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TOPIC: Brian 2003 Chevrolet Suburban 5.3 gets grooved

Brian 2003 Chevrolet Suburban 5.3 gets grooved 13 Aug 2011 22:12 #1

  • AronCheek
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Brian Andreasen looking for more mileage out of 5.3 2003 Suburban. Engine was very shaky

before groove, now it is smooth. Has very good throttle response and pickup also.

Waiting to talk with owner this evening about modification.
Aron Cheek
Gadgetman Nebraska
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Re: Brian 2003 Chevrolet Suburban 5.3 gets grooved 23 Oct 2011 22:03 #2

  • mill2566
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Have you got any updates on gas mileage? My 2004 5.3 did not show an improvement in mpg.
David Kemppainen
Gadgetman Chesaning, MI
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Re: Brian 2003 Chevrolet Suburban 5.3 gets grooved 24 Oct 2011 01:39 #3

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GadgetmanNebraska here, Sorry, I have not heard back from the 3 5.3's I have done because they have all been in the field. They are farmers but I hope to hear from them soon.
Aron Cheek
Gadgetman Nebraska
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