My glow plugs came out very easily with a 3/8 drive ratchet. All the real work was getting in there and then assembling my way back out again.

What's the proper method for bench testing glow plugs? I tried measuring resistance between various points but couldn't get a reading on the new or the old plugs. It seems like I should get some measurable resistance between the end where the wire connects and the threads.

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2006 CRD Limited
SEGR Mod
Saikou Michi Condenser -- Deleted
Samco Hose Kit
Fumoto 102
Etecno1 GX3123 Steel 7V Glow Plugs
GDE FT Eco and Hot Tunes
JBA 4.5 UCAs
OME Lift

You think correct. You should get between 1-2 ohms between the body (threaded part) and where the wire connects. IIRC the new ones I had measured 1.6.

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The original glow plugs were snugged in about like spark plugs. Once they turned with about 5 pounds of push on a 3/8 inch ratchet I used just the extension and socket twisted by fingers to remove them completely. I put the new ones in with plastic hose and snugged them with the ratchet. About 10 pounds of push on the 3/8 inch ratchet. I bout the jeep new so I knew the original plugs had to be ceramic, although I could not tell the ceramic from the Italian metal ones by looking. Once removed I measured the resistance and one was open. I busted the element with pliers and it was ceramic. The ceramic surprised me with how tough it was. Anyway I'm good to go. Waiting for the next issue. So far at 77K my 06 truck has had nearly every issue they talk about on this forum.

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06 Sport Black 89K leather, 2nd gen fuel, eccotune, ehm, fomoco, steiger window fixes, 7v steel glow plugs, new motor mounts.