Lml fuel filter plug [Archive] - Duramax Diesels Forum

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Pepepinguo
07-14-2016, 04:06 PM
Hey guys I'm new to the diesel world and I recently changed my fuel filter. Thing is there is a plug up top of the bracket the filter screws onto that is just hanging there.. I have no idea where it goes. And on the bottom of the engine block there is also what appears to be an electrical outlet?? Like an extension cord maybe? Would appreciate any feed back on this since I'm lost on it. Thanks

$chultz38
07-14-2016, 07:45 PM
110 volt plug in for the block heater for winter

NC-smokinlmm
07-14-2016, 08:11 PM
Hanging plug is the wif sensor, (water in fuel). There is a plug that it connects to, the 110 volt plug is for your block heater...

$chultz38
07-14-2016, 09:08 PM
Sorry didn't understand this fully before. On the bottom of the fuel filter there is a sensor that screws into the fuel filter- the wires with the plug in more than likely broke off at some point on a filter change and the plug hanging is where that would plug into.

Pepepinguo
07-15-2016, 03:46 AM
Thanks. Thing is it's at the top of the fuel filter housing. Like a round ish plug. I'll get a pic in a bit. I've looked in there and couldn't find anything. Thanks for your help

830king
07-15-2016, 05:58 AM
The older trucks have a round plug on top the filter housing for a heating element. I thought the lml's didn't have the heater anymore. Can you post a pic? Sure would help to identify.

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830king
07-15-2016, 06:00 AM
Here is what the heater plug looks like. I thought lml's dropped it, maybe the older ones still got it?http://uploads.tapatalk-cdn.com/20160715/7b1dc43ddf1261287e5521a49d8b2755.jpg

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Pepepinguo
07-15-2016, 07:04 AM
Can you post a pic of the plug? It's round. I took a pic but can't figure out how to upload it

Pepepinguo
07-15-2016, 07:05 AM
My truck is a 2011 so it is the first lml. That's what it may be. So it just hangs there?

830king
07-15-2016, 07:25 AM
Can you post a pic of the plug? It's round. I took a pic but can't figure out how to upload it
Post #7 is a pic of the heater plug. I'm not sure how your viewing, but on the tapatalk app is easy to post pics.

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slowlml
07-15-2016, 09:49 AM
My 11 doesn't have that

830king
07-15-2016, 10:31 AM
Well I think op is gonna have to figure out how to get a pic of it up. Hopefully someone can help figure what it is.

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slowlml
07-15-2016, 10:36 AM
Mines just got a bolt there.
Op use photo bucket or similar and if that doesn't work I can give you my number n you can send the picture to me and I'll post it

Pepepinguo
07-15-2016, 06:01 PM
http://uploads.tapatalk-cdn.com/20160716/a8337a1557fd65994a01d1114648c4b1.jpg


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Pepepinguo
07-15-2016, 06:02 PM
Did it show? I downloaded tapatalk


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c20elephant
07-15-2016, 06:20 PM
Water in Fuel sensor plug.?(WIF)
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http://puredieselpower.com/images/detailed/58/12651583.jpg
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http://uploads.tapatalk-cdn.com/20160716/a8337a1557fd65994a01d1114648c4b1.jpg
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830king
07-15-2016, 06:36 PM
Yeah I can see it. That isn't what my filter heater plug looks like, I have no idea.

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Pepepinguo
07-15-2016, 07:47 PM
It's a red and black cable. Looks a little different than that. Wonder what it is. Thanks guys.

c20elephant
07-15-2016, 07:49 PM
Looking at the picture I notice some zip ties, could be something has been removed or the truck has been altered in some way.

slowlml
07-15-2016, 07:57 PM
I'm not sure where it is in the picture but there is a egr plug somewhat close to the filter head. On the other side of the ic pipe towards the back. It could have got there somehow :confused:
I'm bout half lit tho so I'm not sure lol

Pepepinguo
07-16-2016, 03:40 AM
I'm not sure where it is in the picture but there is a egr plug somewhat close to the filter head. On the other side of the ic pipe towards the back. It could have got there somehow :confused:
I'm bout half lit tho so I'm not sure lol

Lol. I gotta look closer I guess. Zip ties are what I used to strap the amp research module down. And there's also a s&b intake there so it may look a bit off.

600+duramax
08-24-2016, 07:57 PM
Que bola acere?

Hoffie
08-25-2016, 07:33 AM
My LML has a black plug with red push tab that goes up front where the intake heater is located. When you disconnect the egr, you have to disconnect 1 - black/red and 1 brown/yellow connection on the passenger side and 1 brown/yellow on the drivers side. The black/red plug is more square shaped, the brown/yellow ones are round.
When I replaced my primer from GM they gave me one that has the heater wiring on it, even though the original one did not have a heater on it. I just zip tied it out of the way.