All crank... no start! - Chevy and GMC Duramax Diesel Forum
11-16 LML Duramax Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission, Etc.

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post #1 of 19 (permalink) Old 11-01-2019, 09:05 AM Thread Starter
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All crank... no start!

Heading down the highway and heard an engine rattle noise like a sputter dying sound. Pulled over, engine died and will not start. No trouble lights or codes come up on the scanner. Pumped up the fuel filter multi times and tried to start but no luck. 2014 dually, deleted 2 years ago without a problem until now. EFI live with 5 stage switch. What else can I be looking at?
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post #2 of 19 (permalink) Old 11-01-2019, 09:31 PM
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CP4

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post #3 of 19 (permalink) Old 11-01-2019, 10:49 PM Thread Starter
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rockn69 wins the prize! mechanic says the whole system needs to be replaced, and cleaned. Going to be a pricey job. Any other choice?
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post #4 of 19 (permalink) Old 11-02-2019, 01:44 AM Thread Starter
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What can you tell me about doing a CP3 conversion? Opinions? Also now would be a good time to delete the EGR I think
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post #5 of 19 (permalink) Old 11-02-2019, 11:04 AM
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Definitely do the CP3 conversion there's plenty of reading on it and also do a complete delete if possible.

2001 2500HD 4WD EXTENDED CAB LS,
S&B CAI, 4" STAINLESS STEEL EXHAUST, EFI LIVE FROM ATP TRUCKS, EDGE CTS, PPE BOOST VALVE, BANKS INTERCOOLER PIPE, AIR DOG II 165, REBUILT TRANNY WITH SUNCOAST KIT, TRANSGO SHIFTKIT AND BILLIT TORQUE CONVERTER, NEW UPGRADED TAILSHAFT, PUMP RUB FIX ON TRANSFER WITH NEW ALUMINUM TAIL SHAFT, NEW TOW MIRRORS, NEW GAGE HEAVY DUTY FRONT AND REAR BUMPERS, BEANS SUMP, FUMOTO VALVE, RARE PARTS TIE RODS WITH COGNITO PISK, MAD JACK FUEL FILTER ACCESS DOOR, STAINLESS STEEL SPEED BLEEDERS.
2011 GMC 3500HD DUALLY Welding Bed, 4WD CREW CAB, 4" downpipe back exhaust, def delete, egr delete, with new LB7 up pipe, pcv reroute, Fass 150, EFI live with DSP 5, HSP CAI. Air Lift Air bags. PPEI transmission tune.
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post #6 of 19 (permalink) Old 11-03-2019, 12:17 AM Thread Starter
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In for a penny... in for a pound! Full delete for sure. Should a lift pump be added as well with the CP3 or should I have done that before the 4 crapped out?
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post #7 of 19 (permalink) Old 11-03-2019, 06:23 AM
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Seeing as you're running a DSP5 I assume you have some bigger HP tunes, so it would be a good idea to run a lift pump.

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post #8 of 19 (permalink) Old 11-03-2019, 10:24 AM Thread Starter
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So with the CP3 kit, can I just pick one up off the shelf or have they been modified to fit different applications, or is it just the lines etc that are specific to each install?
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post #9 of 19 (permalink) Old 11-05-2019, 06:29 PM Thread Starter
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Update: The CP4 gear is in pieces inside the timing cover, the timing cover is broken where the gear tried to escape. Has anybody seen this happen before? I'll post a pic as soon as I figure out how to lol
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post #10 of 19 (permalink) Old 11-05-2019, 09:13 PM
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So pump grenaded wiping out fuel system, plus the gear taking out cover? Or gear broke & bust cover, plus what ever else you haven't discovered yet That's some bad luck.

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