What could possibly be the cause of "electric static/shocks/electric wave" under the car hood? i put my hand near the engine or anywhere inside and it feel likes electricity goes into my body
Some cars seem to catch more static charge than others right along with some people feel a discharge that others don't feel at all, you can install a static strap to the vehicle and let it drag the ground and that should cancel out your static build up. Car Quest and Advanced auto parts usually stocks these or can get you one overnight.
Make sure the engine block and battery are grounded correctly. Put a negative voltmeter lead to negative battery terminal and positive to block of engine and/or bady and see if there is any voltage showing, while voltmeter is set to volts dc
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