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exhaust?
Was an intake manifold gasket for me.
There are 2 heated exhaust gas oxygen sensors , 1 screwed into the outlet on each exhaust manifold on a 1993 Ford Ranger 4.0 L .
The only permanent repair is to replace the gasket with a new one.
the upstream O2 sensor is directly below thethe exhaust manifold flanges, above the catalytic converter. The downstream O2 sensor is in the exhaust pipe. Disconnect the electrical connectors and screw it out
two inch
Exhaust manifold.
Just the thermostat and the gasket.
replace head gasket
On the drivers side of the engine near the exhaust manifold.
you replace it take the old one off and replace it with a new one
Bank 1 is the passenger side of the engine in your 3.0 liter Ford Ranger Sensor 1 ( upstream sensor ) is in the exhaust before it enters the catalytic converter ( either in the exhaust manifold or exhaust pipe )