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v-6 3.0L Ford Ranger 185K. since the last cylinder change put 60K miles on the motor. had a water hose blow and it got hot. getting a generic code misfire code on cylinder #5 only between 65 and 70 mph. the code doesn't happen when i drive slow under 65. I have replaced the spark plugs and wires have a coil on order if the coil does not fix it what else could it be?

going to swap the fuel injectors from cylinder 5 and 6 to make sure the fuel injector isn't the problem.

will do a pressure test to see if its a burn valve again.

is this motor worth fixing with 185 k miles on it or should i replace the motor?

P.S
Thanks for all your help over the the years and thank you for your sons service to the U.S.A.!

I'd replace the motor, since it overheated odds are at least the head gasket is blowing near #5

thanks

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