In article .com>,
wrote:

> Clogged system
> Failing water pump
> Bad thermostat

Probably not the water pump. Assuming you have no coolant loss, check
the fan(s) as well. My similar symptoms were caused by an intermittant
fan motor, which had a dead spot on its commutator.

---
Lanny Chambers
'94C, St. Louis
http://www.hummingbirds.net/alignment.html