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Old 11-19-2012, 10:20 PM   #1 (permalink)
countryboy74
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02 Dmax no start need help now plz help

it wont start unless you use either even if u it runs for 6 hours if shut it off it wont start unless you use starting fluid whats the problem
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Old 11-19-2012, 10:30 PM   #2 (permalink)
Brent@LDS
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Sounds like it maybe injectors. I would get balance and return rates checked.
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Old 11-19-2012, 10:41 PM   #3 (permalink)
lynn1130
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It might help with more information. While it could be injectors it could also be a lot of other things that are less of an issue. Give us some info on the truck, mileage, accessories, past history.

And starting fluid is not a good thing to use with diesels.
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Old 11-19-2012, 10:45 PM   #4 (permalink)
countryboy74
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it doesnt smoke and doesnt idle ruff at all and the fuel pressure is good in the line to the pump so it isnt bleeding off
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Old 11-19-2012, 10:54 PM   #5 (permalink)
countryboy74
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it has 134000 miles on it never been tuned completly stock with power everything
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Old 11-19-2012, 11:13 PM   #6 (permalink)
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sounds like it is loosing prime. have you tried to prime it rather than using ether?
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Old 11-19-2012, 11:26 PM   #7 (permalink)
countryboy74
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yes i have it doesnt work it seems like its a sensor or something electrical
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Old 11-20-2012, 12:10 AM   #8 (permalink)
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Please do not use ether unless an emergency and you can risk the engine damage. Next time it does it, unplug the Engine's Coolant Temperature Sensor, located on top of the thermostat housing and try to restart it. The sensors can go bad, giving a false reading to the ECM , preventing a start.

Also the SLIGHTEST air leak can cause a no start condition. I have a thread where I diagnosed and fixed a hard hot start issue. Mine turned out to be 6 problems causing it.
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Old 11-21-2012, 06:10 PM   #9 (permalink)
Deezz
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I had the same exact issue.
I had good pressure when running, I wasnt losing prime everything was good.
I had two injectors sending way too much fuel back through the return line which was causing the rail pressure while cranking to be very low.
I replaced all the injectors, primed it up and it fired right up.
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Old 11-21-2012, 08:30 PM   #10 (permalink)
chevyinlinesix
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Here is a link to my thread, I compiled a good list of things to check and how to check some of them too. Yes mine is an LB7, but they are basically the same.

Hard start sometimes
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1996 Chevy Silverado 2500HD, RC LB, 4x4, 14 bolt FF 3.73 posi, Suncoast 4L80E, completely custom engine, true dual 4" exhaust
1987 GMC Sierra 1500HD, RC LB, 12 bolt 3.08 posi, built 383 stroker, TH400, 13" towing converter, 26mpg highway, 22 city, daily driver/drag truck. Swapping in a built TT Duramax/Allison. Looking for about 700RWHP
1995 Chevy 3500HD, RC, DRW, 13' for looong box, Dana 80 4.63 gears, double framed, 15,000 GVWR
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