Question about 2003 GMC Yukon

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Battery not charging gmc 2003 duramax diesel truck

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6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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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

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SOURCE: We have a 2003 GMC Sierra duramax diesel truck We

i have a 2003 , 2500HD Duramax with 223000km . I was way up in the north country when this started to happen to my truck. I found an old mech. who had to come back into the bush to give a boost because i couldn't start my truck as well. He told me he has seen this before on the 03's. Long story short it was the injectors the dealer replaced all 8 under warrenty. GM sent me a letter later saying they will cover all diesel parts under warrenty for 320,000km and another 6yrs. its your injectors change your oil more often until you get it fixed. To check this park your truck for the day and try starting it if it will not start. Go under the hood and prime the fuel filter (pump until it gets hard) then turn the truck over a little and prime the filter again until hard then start the truck. if this works then get the injectors replaced by GM. This worked for my truck hope it helps. Rick

Posted on Mar 24, 2009

  • 1 Answer

SOURCE: 2003 gmc sierra duramax 2500

Problem with Diesel Fuel System. Gmc 2002 duramax 2500 HD 4x4 will start 

Posted on May 15, 2009

  • 21 Answers

SOURCE: RFA battery low. What does this mean

Check you Key FOB for a low battery.

Posted on Jun 01, 2009

  • 462 Answers

SOURCE: I need to replace the fuel filter on my 2003 GMC

ITS A SPIN ON FILTER, YOU NEED TO DISCONNECT THE WATER SENSOR ON THE BOTTOM OF THE FILTER, THEN USING A STRAP FILTER WRENCH LOOSEN THE FILTER AND SPIN IT OFF.

CHECK THE FILTER HOUSING TO BE SURE THE INNER FILTER SEAL ISN'T ON THE HOUSING AND CAME OFF WITH THE FILTER.

REMOVE THE WATER LEVEL SENSOR AND DISCARD THE SEAL.

INSTALL THE WATER LEVEL SENSOR ON THE NEW FILTER. USING A LITTLE GREASE ON THE INNER FILTER SEAL AND ON THE OUTER O-RING TO HOLD IT IN PLACE, SPIN ON THE NEW FILTER.

OPEN THE VENT ON THE UPPER SIDE OF THE FILTER HOUSING. PUSH DOWN ON THE HAND PUMP QUICKLY UNTIL THE FUEL IS COMING OUT OF THE VENT. CLOSE THE VENT AND PUMP THE FILTER PUMP UNTIL IT FEELS SOLID. AT THIS POINT START THE ENGINE. IF IT STALLS PUMP IT UP AGAIN AND RESTART THE ENGINE. IF YOU HAVE AN ASSISTANT THEY CAN PUMP THE FILTER PUMP WHILE THE ENGINE IS RUNNING AND QUIT WHEN YOU FEEL THE ENGINE IS NOT GOING TO STALL. ABOUT 10 TO 15 SECONDS USUALLY WORKS.

CHECK FOR LEAKS.

BEFORE STARTING THE ENGINE USE BRAKE WASH TO REMOVE THE FUEL SPILLED DURING THE FILTER REPLACEMENT. ALLOW IT TO DRY BEFORE STARTING THE ENGINE.

RATE ME PLEASE.

Posted on Jul 07, 2009

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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.

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