Question about 2006 Chevrolet Silverado 3500

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Chevy duramax won't start when it's cold

Had the glow plugs replace a year and a half ago, fuel filter replaced a month ago. Sounded like it wanted to kick over but it just wouldn't go. Manually pumped the fuel filter after cranking as it lost pressure. Have it plugged into the heater. Glow plug light goes off shortly.

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Why?

Posted on Oct 11, 2013

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Posted on Jan 02, 2017

psds4
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SOURCE: 1997 Chev Cavalier hard starting

it sounds like the check valve in the fuel pump is letting the fuel bleed back into the tank

Posted on Sep 23, 2008

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SOURCE: 1998 Chevy tahoe Hard to start when cold

Hello, yes the check valve is in the fuel pump assembly. The check valve is leaking and the pump will burn out soon. Unfortunately the aftermarket fuel pumps can be very unreliable. A good portion of problems we see on this site are from people who replace the pump sometimes twice and it still doesn't work.

Posted on Jan 03, 2009

  • 10 Answers

SOURCE: 1996 Chevy Silverado 1500 Starting Problems

Just from what you said it sounds like your vehicle might not be holding its residual pressure which means after you turn a vehicle off, your fuel injection system should hold a certain amount of pressure in the system, but if that pressure drops to fast your vehicle may have a hard time starting. Things to look for when you lose fuel pressure is the fuel pressure regulator may be leaking, fuel pump check valve,leaky fuel injector or they maybe a small leak in one of the fuel lines. I only suggested this cause i had a car with the similar problem.

Posted on Feb 01, 2009

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SOURCE: 1998 Chevy tahoe Hard to start when cold

replace your MAP sensor(manifold absolute pressure) the map sensor is the computer for your fuel pressure regulator telling how much pressure. Unless your tahoe runs like **** going up hill than it inevitably your fuel pump

Posted on Feb 17, 2009

  • 17 Answers

SOURCE: Need to know firing sequence

I am told the glow plugs heat up in "firing" order, also the Duramax uses a intake air heater to warm the air on cold starts.

Posted on Jan 13, 2011

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