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merrick4
Joined: 08 Nov 2006
Posts: 880
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| Posted: Sat Jun 14, 2008 10:00 pm Post subject: VNT Valve Calibration |
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(edit to correct name, its' a VNT valve not a VAT valve. I misunderstood him, [I'm in Miami])
Took the truck in to the mechanic due to truck hesitating. I thought it might be an injector going bad but he said the VNT valve needed to be calibrated.
I have no idea what that means, and the truck just started hesitated again but all of a sudden since he calibrated that thing my fuel mileage has jumped up. I have always got about 6.3 mpg but since the day he did that it is up to 7.3 mpg.
Is this somehow a coincidence? I am just now buying another truck and am wondering if I should get the same thing done (or checked out) for the new truck. It only cost me $175
Anyone know about this VNT valve and if it has anything to do with fuel mileage?
Thank you. |
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Mackmechanic
Joined: 21 Aug 2007
Posts: 44
Location: Spiro, Oklahoma
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| Posted: Tue Jun 17, 2008 9:50 am Post subject: |
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| Only thing I can think of is the VGT valve on the turbo. It will increase power, response, and fuel mileage when properly calibrated |
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