5.3 oil leak

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#11

06-02-2011, 10:32 AM

Jester_20

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haven't had any leaks (gulp) yet . . . the only time i've found puddle was on the power steering recall, and it was all taken care of within 2 days. I am however in the middle of a oil consumption test for the burning oil problem on the ls4. . . . hoping i fail lol

#12

06-02-2011, 10:50 AM

RickAKATed10

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That looks more electrical/sensor-ish to me, but I honestly have no idea what it is.

#13

06-02-2011, 11:43 AM

xxtheshockerxx

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Quote:

Originally Posted by RickAKATed10

That looks more electrical/sensor-ish to me, but I honestly have no idea what it is.

it has a bolt goin somewhere into the pan...not sure how far but my car isnt leaking from anywhere major so that is good. the pan gasket is good. just wondering about this black piece because that seems like where the oil is coming from, either that or i have a bad seal on my drainplug and it is blowing back when i drive which is completely possible

#14

06-02-2011, 11:11 PM

xxtheshockerxx

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found a pretty good site. check it out if you ever have a question for identifying parts on your motor/trans

W ENGINE ASM-5.3L V8 PART 4 OIL PUMP, PAN AND RELATED PARTS (LS4/5.3C); WN19 ENGINE ASM-5.3L V8 PART 4 OIL PUMP, PAN AND RELATED PARTS (LS4/5.3C);. Fits: Allure, Grand , Impala, LaCrosse, Monte Carlo | Nalley Buick GMC Brunswick

the part i am talkin about is #727 engine oil level sensor

#15

06-03-2011, 09:04 AM

RickAKATed10

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Hey, I was right! It's a sensor.

#16

06-03-2011, 11:06 AM

Slugger088

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This may be a stupid Q but can oil leak from where your oil sensor is if its gone bad? Or would this be a gasket related to the oil sensor.

#17

06-03-2011, 12:08 PM

JaxJim

Join Date: Jan 2010

Posts: 331

Oil will find its way to the lowest part of the engine - and that happens to be where the drain plug is. The oil may be coming from somewhere above. At least you've got a warranty. Oil leaks are expensive to fix.

#18

06-03-2011, 05:57 PM

xxtheshockerxx

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Quote:

Originally Posted by JaxJim

i don't think my oil is coming from up high. i don't have any oil higher than my oil pan and there isn't a leak on the pan gasket. so that's what makes me think the leak is on the bottom, either the sensor or oil plug

#19

06-27-2011, 09:44 PM

xxtheshockerxx

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figured i would update this thread. when i had my car on the hoist to put my exhaust on i noticed a very small leak from the pan gasket

and it is running straight down on the oil level sensor. (which is probably why it looked like the sensor was leaking) looks like the MC will be going to the dealer to get fixed up