The 4.0 engine was designed with a Controlled Crankcase Ventilation hose - the smaller at the rear of the valve cover, and a front air inlet hose from the breather. It moves crankcase gas into the intake manifold through the small hose, and has no PCV.
It is inside the transmission, on the valve body.
Top driver side of the bell housing.
The Jeep Grand Cherokee did not come out until 1993. It used a 5281090 Mopar filter.
Jeep dealer.Jeep dealer.
An AW4 transmission from a 1991 Jeep Cherokee will not fit into a 1988 Jeep Cherokee. The transmissions in the varying years do not appear to be compatible with one another.
There wasn't a 2003 Cherokee. The last Cherokee was 2000.
No.
Yes you can
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.
The flow back check valve is in the pump.
A 1993 Jeep does not have a transmission modulator valve.
No