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Duramax Diesel P0101


 
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Ugnany
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Joined: 16 Jan 2019
Posts: 1
Location: Clifton, NJ

PostPosted: Wed Jan 16, 2019 11:14    Post subject: Duramax Diesel P0101 Reply with quote

Ok P0101 MAF/VAF Sensor Range/Performance Problem. I changed the sensor that didn't work. I have a book here that says Intake Leak/Blockage or the sensor. Anyone got any ideas?
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DaveWall
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Joined: 12 Nov 2007
Posts: 967
Location: Gloucestershire

PostPosted: Fri Mar 01, 2019 6:11    Post subject: Reply with quote

The old trick to test intake gaskets was to run a cold engine on idle, and spray a bit of carb cleaner/brake cleaner around the intake/manifold (ON THE OUTSIDE) and see if the engine note changes... if it does, you have a leak....


Works very easy in my experience especially to check gaskets you just cant quite see all around, but usual rules of be vary careful spraying  flammable stuff anywhere near the running engine etc (Appropriate safety gear!!), also works much better on petrol cars than it does on diesels.
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