What Causes a Car to Have No Idle Speed?
1 Answers
Here are the reasons why a car may have no idle speed: 1. Low car battery voltage: Use a multimeter to test the battery voltage. If it is below 10V, replacement is recommended. If it is around 11V, it can be used temporarily, but prepare for replacement. Above 12V is acceptable. 2. Check for carbon buildup: If the car has run about 20,000 KM, focus on inspecting and cleaning the throttle body. 3. Spark plugs: Inspect, test, and replace the spark plugs if necessary. 4. Control unit: The control unit receives incorrect signals and issues wrong commands, leading to inaccurate idle air intake control and abnormal engine combustion. 5. Idle air: A malfunction in the idle air actuator may cause inaccurate idle air control.