> We have a '93 JGC Limited with 90,000 miles. With ambient running 100
> to 105 lately, the Jeep runs at almost 210 degrees while moving at
> least 40 mph. If I do a lot of stop and go driving, it will go over
> the 210 mark. I let it sit and idle yesterday for about 10 minutes
> with my wife in the car, and when I returned it was just below the red
> line. As soon as I got the car moving above 40 mph, it came back down
> to 210. My thermostat is less than 6-months old. Original water
> pump. Seems like it has always run pretty hot. I have had to turn
> the A/C off when in Phoenix at about 115F. The engine pinged so back
> I thought it would blow up. Turning off the A/C stopped the pinging,
> but darn near melted us.
>

Thanks, I guess the mechanic wasn't full of crap.