问：我有305的1998 Chevy K1500。

嗨，谢谢您提出问题。您的1998年Chevy K1500卡车具有305的卡车，具有4L60E的变速箱。通过您所描述的内容，听起来像是扭矩转换器离合器（TCC）调节阀发生故障。通常，发生这种情况时，会出现检查引擎灯，当您扫描它时，它会发出代码1870。发生的是阀门摩擦其孔，导致泄漏，计算机看到了这一点。因此，计算机需要泵螺线管以最大程度地排出泵的压力。这将导致TCC滑倒，并从第一档到第二档。是的，您可以购买可以解决此问题的套件。我建议为TCC阀购买SONNAX品牌Spring套件来解决此问题。您无需卸下变速箱即可取下阀体，只需放下锅并卸下阀体即可。确保您不要松开检查球。 Also, when you buy the spring kit, buy a valve body gasket kit. When you remove the valve body, the gaskets will break. You will need to remove the gaskets and replace them with new gaskets. If you replaced the TCC spring with the new kit, depending on how long your transmission has been operated with this condition, you may have to replace the torque converter if you experience phasing in and out of lockup during overdrive. You can purchase the Sonnax brand TCC spring kit at any hot rod and performance place or JCWhitney online. You may be able to get the spring by itself on Amazon, but you will have to wait for shipping days. If you need any extra advice or help with installing the TCC spring kit, consider having an expert automotive technician from YourMechanic来您的家或办公室帮助您。