Lumina Quits

courtesy of Bob, The Auto Answer Man

Dear Bob,
My dad has a '90 Chevy Lumina. After 20 minutes to a half hour the car will cut off. The only thing the we notice is that the temperature is above 120 on the car. Also in the winter the car will cut off after 30-40 min. but around Spring and Summer it's about 20-30 minutes. If you try to restart the car it cuts on but when you shift gears and take your foot off the break it cuts off. And depending on the outside temperature it cools down between 15-30 minutes. The only thing we believe it is, is that the radiator needs to be drained. Can you help us?

120 degrees, is that all? A car's normal operating temperature is between 165 and 195. If it is only getting to 120, then the thermostat is stuck open. A cold engine will not run correctly. Chevy truck magazine just did a good article, "Heat is your engine's friend and Heat is your engine's enemy". Really good. But that really has nothing to do with why the car stops. I bet that it is either a bad cam sensor or a fuel pump or a fuel pump relay.
Good Luck!
Drive Safely!
Bob, The Auto Answer Man

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