p1261 and pinging sound

carbcoma · **Joined:** Sat Oct 01, 2016 9:48 pm **Posts:** 86

Hi I noticed i have p1261, I think I have ceramic glow plugs. I also noticed i have a pinging noise coming from the engine. Does this sound like a broken glow plug? what is my best course of action?

WWDiesel · **Posted:** Sun Nov 20, 2016 2:19 pm

carbcoma wrote:

Hi I noticed i have p1261, I think I have ceramic glow plugs. I also noticed i have a pinging noise coming from the engine. Does this sound like a broken glow plug? what is my best course of action?

First; you need to pull and inspect the glow plugs to see if any tips that may have broken off; suspect is no. 1 with the p1261 DTC. :!:

This is a good write up by Squeeto on how to test and / or R&R the glow plugs: > viewtopic.php?f=98&t=70159

Luckily for you no. 1 is the easiest to R&R, but if it has the OEM ceramics, they all need to be changed out to prevent future failure and possible catastrophic internal engine damage which may have already incurred on cylinder no. 1 if it has broken off and been ingested by the engine. :roll:

The ceramic tips on the glow plugs are made out of some super hard material:
Hardness of alumina ceramics is nearly three times that of stainless steel; silicon carbide is more than four times harder than stainless steel.
If a piece of the ceramic happens to fall into the combustion chamber, it can damage the valves, the injector, the cylinder head, the top of the piston, or cause one of the rocker arms to break, or all of the above! :grim:

carbcoma · **Joined:** Sat Oct 01, 2016 9:48 pm **Posts:** 86

Hi Thanks for your advice.
I removed this glow plug and noticed it is a etecno 7v. I will replace it and see if the code is cleared.

rankom · **Posted:** Mon Nov 28, 2016 9:29 pm

my e technos GP , love them lol they're so tough they don't brake there tips so that is cool , 1st set in 2014 bad batch , burnt out one buy one , call id parts order 2 more burn up again , call and out of stock , wait till got second batch , order double set so i can have a spare set , install them perfect CEL is gone and 4 IN my tool box spare and CRD in the garage ,refuses to go out it is to cold , i don't blame the poor thing,,,,

Mountainman · **Posted:** Mon Nov 28, 2016 10:58 pm

Your pinging sound is probably the normal diesel harmonics metallic tick. It's worse on some, but you could also be hearing air in fuel, which is super common. There are other causes also, but uncommon

carbcoma · **Joined:** Sat Oct 01, 2016 9:48 pm **Posts:** 86

I replaced this plug (#1) and the code went away. Yes I believe the pinging sound is air in fuel. I'm making a new post about that. Thanks again

p1261 and pinging sound

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