1999 Cadillac Concours OIl Leak

1999 CADILLAC DEVILLE CONCOURS

80,000 MILES • V8 • FWD • AUTOMATIC

BIG GERALD

MEMBER
2 POSTS

it appears I have a oil leak. I notices the oil pan is dirty an maybe leaking. Is it possible that the intake manifold could be leaking as well? What would it take to repair the manifold if its leaking and is there an easy way to re/re the oil pan seals?

Thanks

Mar 7, 2010 at 12:55 PM

LEGITIMATE007

✓ASE Certified Mechanic
5,121 POSTS

the maniflold could be leaking but mostlikely its the valve cover, and the oilpan has a gasket that goes around the perimeter of the pan, it doesnt cost much to fix this in my opinion.

Mar 7, 2010 at 1:02 PM

BIG GERALD

MEMBER
2 POSTS

Valve covers are the gaskets hard to replace, and the oil pan gasket is there enough clearance to re/re the oil pan gasket?

Thank you for your previous comments

Mar 7, 2010 at 4:20 PM

LEGITIMATE007

✓ASE Certified Mechanic
5,121 POSTS

yes, but if you have big hands and arms you may have to remove some other things, if you have the money , I would just have it done

Mar 7, 2010 at 6:47 PM

FACTORYJACK

✓ASE Certified Mechanic
4,159 POSTS

Don't try, the oil pan will not come out without the crossover pipe removed, and the crossover pipe will not come out without the transmission removed. None of this will come out, without the frame removed. If you are going far enough to remove the oil pan, you will be benifitted by resealing the lower crankcase half as well. There is not an oil pan gasket for this, although you will remove a seal from it, that was early design, or what the engine was manufactured with. It requires the use of sealant now, GM p/n 12378521.

Mar 8, 2010 at 10:53 AM

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