006 LTD Bright Silver loaded with all the needed mods, CCV intact.
Equipped with HDS thermostat, plenty of heat, faster warm-ups, increased fuel mileage.

Cycle them twice.

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06 LIMITED 100000miles, MAGNAFLOW, HOMEBUILT CCV FILTER, POLAR PAD, 02 AIRBOX, CUMMINS LIFT PUMP, SEGR, PILLAR GAUGE POD, CAT FILTER MONITOR, SPYDER TRAX, ALWAYS A LITTLE TWO STROKE OIL OR BIO, WATER/METH INJECTION

It's a little black box tacked down behind the battery. It's labeled BOSCH.

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05CRD: GDE Hot ECU & TCM tunes, Provent, Cat filter, Facet lift pump, TransGo kit, Florida TC, Samcos, stainless brake lines, HDS thermostat, Renegade light bar,
Bilstein adjustables, Al's Gen 4.5 Arms, 235/85-16 Duratracs, DTT rear, Elocker front, EVIC+TPMS, Turbo timer, McNally pillar gauges, Weeks Stage II kit.

anyone have a part number on the gp controller? is there a way to test it?

If you simply turn the ignition off and back on immedeatly, the light won't illuminate.

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Manure green 2005 CRD sport4x4, GDE Hot tune, Cat Gut, OE skids, Draw tight hitch, Duramax lift pump, 160K on multiple varieties of fuel, XM radio, Escort live with Redline, fog light mod, GPS, Icom IC7000 all band radio call sign KC9QPF, Grabber AT2s on Soft 8s, FIA grill blanket.

Our glow plugs make a significant impact on the effort required to start our engines when they are cold.

That 2-3 seconds is long enough.

On a few occasions when i did not wait for the pre cycle to finish (or barely even start) it took 10-20 seconds of cranking effort to get the engine to turn over. whereas in similar conditions when allowed to cycle normally, it took only 2-4 turns of the crank, about 1 second, witch in comparison to warm weather, is about double the time.

Using the block heater (3+hours) seemed to reduce the glow plug duration to about 1-2 seconds in a condition that otherwise had the pre cycle at around 5 seconds.

These are just my observations. In San Diego I normally never see the glow plug lamp, however in TN while visiting my family in the winter it does get cold. In this case i'm talking about 5 to 30f weather

Been there done that many years ago on an old Ford 7.3 when it had a blown GP. Just does not seem something I should have to do on a 2006 vehicle. It already starts faster in the warm weather with the GDE tune, will see how it goes this winter.

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20 year owner of Libby CRD!
2006 LTD Bright Silver loaded with all the needed mods, CCV intact.
Equipped with HDS thermostat, plenty of heat, faster warm-ups, increased fuel mileage.

Engine coolant temp. as well as outside air temp. deterimine the time the glow plug wait to start lamp is on. these values also determine the pre- heat and post-heat cycle of the glow plug. You cannot change the outside air temp but you can change the engine coolant temp. If you want to go easy on the glow plugs and your engine. plug it in for 2-3 hours when it gets cold. I have gone through 3 severe winters (-40C at times) and as long as the chill is off the block it always starts easy. I also installed a oil pan heater that works in conjunction with the block heater when the weather gets real nasty.

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06 LIMITED 100000miles, MAGNAFLOW, HOMEBUILT CCV FILTER, POLAR PAD, 02 AIRBOX, CUMMINS LIFT PUMP, SEGR, PILLAR GAUGE POD, CAT FILTER MONITOR, SPYDER TRAX, ALWAYS A LITTLE TWO STROKE OIL OR BIO, WATER/METH INJECTION

I can see you needing to go to such measures in Canada, I have not plugged in a diesel in my area since they went from mechanical to electronic, I don't even know if the engine heaters work, they are all virgins.

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20 year owner of Libby CRD!
2006 LTD Bright Silver loaded with all the needed mods, CCV intact.
Equipped with HDS thermostat, plenty of heat, faster warm-ups, increased fuel mileage.

Up here , -40F real temps can be seen in the winter. I'm thinking the block heater will get a workout this season. And some anti-gel too.

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05 KJ - Lt Khaki CRD Sport - w/GDE Eco, Franky II, Al's 4.5 Arms, JK Rubi Moabs, Silent Armors, Spidertrax Adapters, Rola Basket
05 TJ - Silver RME Auto with some Stuff

This is a good post as I've been wondering why my light comes on every time I start the engine regarless of eng temp our outside temp. It can be 100F outside and the engine at operating temp and the light still comes on for 2-3 seconds.

Now that I've read this stuff, I have a feeling I'm abnormal......I mean the GP circuit, not me personally.

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2006 Libery Sport CRD, Lt Kakhi, nicely equipped
*****GDE Hot Tune at 38,879 miles
*****Stock TC.....for the time being!!

Maybe you better replace that controller before it's too late. I live the Houston area, and I can barely see the light flicker.

Dave

I could barly see my glow plug light flicker either for awhile once I realized what light to look for. Mine is only on for a second on most mornings its cooler. so far since I got my jeep its only been in the 40's a few mornings. If it has been in the upper 60's and up mine doesn't light at all. When I know its that warm I have just started to get in and start the engine with out waiting and she fires every time.

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2006 Liberty CRD Limited Deep Beryl Green Metallic Clear coat, Fumoto valve, MH ProVent (removed), GDE Eco tune,
OME 790/948 springs, OME struts, OME N132L shocks, Jeepin by Al A-arms, Hercules Terra Trac AT2 245/75R16
Weeks Stage 1 EGR delete, 5 volt steel glow plugs