were is eatc module located
it's in the dashboard~
It's the peice with all the buttons on it. the eletronics are behind the buttons like a stereo
BEFORE YOU SPEND ANY MONEY: Check the vacuum supplied to the EATC unit. There's a vacuum hose from the intake (usually) to a "T" with a check valve and a vacuum reservoir. Usually, a register concern like yours is a vacuum problem and not a control head problem.
Electronic Automatic Temperature Control...not a greasy spoon off the highway...EAT-C~
Looking for a Used Grand Marquis in your area?
CarGurus has 2,571 nationwide Grand Marquis listings starting at $1,300.
Search Mercury Grand Marquis Questions
Mercury Grand Marquis Experts