I changed my fuel injector and now there a little engine vibration and the brakes locked up. It’s also smoking a bit

Hi, this is Bo, an auto expert on RepairPal's Car Genius team! After swapping out that injector on your Grand Caravan, it sounds like the van's throwing a little tantrum. The vibration and smoke? It might be that the new injector isn't playing nice, or there's a tiny fuel leak. Give it a once-over to make sure it's seated, and no lines are loose. As for the brakes locking up, it’s probably unrelated, but it's still super annoying! Double-check that your emergency brake isn’t on. If it’s not that, give the brake fluid a peek; sometimes, weird stuff happens. If you’re still wrestling with it, it might be time to get a pro to take a look. Don't worry; we'll return your van to its happy self soon! If you have any other questions, please call us at 877-913-1554! We'll gladly find you a certified RepairPal shop in your area!