Mechanics

TROUBLE CODES

2003 GMC Sierra

Transmission problem
2003 GMC Sierra V8 Four Wheel Drive Automatic 145000 miles

My truck (a duramax diesel with a programmer installed) has recently started sending out trouble codes and acting really sluggish if I push the accelerator to the floor. The codes are P1093, p1621, p2227, p2228. I originally thought it was my transmission going bad but with the codes starting to come out im not sure. Do you have any thought on the matter?
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Vexar
January 7, 2008.



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