LC9 5.3 l gmc engine
#1
LC9 5.3 l gmc engine
I have a 2007 Yukon Xl 4x4 that blew the engine. I ordered a replacement LC9 engine that was removed from a 2008 Chevy Avalanche. The mechanic used parts from my old engine ie manifold,oil pan etc and installed engine however it will not start. Did I get the wrong engine or will this work? Any suggestions would be very helpful as I know very little about what to do at this point. Thanks to anyone that can help.
#2
Senior Member
I think you have the wrong reluctor ring on the crank. 07 was the las year of the 24 tooth ring and in 08 they went to a 54 tooth ring and changed it to a grey crank sensor from a black sensor. To make it work I think your going to need to program the PCM to 08 specs and make sure it has the grey crank sensor.
#5
Retired
Where were you 2 months ago when I was doing my V8 swap?
__________________
Retired Administrator
2002 *-10 5.7 V8
2023 Jeep Rubicon Diesel
Retired Administrator
2002 *-10 5.7 V8
2023 Jeep Rubicon Diesel
#6
Senior Member
I was watching you finish installing your vortech motor! I think you made the right choice going with the vortech over the LS motor. If you went with the LS motor you would have to deal with a whole different harness, coolant lines, AC lines and different mounts.
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wes104
GMC/Chevrolet Truck/SUV
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04-07-2014 09:57 PM