I started driving and the temp warms up slowly like usual, but the needle goes up to the right side of the '0' in 210. Then redlines. I turned off the Jeep, let it sit for 2 minutes and restarted. The temp needle stayed at the right side of the '0' in 210 the rest of the way home.
There are no leaks. I have no loss of fluid, reservoir tank is full.
I thought about that. It is about 3 years old as is the radiator.
I did burp it, but still have the issue.
I do have a new Stant thermo that I drilled a hole in ready to be installed. I just didn't want to start trying one thing and have it not fix it. I'd rather do it right the first time and not tear it apart again and again.
Drove it a little today, temp started going up VERY slow. Then when it was about 150ish the needle moved visibly faster past 210 to the right of the '0'. It hovers there and then jumps to the beginning of the redline. I pulled over and sat for a minute then continued and the temp fell to the right of '0' again. It moved to beginning of redline and then about 10 seconds later fell back to the right of '0'. No leaks, reservoir is full and the heater throws heat.
Any help or ideas please? I'm desperate. It's my daily driver and I need it ASAP.
Replaced water pump and refilled antifreeze. Idled for 20 mins without temp going over 210. I'm about to road test it.
I also noticed 4 small bolts that sit below the water pump and just above the crank shaft pulley were loose to the point that I could hand tighten them. So I went ahead and hand tightened them as well as cleaned up some gunk that was around the area.