Just downstream after the exhaust manifold
Check up by the manifolds or anywhere before the catalytic converter.
look right before the converter unless your pipes has been changed
The oxygen sensor is in the top center of the rear exhaust manifold.
They are supposed to be replaced every 60,000 miles and are located underneath the chassis by the catalytic converters
below exhaust manifold... left hand side... were the manifold joins into 1 pipe becoming the exhaust
Most oxygen sensors are located on the exhaust manifold or just after the manifold on the exhaust pipe(s). Your truck probably has two oxygen sensors, one on each side.
A 1986 ford van does not a crank shaft position sensor,, it uses the pickup in the distributer
It is in the exhaust system before the catalytic converter.
On the right side, beneath the intake piping that leads up to the throttle body, the O2 sensor is sticking out of the side of the exhaust manifold. No, it's on the left side, the driver's side.
on throttle boyy in corner