Nov 122015
 

2005 Chevy Silverao
When going up a hill or when you seem to need more power, there seems to be a vibration coming from the motor, if I let off of the throttle, it seems to subside. Then back again if I’m going up a hill again when it looses power.

  One Response to “2005 Chevy Silverado Ext Cab V8”

  1. This sounds like a classic description of an engine misfire. When was the last time you had a tune up? If its been a while now may be the time you were waiting for. Replace the spark plugs and wires if applicable. Generally once the misfire continues long enough it will set a code in then Engine Control Module and illuminate a check engine light on the dash.

    If the check engine light is on, you will need a code reader in order to pull the codes yourself or stop at just about any local parts stores and they will assist you for free. Once you have obtained the codes post them below. Most likely a failing ignition coil but no sense in guessing which one.

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