I too have had the same problem, and it is getting fixed now. I am trying to find some way of geting some financial restitution from Saturn. My car is a '99 SL with 99,500 miles...all highway, and I have done the regular maintenance at the dealer (so they have all the records). I just made the last payment last September. I have had the car 4.5 years, and now this is breaking my wallet. Replacing the cylinder head is going to cost $2500. They just called me to tell me after they replaced the head, they found out my radiator is clogged (probably as a result)!!! more $$$...gotta replace the radiator. Their doing me such a big favor by reducing the price on the radiator, which is the least expensive of my concerns. B4 I knew about the radiator I was debating taking the repair cost and using it towards a downpayment for a new car. Which, BTW, would definately NOT BE A SATURN!!! The older models had many engin problems, including cracked cylinder heads and Saturn extended an engine warranty on SL models through 1997, with 1.9L single overhead cam. That's the same engine I have, but unfortunately that warranty does not apply to us.
If I don't succeed in getting financial assistance, I hope that at least my post hear will contribute to a buildup of complaints that may help out other Saturn owners.
.....
.... I should've bought the Honda!!!