Why Does a Manual Transmission Stall at Low Idle Speed?
1 Answers
Stalling at low idle speed during startup is caused by insufficient driving skills or the use of substandard fuel. Below are some common reasons for stalling during startup: 1. Fuel tank: The fuel tank may be empty, or the battery voltage might be too low, preventing the starter motor from functioning or reaching the required starting speed. A faulty idle speed control valve, characterized by immediate stalling if no throttle is applied after starting. Clogged fuel lines. 2. Vehicle faults: Malfunctions in the vehicle's control system, though rare, cannot be ruled out. Blockages in the intake system, possibly due to foreign objects—check the pipeline from the air intake, air filter to the throttle body. 3. Fuel consumption impact: Repeatedly stalling and restarting the engine in a short period can affect fuel consumption. Frequent stalling during startup may shorten the engine's lifespan.