This has been happening for the past couple months. It normally runs at aroun 185 but when i pull up to a stop light, or am just idleing for a little i can watch the temp guage go up past 210 in less than 30 seconds. When i get going again and get the wind blowing into it it cools back down to 185. What's the deal?

 

are your fans turning on?

 

my old 96 ta ran at around 210 in the summer. maybe it was only cause it was LT1, but i was told it was normal as long as it didnt get to around 230-240, then you have a problem.

 

I had that happen to me when I had air in the system.

Could be several things:

Normal operation, vehicle has a low-temp thermostat but fans don't come on till 210-220.

Water pump is having problems and is only moving coolant at above idle rpms.- or other restriction causing flow problems at idle.

A leak that is letting air into the system.

If you can actually see the gauge moving up, it's probably the last item. I could watch the gauge go up to 3/4, then drop like a rock when some coolant finally came through. It was my water pump gasket. I'm glad I don't have that anymore. I know that can't be good on the heads or gasket.

 

It's supposed to do that... the fans don't kick in at idle until 210 degrees or so.

If this bothers you, install a manual fan switch.

 

k thanks a lot guys

 

I'll sell you a manual fan swith for $25.