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Engine leak problem

Engine leak problem

Postby robbierob02 [OP] » May 13 2012, 12:17am

I have a small oil leak and I went to inspect it and found this and have no idea what happened, I've gotten oil changes in the past and they never told me about this problem.. What are your ideas?
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Image
Image
2002 Chevy Silverado Ext. Cab
BAGGED
1/2" valves, 2-Viair 380's, 2-5 gallon tanks
Airaid CAI
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robbierob02
Firing on 5 cylinders [L1]
Firing on 5 cylinders [L1]
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Related Topics  2007 Silverado Engine problem   Oil Leak   Coolant leak   mystery exhaust leak   odd oil leak   Fuel leak on 2007   Please help me identify cause of this coolant/water leak   Power Steering Fluid Leak   1995 350 TBI oil leak question   02 Sensor Problem   I have a starting problem too   Need help! Ticking problem!   hesitation problem   thermal problem? 
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Re: Engine leak problem

Postby ASTE25 » May 13 2012, 2:14am

Looks like the rear main seal is leaking (not uncommon) or the oil cooler block off plate is leaking (also not uncommon). The easiest fix is the cooler line block off plate. The rear main seal would have to have the transmission removed to replace it.
Jordan
2013 Blue Granite Metalic Silverado 2500HD Z71 4X4 extended cab regular bed
6.6L Duramax/Allison 6 speed
Line-X premium over the rail (black)
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Re: Engine leak problem

Postby robbierob02 [OP] » May 13 2012, 3:03am

Where is the oil cooler plate at?
2002 Chevy Silverado Ext. Cab
BAGGED
1/2" valves, 2-Viair 380's, 2-5 gallon tanks
Airaid CAI
Original Poster
robbierob02
Firing on 5 cylinders [L1]
Firing on 5 cylinders [L1]
Posts: 53
Topics: 12
Blogs: 0
Joined: Sep 14 2011, 5:17am
Years of membership: 2 years of membership2 years of membership
Location: Arizona
Year: 2002
Make/Model: Chevrolet Silverado
Extra Info: Extended Cab
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Re: Engine leak problem

Postby ASTE25 » May 13 2012, 3:14am

It is right above the oil filter on the side of the block. It's got two bolts holding it down.
Jordan
2013 Blue Granite Metalic Silverado 2500HD Z71 4X4 extended cab regular bed
6.6L Duramax/Allison 6 speed
Line-X premium over the rail (black)
User avatar
ASTE25
Shifting into Sixth Gear! [L3]
Shifting into Sixth Gear! [L3]
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Re: Engine leak problem

Postby robbierob02 [OP] » May 13 2012, 10:18pm

What about the block that's sitting crooked in the second image? Not sure if it's the transfer case, just guessing here but why is it not aligned like that?
2002 Chevy Silverado Ext. Cab
BAGGED
1/2" valves, 2-Viair 380's, 2-5 gallon tanks
Airaid CAI
Original Poster
robbierob02
Firing on 5 cylinders [L1]
Firing on 5 cylinders [L1]
Posts: 53
Topics: 12
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Joined: Sep 14 2011, 5:17am
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Location: Arizona
Year: 2002
Make/Model: Chevrolet Silverado
Extra Info: Extended Cab
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Re: Engine leak problem

Postby O'Brien » May 13 2012, 11:04pm

Man, there's so much grunge in those pics ...who could make heads or tails of the leak source. For all I know the filter is not tightened properly or whoever changed the oil splattered a mess all over place.I suggest a thorough wipedown of the entire area and go from there. Check with your hand and see if the filter is tight. Also ,once wiped down, remove the small inspection cover disc and feel with your finger inside the housing and see if you come out with a finger full of oil.This will let you know for sure if the seal is the source.
2012 Silverado LT 6.2L w/373 9.5 in. 14 bolt rear, 18"Z71 rims w/ 285/65/18 BFG Ta/Ko tires,2" billet aluminum front leveling kit,2011 grill insert, Amp Power Steps
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Re: Engine leak problem

Postby ASTE25 » May 14 2012, 3:36am

I agree, that does look like it has been leaking for some time.
Jordan
2013 Blue Granite Metalic Silverado 2500HD Z71 4X4 extended cab regular bed
6.6L Duramax/Allison 6 speed
Line-X premium over the rail (black)
User avatar
ASTE25
Shifting into Sixth Gear! [L3]
Shifting into Sixth Gear! [L3]
Posts: 10872
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Images: 21
Blogs: 0
Joined: Jan 03 2011, 6:37am
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Re: Engine leak problem

Postby robbierob02 [OP] » May 14 2012, 7:12am

How about the block where that bolt is missing in the second pic? What's with that?
2002 Chevy Silverado Ext. Cab
BAGGED
1/2" valves, 2-Viair 380's, 2-5 gallon tanks
Airaid CAI
Original Poster
robbierob02
Firing on 5 cylinders [L1]
Firing on 5 cylinders [L1]
Posts: 53
Topics: 12
Blogs: 0
Joined: Sep 14 2011, 5:17am
Years of membership: 2 years of membership2 years of membership
Location: Arizona
Year: 2002
Make/Model: Chevrolet Silverado
Extra Info: Extended Cab
Group Membership:
Registered users

Re: Engine leak problem

Postby bill92250 » Apr 21 2013, 7:25am

Did you ever figure the leak out? My truck looks the same, and worried about the rear main.
bill92250
Firing on 1 cylinder [L1]
Firing on 1 cylinder [L1]
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Re: Engine leak problem

Postby chevysilverado006 » Apr 27 2013, 3:24am

My truck been leaking around transmission bell housing and motor where transmission bolts to the back on motor I work for used car lot fixing cars and another guy told me its rear main seal on the motor. that's bad. I saw mine with this leak past 2 oil changes ago.

its not bad like the photos the guy posted of his problem...
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chevysilverado006
Firing on 1 cylinder [L1]
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