Issues Starting the Engine Another sign of a bad throttle body temp sensor is problems starting the engine. Regardless, an overheating engine leading to starting problems should be investigated as soon as possible by a certified mechanic.Click to see full answer. Also asked, what happens when throttle body goes bad?If the throttle body isn’t supplying enough air to the engine, you may see a lack of acceleration power and poor engine performance. 3. Your car idles poorly: The amount of air entering the engine affects idle speed and quality. A faulty one can cause rough idle, or it can cause the engine to race at idle. is it safe to drive with a bad throttle body? This is not one of those car problems that you can ignore. If you have a bad throttle position sensor, your car will not perform well or safely. Driving with a bad throttle position sensor may also cause problems in other related systems in your car, which will mean additional repair bills. Correspondingly, what are the symptoms of a bad throttle body? When a throttle body is not functioning correctly, some noticeable characteristics may be poor or very low idle. This can include stalling when coming to a stop or very low idle after starting, or even stalling if the throttle is quickly pressed (resulting in the throttle body plate opening and closing very quickly).Do throttle bodies wear out?A bad throttle body may cause stalling in the vehicle, misfiring, electrical problems, high or poor idle, and improper throttle stop. Issues such as grim and dirt deposits or vacuum leaks can also cause problems to the throttle body. Down below you will find some further information about throttle body diagnostics.
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