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  1. #1

    Default cold and warm performance

    hey out there
    i put in a new fuel pump,fuel lines,temp sending unit,and the truck still runs better when its cold. the gas pedal feels less responsive when its warmed up.any thoughts?

  2. #2

    mfleetwood's Avatar
    Join Date
    Jul 2010
    Denver, CO
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    Welcome to the Club! Can you provide some details about your ride? Year, model, etc.? Although I still would not be able to answer your question, as I am not that mechanically inclined, but it would helpful to those that are so they can provide you some suggestions and/or possible solutions.

    Mike (Denver, CO) - 2008 Sierra 1500 Z71 SLE 5.3L 4WD

    SUSPENSION: Rancho 4" Suspension Lift; Rancho RS9000XL Shocks; Rancho Skid Plates; Rancho MyRide Wireless Shock Controller;
    BFG All Terrain KO 315/70/17
    DRIVE TRAIN: 4.56 Gears; Detroit TrueTrac Differential; True Cool 40k Transmission Cooler
    PERFORMANCE: DiableSport Predator Tuner; Custom Tuned by Diablew; Magnaflow Exhaust; AFE Cold Air Intake
    ELECTRONICS: Kenwood DNX6180 Touchscreen; Subthump box w/10" Kicker; Driver Information Center (DIC); Rear View Camera
    ACCESSORIES: Westin Brush/Grill Gaurd; Westin Nerf Bars; Truxedo Tonneau; 20% Tint; Tow Mirrors w/Heat & Signals

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