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car is 94 Saturn SL2 twin camp when i press braks my car is shoting down n all my lights in the back are on when u press break n idk what 2 do ?????????? help
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Your problem is not the temperature sensor. I had this problem with my 94 SC2 and it turned out to be a ruptured diaphragm in the brake booster. The brake booster is connected to your intake manifold and uses the vacuum from it to make pressing on the brake pedal easier. When this diaphragm tears you get an air leak that lowers your intake manifold vacuum and stalls the car. If you get your head down by the brake pedal with the car running and depress the brake pedal with your hand you will probably hear a slight hissing sound. Replacing the brake booster is kind of a pain as you have to remove the brake master cylinder and the battery and requires you to bleed the entire brake system at each wheel to get the air out of the system when you are done. You can pick up rebuilt brake boosters at most auto parts stores for less than $100.
Good Luck
The lights in the back should be on when you press the brake. That's the law and is normal operation.
You should always state you vitals when asking a question. If your car is a manual then my next question would be are you putting in the clutch pedal when you brake. The Idle Air Control valve controls idle rpms and may be fualty or dirty. Clean your throttle body thoroughly and see if you have an improvement.
While you under the hood, replace your Engine Coolant Temperature Sensor also. This sensor is VITAL to many systems of the car and being a '94 it is more than likely cracked sending false data to the PCM. Your car has two sensors, you want to replace the one with the two wire connector.
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