If it just clicks and won't unscrew all you need to do is pry the top half of the cap off, and unscrew the bottom half with a pair of pliers.
4 Qt of ATF 4
On my 1992 Jeep Cherokee Laredo it is on the front right of the engine. There should be a picture of an oil can on the cap with the words fill oil here or something along that line on it.
13mm or 14mm
Front driver side of the engine, under the black screw on cap.
the bottom of the engine
At the rear of the intake manifold right next to the distributor cap.
10w30
The transmission oil line from a 1991 model of a Jeep Cherokee will fit a 1988 model of a Jeep Cherokee because the transmission oil line fits all Cherokee models that were made between 1987 and 1996.
In the oil pan
check pcv it maybe plugged
Yes
It should! But it will not last very long.
About 5
Hp 2004
10w30
4 Qt of ATF 4
The oil sensor is located above the oil filter next to the distributor.