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The oxygen sensor for bank 1 sensor 1 for a 2000 mercury mountaineer is on the cylinder #1 side.
It is mounted to the rear of the throttle body.
Mass air flow sensor is mounted after the air filter.
Its mounted on transmission.
on cylinder 1 side mounted on the manifold
The MAP sensor is mounted at the rear of the left-bank (front) cylinder head.
It is mounted in the air cleaner intake snorkel.
Yes
Bank one is on the side that the master cylinder is on bank two is the opposite side of the master cylinder
On the firewall near the brake master cylinder.
do you mean maf sensor if so it is located on top of air cleaner
Check the pressure sensor on the master cylinder - very common.