How long has it been doing this? Before or after parts change?
How long ago did you change those part?
Did you change those parts all at the same time? One thing after the other chasing this overheat?
What driving conditions cause this fluctuation. Freeway only? Stop and go/idling only? All the time as soon as it warms up?
Does running the heater change it any?
91 YJ Sahara, 4.0L, AX-15/NP231, D30/D35@3.07
12 Cherokee 4x4,3.7L,42RLE/MP1522, D30Mfirstname.lastname@example.org
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