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GMC Released #'s on the new 2014 5.3L V8 355 HP & 383 ft #'s torque increase of 40hp & 48 ft #'s of torque over the current 2013 5.3L V8

The new 5.3L EcoTec3 V-8
355 hp and 383 lb-ft of torque
Sierra’s new 5.3L offers a class-leading towing capacity of up to 11,500 pounds
EPA estimates of 16 mpg city and 23 highway with two-wheel...

Also Could be the speaker its self. My 03 Silverado with the factory radio had this issue and it was the drivers front speaker.. You can check if it is that by setting all your sound to the left and...

Has anyone seen or heard horse power and torque numbers for the new 2014 Silverado and Sierra motors yet???
3 ALL New Motors 4.3 V6, 5.3 V8 & 6.2 V8 All are Direct Injected..

Or does anyone want...

1983 Chevy Cavalier Wagon
1987 GMC 1500 Step Side
1988 Buick Regal
1995 Chevy Lumina
2002 GMC Sierra 1500
2003 GMC Sierra 1500
2005 Pontiac G6
2003 Chevy Silverado 1500
2009 GMC Sierra 1500

I have a 2009 GMC Sierra SLE with the AP8 Code. I purchased a key fob to hopefully get the factory remote start to work... It did not but when I try to start it with the key fob the parking lights...