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03-23-2021, 04:56 PM
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#1 |
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Registered User
 Join Date: Aug 2019
Location: Cheraw
Posts: 1,300
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engine oil leak
I have a 2003 Yukon that is leaking oil. It seams to be coming down the block from the top. I have replaced the Oil pressure sender and the Crank position sender. Does anyone have any idea what it could be.
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03-24-2021, 01:33 AM
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#2 |
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Registered User
Join Date: Aug 2015
Location: Las Vegas NV
Posts: 371
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Re: engine oil leak
Valve covers
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Customization is what you want it to look like -- not what other people think it should look like |
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04-02-2021, 09:20 AM
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#3 |
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Registered User
Join Date: Mar 2000
Location: Clute, TX.
Posts: 1,935
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Re: engine oil leak
I just fixed mine... was the OIL COOLER BYPASS right above the OIL FILTER..... Cleaned it all up, got a new seal, ALL METAL , from Orielys and put sealer on both sides. I check it often and still dry. I sprayed BRAKE CLEAN all over under there to clean it all up
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2004 Silverado Crewcab 1972 Chevy Monte Carlo 2017 Chevy Tahoe |
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04-02-2021, 09:15 PM
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#4 |
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Senior Member
 
Join Date: Sep 2005
Location: Lewisville, Nc
Posts: 10,238
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Re: engine oil leak
Could aLso be the valley pan gasket leaking oil requires removing the I take and knock sensors
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David fuller Ase Certified Mechanic Click here to help support our board!! 1971 Chevy c-10 under going a 4.8l LSx swap Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305 2007 Honda Accord my daily 145kmiles 2002 Honda Accord 4 door With 330k(sisters car) 2005 toyota Avalon 228k( brothers car) 2002 Sububran 5.3 245k 2000 Tahoe 5.3l 378 General manager for Marco's Carwash & lube |
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04-03-2021, 11:53 AM
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#5 |
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Moderator
 
Join Date: Oct 2008
Location: Wentworth, NH
Posts: 5,014
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Re: engine oil leak
You need to track down exactly where on the engine it's originating.
Rinse it off and see where it comes back and from how high up.
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1959 M35A2 LDT465-1D SOLD 1967 Dodge W200 B383, NP420/NP201 SOLD 1969 Dodge Polara 500 B383, A833 SOLD 1972 Ford F250 FE390, NP435/NP205 SOLD 1976 Chevy K20, 6.5L, NV4500/NP208 SOLD 1986 M1008 CUCV SOLD 2000 GMC C2500, TD6.5L, NV4500 2005 Chevy Silverado LS 2500HD 6.0L 4L80E/NP263 2009 Impala SS LS4 V8 RTFM... GM Parts Books, GM Schematics, GM service manuals, and GM training materials...
And please let us know if and how your repairs were successful. |
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