⚡ TESTING GM 4-Pin HEI Ignition Module, both on the bench and in the car. If your engine’s cranking but won’t fire — this is the first thing you should check. ✅ Power ✅ Ground ✅ Coil Negative Switching If it ain’t switching — it ain’t sparking. #IgnitionTrouble #NoSpark #HEIModule #GMTech #CarWontStart #DiagnosticsDoneRight Part 16 | My Mobile Mechanic / Auto Repair & Brake Replacement.

10K views · 116 reactions | ⚡ TESTING GM 4-Pin HEI Ignition Module, both on the bench and in the car. If your engine’s cranking but won’t fire — this is the first thing you should check. ✅ Power ✅ Ground ✅ Coil Negative Switching If it ain’t switching — it ain’t sparking. #IgnitionTrouble #NoSpark #HEIModule #GMTech #CarWontStart #DiagnosticsDoneRight | My Mobile Mechanic / Auto Repair & Brake Replacement. | Facebook

6.8K reactions · 559 shares | Jeremy and Jimmy of Carcass pulled this LS engine out of a junkyard to install into our Chevy Silverado C1500. But before they do that, they need to upgrade it with new parts thanks to RockAuto.com | PowerNation TV | Facebook

【CB1300SF】バイクメンテナンス マフラーガード交換！