I had a full tune-up, new timing belt, plugs, rotor, etc, and also a new water pump added at this time. I had it done around 110,000 miles, I have about 140,000 on it now, when should I take it in for another tune-up, at what mileage? thanks guys

 

You need new plugs (if they are copper and not platinum) already, so you could get that done now. You should also change your transmission fluid at every 30k, possibly think about changing your coolant also, just look in your owners manual for the maintenance schedule and figure out what you have done already, then make a schedule. Your dist cap and rotor can wait another 30k, and your timing belt/water pump should last until close to 200k.