I'm not a mechanic but I own tools and a service manual.
About six months ago the car overheated. I replaced the water pump and thermostat. The car operated properly until now. The engine started to get hot again so I shut it off before it overheated. After it cooled down I tried to start
it. It would turn but would not run. I proceeded to change the plugs. It started, but it overheats. I repaced the water pump again with a NAPA pump. I also removed the thermostat but still have this overheating problem. I don't smell coolant in the exhaust.I also replaced the pressure cap. When I start the car now, it idles at 2200 rpm for a while then drops to about 600rpm and back up. All of a sudden it idles fine. But no heat and the temp slowly rising!
