Mercury Repair Questions? Ask a Mechanic for Answers ASAP
The "lunging" is the result of the transmission going bad - slipping when line pressure is low. You might be able to get by as is for a while, but it will eventually fail. This condition can be confirmed and repaired at any qualified transmission shop.
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Welcome, I'm Chris (aka Moose) I prefer to work when others don't, I am here around lunch and after dinner till after midnight.
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