How big is the glow plug thread on a Duramax?
Later version: Glow plug thread starts approximately 1.00” (25.000 mm) below hex of plug and is used in 2005–2016 Duramax engines. Of course, knowing the appropriate glow used before repairs speeds up the repair operation. Repair instructions are included with the tooling and should be read and followed before attempting repairs. P5000 Repair Kit
Where is the p0676 glow plug 6 control circuit?
So the check engine light came on and the P0676 code pulls on the CTS2. Truck is bone stock. I pulled and tested #6 glow plug (third back from the front on the drivers side) and it checked good. Cleaned the glow plug, connecting terminal, and nut. Put it back together and it popped the code again. Wondering what the next step to do is.
Can a glow plug be set to ground?
Keep in mind that the glow plug is only part of the circuit and the ENTIRE CIRCUIT must be electrically good. PO676 can set for short to ground or voltage, open or high resistance. If your plug tested to 6 ohms or less, the problem is likely with the circuit, not the plug.
What to do if your glow plug goes bad?
If the resistance is more than 1 ohm, repair the harness. If the resistance is less than 1 ohm, replace the glow plug control module. With the igniting OFF and the affected glow plug disconnected, measure the resistance between the affected glow plug terminal of the glow plug and ground with a DMM for less than 1 ohm.
How to test the glow plug on a Duramax?
Command the glow plugs ON with a scan tool and observe the test lamp. The test lamp should illuminate. If the test lamp does not illuminate, test the affected glow plug harness between the glow plug control module and the glow plug for an open, short to ground or high resistance.
Is there a special ” Broken Glow plug removal kit “?
My second question, is there a special “broken glow plug removal kit” on the market for the 10 x 1.25 glow plugs used in the Duramax? And if yes, has anyone used it with success? Any advice would be much appreciate as I’m trying to avoid a $4K cylinder head removal job. :bawl:
So the check engine light came on and the P0676 code pulls on the CTS2. Truck is bone stock. I pulled and tested #6 glow plug (third back from the front on the drivers side) and it checked good. Cleaned the glow plug, connecting terminal, and nut. Put it back together and it popped the code again. Wondering what the next step to do is.
Is the glow plug still stuck in the cylinder?
Any advice would be much appreciate as I’m trying to avoid a $4K cylinder head removal job. :bawl: The tip of the glow plug is probably still stuck in the threaded part, I doubt it dropped into the cylinder. And then do yourself a favor and buy an air hammer and socket adapter for the rest of the glow plugs. Appreciate the links.