my 00 silverado 2500 ls rpms jump about 200-500 after 50 mph but its not my transmission

2000 CHEVROLET SILVERADO
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ARAM22
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ive changed the fuel filter, fuel regulator
Nov 16, 2011 at 7:12 PM
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ASEMASTER6371
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how do you know it is not the trans?? the torque converter licks in around there and changes the rpm the amount you have said.

otherwise, did it have a code??

Roy
Nov 16, 2011 at 8:29 PM
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ARAM22
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because it doesnt feel like the transmission is pulling it feels like its coming from the engine. were do i get a code from, my check egine light is on
Nov 16, 2011 at 10:35 PM
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ASEMASTER6371
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autozone or pepboys

Roy
Nov 16, 2011 at 10:37 PM