Where is the intake manifold check valve located on the Buick Excelle?
2 Answers
It is located beneath the intake manifold, close to the engine block, positioned below the No.3 cylinder injector. Below are the detailed specifications of the Excelle: 1. Vehicle Positioning: The Buick Excelle is a compact car under the Buick brand, with dimensions of 4609mm in length, 1798mm in width, 1464mm in height, and a wheelbase of 2640mm. 2. Powertrain: The 1.3L turbocharged engine in the Buick Excelle delivers a maximum power of 120kW and a peak torque of 230Nm. This engine reaches its maximum power at 5500 rpm and achieves peak torque between 1800 to 4400 rpm. It features a 48V mild hybrid system, multi-point fuel injection technology, and utilizes an aluminum cylinder head and block. This engine is paired with a 6-speed automatic transmission. The 1.5L turbocharged engine produces 113 horsepower and 141Nm of maximum torque, with maximum power achieved at 6000 rpm and peak torque at 4400 rpm. This engine incorporates DVVT technology and multi-point fuel injection, using an aluminum cylinder head and cast iron block. It is also mated to a 6-speed automatic transmission.
I remember on the Buick Excelle, the intake manifold check valve is usually located at the front of the engine compartment, near the junction of the intake manifold and throttle body. It's installed on a small port of the crankcase ventilation system, looking like a small plastic or rubber cap. This component controls the one-way flow of exhaust gases to prevent backflow that could affect engine performance. During routine checks, if I notice unstable idling or difficulty starting, it's likely due to carbon buildup or blockage in the valve. I always turn off the engine and wait for it to cool before carefully disconnecting the hose for inspection. Regular cleaning is recommended, with replacement every two years or so to avoid major issues like decreased fuel efficiency or excessive emissions.
