Not really much to do. Spark plugs, air filter, oil and filter, fuel filter, and check that the ign. wires are good.
Have the high pressure valve checked.
About 150, up to 190 hp with an all-round tune-up.
Depends on which shop you take it to. Usually around $350 for plugs and wires, etc.
That would depend entirely on how out of tune it is before.
What Type and Year of Mercury? (I.E., 1997 Mercury Grand Marquis.)
Change the spark plugs, air filter, fuel filter, that's it. Of course, engine oil and filter.
Grand Marquis? Up under the dash passenger side
250+
The process is the same as for a 2002 grand am. And everybody knows how to do that.
its 120 mph 95 and up
1) weak fuel pump? 2) timing needs adjusting? 3) restricted fuel or air filter? 4) low engine compression? 5) needs tune-up?
I just got my 150,000 mile tune up for $318, in San francisco.