Yes, they share the same gasket and bolts.
Drivers side of the engine in the exhaust pipe below the exhaust manifold.
In a 1998 Jeep Wrangler, the oxygen sensor is located in the exhaust pipe. It can be found just below the junction of the exhaust manifold and the exhaust pipe.
Yes.
Upstream is just after the exhaust manifold, and downstream is after the catalytic converter
under the intake manifold-its most likely a header assembly on 4.0 engines. Steve
it is located on the drivers side of the engine under the air intake manifold
on a 4.0 it should be under the exhaust manifold
it will make a puff puff sound while idling.
Its a bit of a job because it is held on by the same bolts as the intake manifold, and the easiest way is to remove them both, otherwise the rusted exhaust bolts holding the tubing to the manifold is the worst.
The intake manifold, on your Jeep grand Cherokee, is located on the front side of the engine. The exhaust manifold is bolted to the engine.
Yes, the studs break off of the head at the ends of the manifold.