Oil leak

Tiny
CODY07GMC
  • MEMBER
  • 2007 GMC SIERRA
  • 5.3L
  • V8
  • 4WD
  • AUTOMATIC
  • 129,000 MILES
I just bought this vehicle from a Chevrolet dealer and drove it about two weeks and it said low oil when I was pulling a s10 Chevrolet truck about ten miles. So I added oil drove for about another week or so and said low oil again. So I parked it in the garage and noticed oil spots on the ground. What could cause this and what would it cost to fix? Also, I had a friend tell me he saw blue smoke when I started it up. I have not had a chance to see the blue smoke.
Saturday, December 1st, 2018 AT 3:25 PM

10 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good evening,

Do you have any idea where the oil leak is located or the area? There are so many places oil can leak.

https://www.2carpros.com/articles/engine-is-leaking-oil

What would really help us id if you could take some pictures and upload them to this post so we can see it and further help you.

Roy
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Saturday, December 1st, 2018 AT 6:35 PM
Tiny
CODY07GMC
  • MEMBER
  • 6 POSTS
I looked under the truck is seems to be coming somewhere around the oil filter.
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Saturday, December 1st, 2018 AT 6:41 PM
Tiny
ASEMASTER6371
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Check the oil filter and see if it is tight and that it does not have a double gasket. Common issue.

Roy
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Saturday, December 1st, 2018 AT 6:51 PM
Tiny
CODY07GMC
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  • 6 POSTS
What is a double gasket?
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Saturday, December 1st, 2018 AT 6:52 PM
Tiny
CODY07GMC
  • MEMBER
  • 6 POSTS
I also do not see it actually leaking just oily around the housing unit.
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Saturday, December 1st, 2018 AT 6:55 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
When they change the oil there are times the old gasket from the oil filter sticks to the housing and when the new one is installed, it doubles and leaks.

The oil pan is around there as well.

Can you post some pictures?

Roy
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Saturday, December 1st, 2018 AT 6:57 PM
Tiny
CODY07GMC
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  • 6 POSTS
This is all after I gave it a little wipe down.
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Saturday, December 1st, 2018 AT 7:05 PM
Tiny
ASEMASTER6371
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That is your leak at the oil filter.

Spray that down with a can of brake kleen. Then run the engine and watch for the leak so you can pin point it.

Roy
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Saturday, December 1st, 2018 AT 7:10 PM
Tiny
CODY07GMC
  • MEMBER
  • 6 POSTS
So you think it could be because it has a double gasket?
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Saturday, December 1st, 2018 AT 7:12 PM
Tiny
ASEMASTER6371
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That is correct but you must inspect to be sure.

Roy
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Sunday, December 2nd, 2018 AT 4:53 AM

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