通用系别克雪佛兰凯迪拉克 喷油嘴 12613411 替换件

For engines in General Motors vehicles (Buick, Chevrolet, Cadillac) after 2000, the intake manifold or cylinder head direct injection position, fuel injectors (OEM 12613411, compatible with 28263842) precisely atomize fuel before injecting into the cylinder, directly affecting power output and fuel economy. Installation difficulty medium; recommended labor time about 1.5–2 hours; be sure to replace seals and depressurize the fuel system. When you experience rough idle, weak acceleration, abnormal fuel consumption, or check engine light on, this is usually a signal of injector clogging or leakage.