![Bad Fuel Injector Seat, Bad Seal Symptoms, O Ring Leak, Diesel Fuel in Oil, Caterpillar Injectors - YouTube Bad Fuel Injector Seat, Bad Seal Symptoms, O Ring Leak, Diesel Fuel in Oil, Caterpillar Injectors - YouTube](https://i.ytimg.com/vi/XIHNEgK3OuA/maxresdefault.jpg)
Bad Fuel Injector Seat, Bad Seal Symptoms, O Ring Leak, Diesel Fuel in Oil, Caterpillar Injectors - YouTube
![Tracking down chevy vacuum leak. I ran a smoke test and found smoke coming from right under the fuel injectors. Pretty confident it's not the injector o rings since I've changed them Tracking down chevy vacuum leak. I ran a smoke test and found smoke coming from right under the fuel injectors. Pretty confident it's not the injector o rings since I've changed them](https://preview.redd.it/s1hpjqc7ehv51.png?auto=webp&s=09cc51d4e7f8f4cc6d735bc90bf648d91d33d376)
Tracking down chevy vacuum leak. I ran a smoke test and found smoke coming from right under the fuel injectors. Pretty confident it's not the injector o rings since I've changed them
![engine - Injector leaking/seeping clean diesel over nut/body - Motor Vehicle Maintenance & Repair Stack Exchange engine - Injector leaking/seeping clean diesel over nut/body - Motor Vehicle Maintenance & Repair Stack Exchange](https://i.stack.imgur.com/LiWjA.jpg)
engine - Injector leaking/seeping clean diesel over nut/body - Motor Vehicle Maintenance & Repair Stack Exchange
![toyota - Best practice for replacing fuel injector o-ring? - Motor Vehicle Maintenance & Repair Stack Exchange toyota - Best practice for replacing fuel injector o-ring? - Motor Vehicle Maintenance & Repair Stack Exchange](https://i.stack.imgur.com/mXmhT.jpg)
toyota - Best practice for replacing fuel injector o-ring? - Motor Vehicle Maintenance & Repair Stack Exchange
![Amazon.com: Fuel Injector O-Ring, Diesel Rail Leak Repair Kit Tool Rubber O-Rings Injector Seal Fit for Ford 6.0L Powerstroke : Automotive Amazon.com: Fuel Injector O-Ring, Diesel Rail Leak Repair Kit Tool Rubber O-Rings Injector Seal Fit for Ford 6.0L Powerstroke : Automotive](https://m.media-amazon.com/images/I/61PaKtejXFL._AC_UF1000,1000_QL80_.jpg)
Amazon.com: Fuel Injector O-Ring, Diesel Rail Leak Repair Kit Tool Rubber O-Rings Injector Seal Fit for Ford 6.0L Powerstroke : Automotive
![engine - Injector leaking/seeping clean diesel over nut/body - Motor Vehicle Maintenance & Repair Stack Exchange engine - Injector leaking/seeping clean diesel over nut/body - Motor Vehicle Maintenance & Repair Stack Exchange](https://i.stack.imgur.com/qbbj8.jpg)