Rep Power: 0

Need a little help here with an overheating mystery. I have a 93 Civic Dx, traveling 90 miles round trip M-F. The temperature gauge only fluctuates when Im stopped in traffic; if im moving everthing is good. I replaced the thermostate, bleed air out of the system twice. Tested the fan (it works) then wired it to stay on. Car made it home yesterday but this time was different it got hot. I gotta find the source of the problem and fix it. This is my gas/money saver gets 32mpg hwy. Last important detail is that this overheating problem has been going on for 1.5 months, Ive been just ovoiding traveling during traffic hours.