2004 Jeep GC 2.7 maintenance question

[pcn1]

I seem to be rambling from wanting one jeep to another at the moment (well I am a bit of a petrol head !)
Anyway, a nice lookin 2004 Overland 2.7 with 90K is up for sale I might look at saturday.
Its says full service history (dont know if main dealer or not yet), but what maintenance issiues should i be checking for / thinking off at this mileage/age.
I know the blender door story, but Im thinking of the engine ?

Thanks

Edited by pcn1 on Thursday 29th September 16:15

Edited by pcn1 on Friday 30th September 08:49