Question about 2000 Cadillac Catera

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My 2000 Cadillac Catera is has water mixed with

My 2000 Cadillac Catera is has water mixed with my motor oil My mechanic told me that when i was going to have him change my oil he notice what seems to be a paste white paste looking solution in the place in where we pour our motor oil in can you tell me how to fix this and what can be the problem?

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Oil cooler under the intake plenum at rear top of engine is either bad or the gasket is gone. If you take oil filler cap off, you will see the paste on the cap. Are you going through coolant every so often?

Same as on my wife's 01.

Posted on Jul 25, 2010


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I have a 1999 cadillac catera and there is water in my oil.

There are a couple of possibilities here.

Head gasket is leaking or

Engine oil cooler is leaking.

Both are expensive and quite a bit of work.

If you are planning on fixing the problem yourself, you will want to buy the haynes manual for your vehicle.

Even if you are not a mechanic, it is worth buying the manual for your vehicle. It has a lot of reference material and sometimes it will help your mechanic to fix your vehicle faster.

If you need more help, post a comment.



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