I have a 95 cherokee. The check engine light has been on for a week now. It's gone off briefly a couple times, then come back on. A general idea of things I should start looking for would be great. thanks

 

Take it to any parts store and have the code read. That will tell you where to start to look why the cel is on.

 

Follow this procedure to pull codes on your 95. Post the exact code numbers here for comment. You must have the codes to proceed. Anything less is pure guesswork.

And we also need to know if you have any SYMPTOMS to go along with the check engine light/codes.
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Retrieving OBD codes on the Jeep Cherokee (XJ) OBD1 Models: 1991-1995

1) Start engine (if possible). Move transmission shift lever
through all positions, ending in Park. Turn A/C switch on and then off
(if equipped).
2) Turn engine off. Without starting engine again, turn
ignition on, off, on, off and on within 5 seconds. Record 2-digit
fault codes as displayed by flashing MIL.
3) For example, fault code 23 is displayed as flash, flash,
4-second pause, flash, flash, flash. After a slightly longer pause,
other codes stored are displayed in numerical order. When MIL begins
to flash fault codes, it cannot be stopped. Start over if count is
lost.

NOTE: A "5-5" will always occur to signal the end of the sequence. Some will flash the "1-2" code indicating a recent battery disconnect even if you haven't done it. Ignore these two codes, and mark down all others.