Overheating at highway speeds...???
Please let me know if anyone has had this problem...
I've got an 89 YJ with 122K miles..6cyl/auto...I have just put in a new radiator, new H2O pump, 180 thermostat, all new hoses/belts...If I just let the jeep idle, the temp reads at around 190 degrees...If I cruise around town going 50mph or under, the temp still stays around 190-200..When I get the thing out on the highway the temp shoots up over 210!! The timing is set correctly and the fan seems to be working pretty well...I heard if your ratio of coolant to water is off, that may cause it...But why is it only at highway speeds...Please help...Thanks
Tommy B. in AZ -