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Thread: misfire

  1. #1

    Default misfire

    i got a 97 silverado 5.7L and the other day the ECM B fuse blew and it cut the fuel pump off. i changed the fuse and it fixed it but now when im accelerating or cruising it misfires. if i put it to the floor all 8 kick in again. just rebuilt the motor a couple thousand miles ago

  2. #2

    Default

    Did you happen to replce the fuel filter after the rebuild?
    Pavement sucks... :grrrrrr:



    1994 K1500 4x4 Ext. Cab
    PCM chip and Xenon 8000k bulbs
    350cu.in bored over .050"
    balanced Crank, 10:1 compression
    Flat top pistons,cam,ported heads
    Option Racing Cold Air Intake
    Holley Throttle Body Spacer
    Accell Igition, 45kv coil
    FloTech Headers, no CATs, dual exhuast
    Goodyear Silent Armor A/T 305/70-16
    Pioneer SupertunerIII CD USB Bluetooth
    Kicker ZX200.2 ZX Amp
    Kicker Audio COMP 10" Subwoofer

  3. #3

    Default

    no i didnt but why did it start doing that after i put a new ecm fuse in it?

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