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LB7 GM Duramax Discuss the 1st Generation Duramax here

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Old 06-22-2017, 09:17 AM   #1
OBXdieselAddict
 
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So this little guy sprung an oil leak yesterday..what is it lol

So do any of my more mechanically inclined CompD peeps happen to know what this sensor is?

I walked out to my truck for lunch yesterday and saw a little spot of oil under it. Got pretty nervous seeing oil on the side of the front dif and on the side of the motor so I grabbed a can of brake cleaner after work and cleaned everything up under it last night and crawled around under it with a flash light for about 15 minutes and finally found this little guy. It will only leak when the trucks running and has pressure. Laying in front of the drivers side tire looking up its about halfway up the front side of the motor. I don't think replacing it will be that hard other then the fact I don't know what it is haha

I was pretty happy when I found the leak and realized it looked like a "cheap fix" being its a little plastic guy.
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Old 06-22-2017, 09:37 AM   #2
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Oil pressure sending unit.
 
Old 06-22-2017, 10:47 AM   #3
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Quote:
Originally Posted by Phooker View Post
Oil pressure sending unit.
Thanks!
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IdahoRob, Burkett Racing Heads, ARP, LDS SAC 65%'s, Bullseye TCT S475 single, PRO FAB Spaghetti Headers, ATS stage 5 billet input and output's
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Old 06-23-2017, 12:49 PM   #4
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Quote:
Originally Posted by Phooker View Post
Oil pressure sending unit.
Pain in the but getting up in to it but got it fixed. At $22 I'm not complaining. Thanks for the help!
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IdahoRob, Burkett Racing Heads, ARP, LDS SAC 65%'s, Bullseye TCT S475 single, PRO FAB Spaghetti Headers, ATS stage 5 billet input and output's
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Old 06-23-2017, 03:16 PM   #5
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Pain in the but getting up in to it but got it fixed. At $22 I'm not complaining. Thanks for the help!
No problem!
 
Old 06-23-2017, 03:28 PM   #6
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Quote:
Originally Posted by OBXdieselAddict View Post
Pain in the but getting up in to it but got it fixed. At $22 I'm not complaining. Thanks for the help!
did you buy the right socket for it, or just use channellocks? I know HF sells the 7pc sensor sock set for like 30-40 bucks.

EDIT:... Oxygen Sensor and Diesel Injection Socket Set

Last edited by Exodus; 06-23-2017 at 03:29 PM.
 
Old 06-30-2017, 10:23 AM   #7
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did you buy the right socket for it, or just use channellocks? I know HF sells the 7pc sensor sock set for like 30-40 bucks.

EDIT:... Oxygen Sensor and Diesel Injection Socket Set
That's a pretty cool set! I was puzzled for a long time trying to figure out why I couldn't find a size to fit lol I did end up using channel locks haha

Little guy was a pain in the but to get too
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