diesel problems
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Junior User
Joined: Nov 2010
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From: Roblin,Ontario
diesel problems
i'm having problems starting my 6.9 diesel.
After it sits all nights I have to prime it every morning. I have taking the water seperator out cause it was sucking air, i did check the hose clamps (where the water seperator was).
Any ideas what i can check where it could be getting air or why it the fuel runs back to the tank.
thanks
After it sits all nights I have to prime it every morning. I have taking the water seperator out cause it was sucking air, i did check the hose clamps (where the water seperator was).
Any ideas what i can check where it could be getting air or why it the fuel runs back to the tank.
thanks
Hotshot
Joined: Feb 2004
Posts: 11,697
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From: Marengo, Iowa
Definitely sounds like the classic air intrusion. With the change in fuel (Low sulfur to ultra low sulfur) there have been a lot of o-ring leaks at the injectors. That is a likely culprit to start with. The water separator is a common issue as well.
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From: Roblin,Ontario
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Cargo Master
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I would say that you either have insuffecient fuel psi as a result of them being lose or air was sucked into the lines as a result of these loose fittings. You need to crack your injectors one by one (sometimes you get lucky and only have to crack a couple, and then the air gets moved out and you will have fuel there.
Cargo Master
Joined: Nov 2010
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Lol wow. Another thing, my buddy ran his older gmc or chev out of gas one time. He coasted to the pumps and it died. We had to crack I think the injector pump I think also. I would suspect its not getting enough fuel. Are your glow plugs heating it up enough?
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Junior User
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From: Roblin,Ontario
just a up date I found the main fuel line to the injector pump was loose. did my best to tighten it up. So i tighten up all the injector lines as well. Now it starts not too bad, but I can start it without filling the batteries and just a couple of tries.
But now i have to find a anti-freeze leak coming from the front of the motor some where but it s not coming from any hoses.
But now i have to find a anti-freeze leak coming from the front of the motor some where but it s not coming from any hoses.
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From: Denver Metro Area, CO
a hole through which antifreeze leaks when the bearings inside start going bad.