Today I had a problem with the jeep the first day after getting it together. I was driving and all of the sudden the jeep started steaming. I pulled over to find out that the top of the radiator had cracked, but the cap didn't release any pressure. I got it home since I was close and after I cooled it down for a little while. I found out that the thermostat was stuck closed. The thing that I am wondering about is that the guage never went pass 210. The guage seems like it works properly cause it starts at cold and as it warms up goes to a normal operating temp. I was told you could ground out the harness and it is suppose to make the guage go up. I tried that and nothing moved. I guess hopefully I didn't hurt anything internal now. If anyone has any ideas on how to make sure my guage is working properly let me know. Also I just wanted to make sure that the sending unit for the guage is located on the thermostat housing too...