Hi All. I’ve got a Gen 1 Prius question. I have a GEN 1 in the shop that has weird shutter or vibration that seems to happen mostly when the HV battery is charging. I posted a short video where you can hear the sound. I just rebuilt the HV battery, not only replacing the bad modules but also balancing and load-testing everything. It was doing this before the rebuild, too. There are no codes showing up. I checked it with a Snap-on Solus scanner, and the live data looks normal for the most part. The only thing that pops up now and then is a misfire code, but it’s not consistent and jumps between cylinders, so I don’t think it’s engine-related. Does it when in park, at a stop and I can feel it when under a load. That’s why I’m wondering if it could be something electrical in the inverter or transmission area. Anyone run into something like this or have any ideas on what to look at next? Thanks! https://youtube.com/shorts/wSDH5oYzsyo?feature=share Byron
Any vibration while charging in Park could very likely be due to the misfire. First steps: clean MAF sensor, check/replace air filter, check for vacuum leaks. Hope that helps cure it for you.
