A bad freeze plug will leak coolant and cause the engine to overheat.
Chat with our AI personalities
Sounds like a real bad idea. A leaking freeze plug is usually a sign of a very neglected cooling system. You need to replace the leaking plug with a new one. Unfortunately there is probably corrosion throughout the whole cooling system. You will probably have other leaks soon.
It will be a bad cap, bad plug wire or bad spark plug See more at sterndrives.com
It could be many things '' It could be a bad spark plug, It could be a bad plug wire ,It could also be a bad ignition coil module .
Could be, a bad spark plug(s), a spark plug wire(s), a bad distributor cap, a bad rotor, a vacuum leak, bad fuel injector(s).
P304 means misfire on number four cylinder. Can be bad spark plug ,bad plug wire,or bad fuel injector. could also be loose plug wire or injector wire. How many miles since tune-up ?