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#1
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Got a weird issue.
Truck is a 2009 Sierra, Truck had dead batteries when it came into the shop, so I charged them up fully, Good voltage to the truck, Go to crank it, Nothing but clicks to the starter, BUT when I put a diagnostic relay in (dummy relay with a switch) truck cranks. Throwing the following DTCs: P0633 (I will post any other ones in a few when I go check the truck again.) Truck has the xx8594 Cal in (actually flashed a new one from GM). The Vats light is NOT lit up on the cluster. Just the TPMS light and MIL light. Key is already learned according to the tech 2. Has anyone seen this? I always seem to get the troubled children.. ![]() I have been lacking in my visits lately, I promise to visit more often ![]()
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SOCAL DIESEL TRUCKS WWW.SOCALDIESELTRUCKS.COM MCFOO RACING WWW.MCFOORACING.COM -"Casper" 2005 GMC LBZ ECSB Best Time: 10.59 @ 128 (Kat Driving) -"Black Betty" 2006 GMC LBZ CCSB Best Time: 12.70 @ 104 - The McRatsMike L Trans w/ Goerend "G" T/C Engine #2 -"Bender" 1978 Chevy C30 4x4 454/TH400 Currently Soon...Kodiak LBZ / Ally 2000 5 speed. and a bunch of different things to come... ![]() -"Mobile Marriott" 2006 Fleetwood Gearbox 300fs McFoo Racing mobile command center ![]() -"The Xploder" 2002 Ford Explorer XLT/SE (Sucks Edition) Daily Driver. ![]() Thanks to all that helped me - Mike L @ Inglewood Transmission - Dan & Drew @ PPE |
#2
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Check grounds and reseat ecu connection.
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2010 GMC 1500 SCSB Denali Clone < lifted 22's/33's, Kooks, Magnaflow, 5.3, 6l80, TVS1900, lots of boost, Mayhem tuned, etc... ![]() 2015 Corvette Stingray Z 51 < Stock... ![]() 2016 LML CCSB Denali < Lifted 22's/35's, Fox 2.0 < I officially need help. ![]() |
#3
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Grounds were cleaned at the terminals and the had the ECM out to clean everything. Same results. Next thing I am doing is checking fuses for bad connections (could be something as stupid as that)
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SOCAL DIESEL TRUCKS WWW.SOCALDIESELTRUCKS.COM MCFOO RACING WWW.MCFOORACING.COM -"Casper" 2005 GMC LBZ ECSB Best Time: 10.59 @ 128 (Kat Driving) -"Black Betty" 2006 GMC LBZ CCSB Best Time: 12.70 @ 104 - The McRatsMike L Trans w/ Goerend "G" T/C Engine #2 -"Bender" 1978 Chevy C30 4x4 454/TH400 Currently Soon...Kodiak LBZ / Ally 2000 5 speed. and a bunch of different things to come... ![]() -"Mobile Marriott" 2006 Fleetwood Gearbox 300fs McFoo Racing mobile command center ![]() -"The Xploder" 2002 Ford Explorer XLT/SE (Sucks Edition) Daily Driver. ![]() Thanks to all that helped me - Mike L @ Inglewood Transmission - Dan & Drew @ PPE |
#4
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Just had something similar happen to my dads LMM. Was down for headgaskets went to start and batteries were dead. Charged batteries and wouldn't crank, gauges wouldn't work either. Disconnected the batteries and undid the bale connectors checked for bent pins. Hooked everything back up and it started fine and everything worked. No codes.
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2008 GMC duramax crew cab short bed 2500. 10.98@124mph Thanks to Mike L, SoCal Diesel, and Abel Chevorlet. Tailgate Crew Member #1 |
#5
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Truck cranks with the key now!! Had a brain fart, forgot this truck had a battery under the passenger door on the frame, I thought it only had one. Well that battery was dead dead. Swapped both batteries out and everything is good. Going to finish it up tonight or tomorrow morning and she will start for the first time in a while. Btw, It's Black Mamba.
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SOCAL DIESEL TRUCKS WWW.SOCALDIESELTRUCKS.COM MCFOO RACING WWW.MCFOORACING.COM -"Casper" 2005 GMC LBZ ECSB Best Time: 10.59 @ 128 (Kat Driving) -"Black Betty" 2006 GMC LBZ CCSB Best Time: 12.70 @ 104 - The McRatsMike L Trans w/ Goerend "G" T/C Engine #2 -"Bender" 1978 Chevy C30 4x4 454/TH400 Currently Soon...Kodiak LBZ / Ally 2000 5 speed. and a bunch of different things to come... ![]() -"Mobile Marriott" 2006 Fleetwood Gearbox 300fs McFoo Racing mobile command center ![]() -"The Xploder" 2002 Ford Explorer XLT/SE (Sucks Edition) Daily Driver. ![]() Thanks to all that helped me - Mike L @ Inglewood Transmission - Dan & Drew @ PPE |
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