Hard starting LB7 - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 6 (permalink) Old 09-08-2013, 01:45 AM Thread Starter
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Hard starting LB7

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I bought this' 04 from a guy back in the fall. He replaced the head gaskets, and head bolts with studs. "Supposedly" he replaced the injectors, which are showing a good balance now. I have had the CP3 replaced, fuel filter housing replaced, intake air heater replaced and the glow plug relay also. Today it stranded me at Wal-Mart, so I left it for 5 hours. Returned to it and it fired up after about 5 seconds. After I arrived home, I killed it twice and it fired back up easily. I'm at my wits end. Does anyone have suggestions???
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post #2 of 6 (permalink) Old 09-10-2013, 05:23 AM
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okay, first I have to ask does the Security light come on when cranking? have you checked the fuel lines for cracks? was the filter in the tank ever replaced? is there algae in the tank?

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post #3 of 6 (permalink) Old 09-10-2013, 10:44 AM Thread Starter
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No, yes, not that I'm aware of x2.

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post #4 of 6 (permalink) Old 09-12-2013, 04:56 PM
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is the fuel bleeder screw the nylon one? are the o rings on the filter damaged or out of place. does it crank or does it just click like a dead battery?

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2007.5 Sierra 2500HD SLE 6.6L Duramax Extended Cab Long Box Z71 Fass 150/95, Rare Parts G2 hd tie rods, EFi Live, DSP5 a tune from Duramaxtuner.com, MBRP 4" Downpipe back, Edge CTS Insight, Cognito Idler/Pitman Arm Braces, PPE Deep Transmission pan, deep pan filter, Transgo Jr kit
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post #5 of 6 (permalink) Old 09-12-2013, 07:33 PM Thread Starter
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It cranks after awhile. The filter housing has just been replaced and the bleeder is metal. It is back in the shop and they have found a small leak between the CP3 and something, with the help of a mirror and flashlight. They are working their way to that now. It is so small, I don't think that is the big problem. However, I have been wrong once in my life, but I divorced her.

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post #6 of 6 (permalink) Old 09-13-2013, 04:10 PM
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Glad they managed to find your air leak in the fuel line, I had to laugh at the final comment

Smoke!!! Smoke!!!! Are you Smoking yet?
2007.5 Sierra 2500HD SLE 6.6L Duramax Extended Cab Long Box Z71 Fass 150/95, Rare Parts G2 hd tie rods, EFi Live, DSP5 a tune from Duramaxtuner.com, MBRP 4" Downpipe back, Edge CTS Insight, Cognito Idler/Pitman Arm Braces, PPE Deep Transmission pan, deep pan filter, Transgo Jr kit
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