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Fuel leaking into engine oil 2003 duramax - 2003 Chevrolet Silverado 3500

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Fuel can leak into engine oil if your piston rings are worn or your block could have a crack.

Posted on Dec 06, 2012

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chuckster57
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SOURCE: 02 Duramax deisel mixing deisel

'02 Duramax engine has the injectors under the valve covers. There is a set of "fuel return" lines that are attached to the injectors under the valve covers too. This is where I would be looking for fuel.

Posted on Feb 08, 2011

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SOURCE: low fuel rail pressure

who did a conversion on this truck???? the duramax is a common rail engine and can not handle wvo or sve. it will destroy your entire fuel system in no time on this truck. if you want to do a vo conversion you need to get a diesel with an inline injection pump or one of the older powerstrokes. i would suggest you quit trying to run wvo through this truck if you do not want to do a lot of very expensive damage

Posted on Apr 29, 2009

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SOURCE: fuel in oil on 2002 chevy 2500hd duramax

THE DURAMAX ENGINE INJECTORS GO BAD AND SPRAY TO MUCH DIESEL AND IT FILLS THE CRANK CASE UP 200 THOUSAND MILE WARRANTY COMMON PROBLEM DON'T DRIVE IT ANY MORE IF U HAVE BAD INJECTORS.

Posted on Jan 20, 2010

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I got diesel going into my oil pan on a 2003 Chevy. Duramax


You probably have a problem with one or more of your injectors. You may want to check with a dealer. GM has extended the warranty on the injectors in these early Duramax engines.

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A lot of my ford diesel friends are saying hot shots secret oil additive help thier injector problems? shoud i add it to my duramax 2003? already had all injectors replaced 70000 miles ago.


It will not help your Duramax injectors. They are not hydraulic. It will help your turbo and clean the rings in your engine. Hot Shot's Secret is a detergent and dispersant designed to clean the inside of the engine, especially the inside of oil fired injectors.

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02 Duramax deisel mixing deisel fuel into engine oil


'02 Duramax engine has the injectors under the valve covers. There is a set of "fuel return" lines that are attached to the injectors under the valve covers too. This is where I would be looking for fuel.

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2003 Duramax Diesel loosing prime and will not start until I lift the hood and pump the prime plunger on the fuel filter housing.


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2003 gmc duramax wont start after engine is warm and turned off.it wont start until engine is cool again


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Fuel in oil on 2002 chevy 2500hd duramax


THE DURAMAX ENGINE INJECTORS GO BAD AND SPRAY TO MUCH DIESEL AND IT FILLS THE CRANK CASE UP 200 THOUSAND MILE WARRANTY COMMON PROBLEM DON'T DRIVE IT ANY MORE IF U HAVE BAD INJECTORS.

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1 Answer

Low fuel rail pressure


who did a conversion on this truck???? the duramax is a common rail engine and can not handle wvo or sve. it will destroy your entire fuel system in no time on this truck. if you want to do a vo conversion you need to get a diesel with an inline injection pump or one of the older powerstrokes. i would suggest you quit trying to run wvo through this truck if you do not want to do a lot of very expensive damage

Apr 27, 2009 | 2003 Chevrolet Silverado 2500HD

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