Question about 1996 Chevrolet Blazer

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Oil clogged won't drain

Took my truck in to get a oil change and the oil will not drain. oil is clogged. What can i do to unclog the oil without buying a oil pan.

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Remove the oil pan, clean it out, replace it including a new gasket if the old one is bad.

Posted on Feb 10, 2009


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Oil clogged won't drain

The oil is probably old and just sludged up and/or baked a little. Pull the oil drain plug. If it doesn't drain, stick a screwdriver in the drain hole to pierce the clog, it'll start draining after that.

Make sure to change you oil as often as manufacturer recommends.

If the vehicle has been sitting for awhile and/or it's been a long time since the last oil change, then this will happen in some vehicles.

As far a loosening deposits, there are arguements that synthetic oils help clean the engine. My personal recommendation would be to increase the frequency of your oil changes. That'll work best and help your car in the long run.

I think for the initial oil change, you should use very cheap oil, and drain it after 500 miles or so and see how it looks. Then put the good stuff in.

You can also send your oil off for analysis if you really wanna get down to it. Depending on where you live, there may be a lab near you. It'll break down how your oil looks as far as contaminiation, mineral deposits, etc.

Feb 10, 2009 | 2001 Chevrolet Blazer

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