I recently got my heater core replaced in my 2016 Jeep Wrangler and I noticed when I picked it up from the shop that the acceleration seemed off. I used to have no issues with acceleration but now my acceleration sometimes sounds louder/deeper and feels like an empty acceleration/it hesitates and doesn’t fully accelerate when I step on the gas. I notice it a lot more on hills and especially on the highway. I believe it’s also causing me to lose more gas (my average mpg has decreased from what it was before). Could this have been caused by the heater core replacement?