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This is a valve body performance or operating code.
GM recomends changing the valve body for 16,000,000,000 or some such insane number.
Many people have done a flush service and removed and did a manual scrub on the valve body to cure it.
BUT
The underlying problem might be a failed clutch shedding metal shavings or a bad "Hard Part" shedding metal shavings.
What else can I help you with?
Fuel pump diagram on 2003 Chevy duramax diesel truck?
location of fuel pump 2003 chevy 3500 duramax diesel
Where is the fuel pump on a 2003 Chevy Silverado 3500 Duramax Diesel?
Where is the fuel pump on a 2003 duramax diesel
How much horsepower does a 2003 Chevy duramax have stock?
300hp
What is the towing capacity for a 2003 Chevy 2500 Pickup with the Duramax Diesel?
12000 lbs
How long has Chevy used Allison transmissions?
Since they used the Duramax diesel, 2003.
How many quarts of oil does a 2003 Chevy silverado duramax hold?
It should hold 10 quarts.
Reset check engine light on 2003 Chevy 2500hd duramax?
You can either bring it in to a Chevy dealer or use a programmer/tuner to reset the check engine light.
Does your 2003 duramax have glow plugs?
Yes, all duramax's have glow plugs.
Stock horsepower for a 2003 duramax?
300hp
How do you change fuel filter on 2003 Chevy silverado 2500 hd with 6.6 duramax?
It is a spin on type, just remember to fill the new filter with clean diesel fluid before you spin it on.
What causes excessive road noise on a 2003 Chevy Trailblazer?
Front hubs my be wearing out.
Pulley diagram for a 2003 gmc sierra duramax?
pictrue of pully diagram
