ENGINE SURGE on 2009 Chevrolet Silverado 2500 HD

I GET A ENGINE SURGE WHEN SLOWING DOWN IN TOW MODE. IT GOES FROM 1500RPM TO 2500 TO 3000 RPMS. FOOT IS OFF THE GAS PEDAL, JUST SLOWING DOWN TO A STOP. IS THIS NORMAL

NO, this does not sound correct. I would check your Power Train Computer for codes and have the Engine Data scanned for errors. Do you have a Service Engine Soon Light or Check Engine Light on, perhaps?

http://repairpal.com/check-engine-light

http://repairpal.com/directory?address=70570&car_brand_names=Chevrolet
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