Hello,

During stop and go traffic for Christmas shopping, I noticed my car hit the red line. I tried to shut off the car when stopped to cool down, but I currently have vacuum issues im still working on, so it would not shut off for me. I could not get out and manually turn it off because I was in busy traffic.

It only hit the red line for maybe 30-60 seconds. And the car seems to be ok but I need to find out why this happened.

When driving on the freeway or basically over about 40 mph, the temp will stay correct. If driving slower, it will creep up to 100-110 degrees and then will fall back down to a good temp. If I am stop and go driving like in traffic, the temp will continue to rise until the car is shut off, or until it gets up to speed.

This really sounds like a water pump or thermostat issue to me, any ideas on what I should look on replacing first?

Thanks and happy holidays!