It is relatively easy. I had to disconnect the exhaust pipe at the exhaust manifold to get the bolt out. (Mine is a 2.6) other than that it only takes a few minutes and you can do it.

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1990 190E 2.6
1996 Grand Voyager 3.3
1985 Mustang GT 5.0 5 SPD
1982 Suzuki GS 750T