How to fix a faulty EGR valve on the Sail 3?

1 Answers
SanHazel
07/30/25 10:12am
Start the engine and let it idle. Then, remove the vacuum hose of the EGR valve and connect a manual vacuum pump. Apply vacuum directly to the diaphragm chamber of the EGR valve. If the engine idle becomes unstable or stalls, it indicates the valve is functioning properly; otherwise, the valve is faulty and should be replaced. Below is an introduction to the Sail 3: 1. Introduction: On December 18, 2014, the SAIC-GM Chevrolet Sail 3 was launched, offering five models equipped with 1.3L and 1.5L naturally aspirated engines. 2. Configuration: The interior and exterior design of the new car remains consistent with the current models, with only adjustments to the configurations. ABS, EBD, and CBC functions are standard across all models, along with features like seatbelt warning. 3. Powertrain: The Sail 3 adopts a newly developed high-efficiency powertrain system, featuring a newly developed 1.5L DVVT engine and a 1.3L VVT engine.
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