Buy online for free next day delivery or same day pickup at a store near you. Identify signs of a bad evaporative leak detection pump affecting emissions control Learn about symptoms, repair options, and get expert help at repairpal.com. The leak detection pump is a vital component in a vehicle’s evaporative emissions control system (evap), responsible for identifying and signaling fuel vapor leaks By pressurizing the evap system and monitoring for any drops, the leak detection pump helps ensure that fuel vapors remain contained and are routed to the engine for combustion instead of escaping into the atmosphere What is a leak detection pump used for
Many modern vehicles, particularly those manufactured by bmw and other european and japanese automakers, utilize a leak detection pump (ldp) to pressurize the evap system for diagnostic purposes This pump introduces pressurized air into the evap system to check for leaks. Bosch leak detection pumps ensure the evaporative emission system (evap) is functioning correctly Leak detection pumps provide pressure so the system can be checked for leaks while other evap system valves are closed A faulty leak detection pump will cause a check engine warning and is an emission relevant component.
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