What precautions should I take when removing spark plugs on my Dodge Neon? Is it necessary to disconnect the battery before doing so? (I don't want to disconnect the battery if I don't have to) I know I will need to buy some special tools, since the plugs are recessed down into the engine; can any one give me the correct description of the socket and extension I will need to buy to do this?
My engine has over 150K on it, and I suspect one of the plugs is fouling, evident in some hesitation at low RPM (1K to 2K RPM).
During the winter, my check engine light was on most of the time (I forget exactly what the code was, but they suggested I get a new gas cap first; it is the same code you would get if you ran your car without a gas cap) but since the nice weather came, it goes off & comes on sproadically. Usually it goes out after some highway driving at higher speeds. This is what makes me suspect a fouling spark plug.
Thanks to all for any help/advise you can offer.
Doug