Emergency need help(not starting)



Emergency need help(not starting)

Postby chromebumpers » February 26th, 2013, 11:28 am

I have a 2006 Silverado 2500HD with the Duramax Diesel. Wife used it last night and called me to say it started and stalled. Since then - It will turn over but not start up, not ever sounding like it wants to start. I checked with an OBDII scanner and NOTHING] The fuel gage shows 1/4 tank.
Last edited by chromebumpers on February 27th, 2013, 5:52 am, edited 1 time in total.
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Re: Emergincy need help(not starting)

Postby grumpyvette » February 26th, 2013, 11:38 am

I know you probably checked you have
fuel in the tank?
fuel pressure at the engine?
no water in the fuel ?
have you replaced the fuel filter and drained water from the filter check valve lately?
are you getting oil pressure?
Does the engine ACTUALLY spins easily? (not just the starter spins)
and you got out a multi meter to verify all the fuses are good????
Image

Instructions

1

Remove the fender well located just above the front tire from the passenger side of the truck by pulling the plastic clips out. The clips are around the edge of the fender well and should be easy to remove by hand.
2

Locate the fuel water separator, which is built into the bottom of the fuel filter on the side of the engine. The fuel filter/ water separator is a round canister about 10-12 inches long and is usually white. Removing the fender well makes it easy to access the bottom of the fuel filter without opening the hood.



3

Unplug the sensor connector from the sensor, which is on the bottom of the fuel water separator. There is a plastic lock tab on the sensor connector that you need to bend back to release the connector so it can slide out.
4

Place the small bucket underneath the fuel water separator.
5

Loosen the threads on the plastic petcock valve on the bottom of the fuel water separator by gripping the valve at the top with a pair of slip-groove joint pliers and turning counter-clockwise. Turn the petcock valve carefully so you don't strip the threads.
6

Unscrew the petcock valve and O-ring seal from the bottom of the fuel water separator and set them aside. When you unscrew and remove the petcock valve, you will find the O-ring valve at the top of the threads to ensure a tight seal between the petcock valve and the fuel water separator.
7

Drain the water from the fuel water separator into the small plastic bucket.
8

Lubricate the O-ring with petroleum jelly to hold it in place and protect the rubber from pinching and drying out. Place a dime-sized amount of lubricating jelly on your finger, then rub the jelly around the ring on both sides to coat it evenly.
9

Put the O-ring back over the threads of the petcock valve and then hand-tighten them back into position on the fuel water separator. You are simply putting them back in place and will need to turn them clockwise until you can't turn them anymore.
10

Grip the petcock valve with the slip-groove pliers and turn clockwise to further tighten them onto the fuel water separator. Be careful not to over-tighten and strip the plastic threads.
11

Plug the sensor back into the sensor connector on the bottom of the fuel water separator in the same way that you removed it. The locking tab should lock back into place, but you might have to push it down to make sure it locks.
12

Re-attach the fender well to the truck by pushing the plastic clips back into the holes around the fender. You may need a second person to hold it in place so that it is properly aligned.
13

Open the hood of the truck to access the top of the fuel filter on the passenger side of the truck. This is a white canister with a silver or aluminum housing on top of it and rubber or metal fuel lines leading into it.
14

Prime the filter by pushing in on the metal primer plunger button on top until you can't push it anymore. This pumps fuel back into the fuel water separator so that the truck can start.
15

Pour the drained water into an old fuel can and take it to a fuel recycling center or an auto parts store that recycles fuel. Proper recycling prevents dangerous fuels from leaking into the water supply.
IF YOU CAN,T SMOKE THE TIRES AT WILL,FROM A 60 MPH ROLLING START YOUR ENGINE NEEDS MORE WORK!!"!
IF YOU CAN , YOU NEED BETTER TIRES AND YOUR SUSPENSION NEEDS MORE WORK!!
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Re: Emergincy need help(not starting)

Postby chromebumpers » February 26th, 2013, 12:45 pm

I replaced the fuel filter last summer and I really didn't put that many miles on since. The information screen showed 67% life left. I have the truck sitting at a church parking lot and not a lot I can do there. I am going back to check the filter and pump it up.
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Re: Emergincy need help(not starting)

Postby mathd » February 26th, 2013, 1:26 pm

This diesel site has been really helpfull for me:
http://www.dieselplace.com/forum/

They do mostly chevrolet.
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Re: Emergency need help(not starting)

Postby chromebumpers » February 27th, 2013, 5:51 am

Paul you're correct again. I unscrewed the plug at the bottom of the filter, and a small amount of fuel (or watered fuel) came out. I pumped the primer about 5 times and after a few cranks it started. I had a cheap filter and now I'll install a Platinum NAPA filter. I'm going to paint the primer cap red and show the wife what to do if this ever happens again.

Thank you very much!
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Re: Emergency need help(not starting)

Postby grumpyvette » February 27th, 2013, 8:14 am

glad I could help! this is all too common on diesel engines, simply because diesel absorbs moisture even in gas station tank storage, so if the vendors fuel storage tanks get low its all too common to get a couple ounces of water pumped into your trucks tank, when you fill the tank with diesel

Id suggest pouring a 1/4 can of this stuff in the tank as it will tend to remove trace moisture

Image
IF YOU CAN,T SMOKE THE TIRES AT WILL,FROM A 60 MPH ROLLING START YOUR ENGINE NEEDS MORE WORK!!"!
IF YOU CAN , YOU NEED BETTER TIRES AND YOUR SUSPENSION NEEDS MORE WORK!!
grumpyvette

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Re: Emergency need help(not starting)

Postby chromebumpers » February 27th, 2013, 8:41 pm

The part where the fuel filter is attached (pump?) is already wired for some purpose, so why couldn't there be a sensor to give a defect code? having a diagnostic code for low fuel pressure, or something pointing to the filter being a problem would be fantastic . . . . . IMO anyway.
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