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Old 08-07-2009, 12:48 PM   #1
getek20
Scooby Newbie
 
Member#: 43560
Join Date: Sep 2003
Chapter/Region: Tri-State
Location: Upstate New York
Vehicle:
2009 Lancer Ralliart
Black

Default Hesitation between 20mph and 40mph

I own a 2006 WRX Limited with 4EAT and 67k miles on the odometer. I have been experiencing hesitation between 20mph and 40mph. I haven't noticed any hesitation when downshifting. It only seems to be during upshifts. I even noticed that 0-60 times are consistently 5/10ths of a second slower in this car than my 2003 WRX with 4EAT which had the same amount of miles as I have now.
I've disconnected the battery and reset the ECU, but that didn't fix the problem. The dealer suggested a tune-up and a complete fuel system clean. Is this necessary? What could the potential problem be?
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Last edited by getek20; 08-07-2009 at 01:00 PM.
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