Gauge was sweeping so I took into the shop. They replaced water pump and thermostat and flushed the system. Their code reader said the EGR Valve and new plugs/wires were needed. I did that.
Took it for a ride;same problem. Tested the Coolant Temperature Sensor and it is OK
Took it back to the shop. They did pressure test and vapor test. Both tested OK.
Drove to work last week and the gauge pegged and I had to get a tow.
Any ideas.
Here is what I have posted on YOUTube. Some of the video may not be relevant to an experienced mechanic.
http://www.youtube.com/watch?v=uuaRtRDNzJA