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I have a 2003 Chevrolet Silverado 2500 Diesel. When the truck is parked on a hill with the front end higher than the back, I have to prime the fuel to get it to start. If I park the truck backwards up a hill, it starts without priming. The fuel filter housing was replaced last year, so I know there is no crack. Injectors were also replaced last year. This started happening about 3 months ago.

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Posted on Jan 02, 2017

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SOURCE: Chevrolet 2500 Not Running, May Be Fuel Filter Sensor

That red wire is only for the fuel heater.will not cause a no start.try pumping the primer pump on top of the fuel flter hsg. but first open the bleed screw,which is black plastic also located on the top.this will eliminate any trapped air that might have entered the fuel intake system.if the pump does not get firmer and harder to push, then you have a leak in the fuel supply lines or the ck valves in the fuel filter hsg or stuck open. Still no start have it scanned to ck fuel pressure while cranking.it should be close to 5000 lbs

Posted on May 14, 2008

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  • 114 Answers

SOURCE: dodge diesel lost its prime!

You have to loosen your injector lines one at a time and have someone crank the engine. once you get fuel to that injector,tighten it and move onto the next one. This will be a lengthy process and make sure you have good batteries cause this process could drain them. Good luck

Posted on Dec 24, 2008

Papa Chan
  • 56 Answers

SOURCE: 2003 GMC Duramax Diesel won't start

I see that you had the injectors replaced 20,000 miles ago. I would still check the oil to make sure it is not overfull. The new injectors could be bad. If the oil level is not overfull then get a paper towel and touch the dip stick tip on the paper towel while oil is on the dip stick. If it's only oil it will not spread. If it has diesel in the oil the oil with spread. If this test doesn't show the injectors to be bad then you have three other possibilities. The FICM (fuel injection control module), the fuel pressure regulator, or the injection pump. It's hard to pinpoint what the problem is without running more tests and the only way to run those tests is with the computer the dealership has. Just so you know your injectors are still under warranty until 100,000 miles. Most likely you will have to take it to the dealership to get you truck fixed. I hope this helps you some.

Posted on Jan 05, 2009

  • 99 Answers

SOURCE: Chevrolet 2500 Not Running, May Be Fuel Filter Sensor

if it dont have good compression it will not start check the comp and make sure there no water in oil if fuel pressure is low it will not pop the injector open try some starting fluid

Posted on Jan 26, 2009

  • 255 Answers

SOURCE: 1987 Chevy R10 project truck won't start

check the float on the carb is stuck shut not letting fuel in

Posted on Aug 17, 2009

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1 Answer

Fuel pump not running when parked up hill


is the fuel level low? when parked on incline the fuel will go to front or back of the tank, if the level is low it might not reach the pump which is usually close to center

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I changed the fuel filter in my 2004 silverado and now my truck won't start


It would be nice if you were to mention WHICH ENGINE your Silverado is equipped with...Knowing WHICH Silverado MODEL you have would also be nice...1500, 2500, 2500HD, 3500. etc.
If it is a gas engine, all you should have to do is to cycle the ignition key ON for about 5 seconds, then turn the ignition switch OFF and wait about 30 seconds, then repeat this about 3 times. This will allow the fuel pump prime to get the air out of the fuel lines. It should start after this is done.

If your truck is equipped with a diesel engine, the process is much different, let me know if this is the case, and I will post the fuel filter replacement instructions for the diesel.

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Hello and welcome. you will have to perform the bleed procedure using the fuel prime on the fuel filter housing. there is a pump on top of the fuel filter assembly, on the passenger side of engine.

Open the vent valve screw (1) by turning the screw counterclockwise several full turns.




Operate the priming pump (1) by repeatedly pumping until a small amount of fuel seeps from the vent valve. Allow the pump to fully return upward between pumps. When fuel is present, the filter is full of fuel and the system is primed.
Close the vent valve screw.

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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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has it got a non return valve inline fuel filter fitted????

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Chevrolet 2500 Not Running, May Be Fuel Filter Sensor


if it dont have good compression it will not start check the comp and make sure there no water in oil if fuel pressure is low it will not pop the injector open try some starting fluid

Dec 18, 2008 | 2001 Chevrolet Silverado 2500HD

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