1994 Opel Vectra Repair Question
Opel Vectra Battery Problem
Your battery may have a dead cell. Check the voltage when you are trying to start the car as it should stay at 12 volts and not drop dramatically. You should not remove the thermostat as even though it is hot, it can be bad to run the car to cool at night and actually hurt the engine. It should be able to cool the car at any ambient temperture. Have you changed the antifreeze every 2 years. You must do this or it can cause contamination build up on sensors and keep your fans from running or send the wrong signals to the car computer. It can even make head gaskets fail. Anti-freeze not being replaced is one of the top reasons that I see custmoers having high dollar repairs for.
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