Richard J Kinch wrote:

Any repair and service biz is a classic case of "information asymmetry",
with regards to tricks played against the consumer. They experts at
practicing the scam, you're just an occasional amateur stumbling into
their expertise.

Mac sells a tool to remove intake studs on a saturn so you can pull the studs out of the
aluminum head, then slip in a new intake gasket and put the studs back in while charging
flat rate for a job that the mechanic was supposed to leave the studs in place and remove
the intake the hard way.

The aluminum head wasn't designed around screwing studs in and out.

I'm sure there are many horror stories, I just know about that one.

Wes