cooling ?'s

[wireweld]

My low coolant light goes on and off, but I am not low on coolant. Then the check gages lite comes on and my temp gage goes way over to hot and then it comes back to normal. This just started about 2 weeks ago. Any suggestions?
If it is the sender, where is it located?

[99gmccrew]

Sounds like it might be a sticking thermostat. Have you changed it since you've had it?

[Dvldog 8793]

How long does the process of "check gauges light, temp max out, temp back to normal" take?

[rjschoolcraft]

It could have an air bubble.

[wireweld]

Just to let everyone know that the problem with my temp gage turned out to be a blown head gasket.