Rockabetty78
Member
I have a 2013 Chevy sonic LT hatchback 1.8l luw automatic. I went to change the knock sensor and replaced it put tput back the intake manifold and put everything back the same way it was removed. Also replaced engine oil cooler and housing bc had oil in coolant tank. Changed the oil and poured flush with degreaser and topped off w distilled water. Now when I start my car I hear rattling and immediately starts smoking from what looks like the block that smells weird not like burning oiI. I just know that it's a lot of smoke and noisy and it's as soon as I start my car so afraid to drive it. Had to drain the coolant flush bc says it can stay in up to 4 hours so couldn't leave overnight. I read something that indicated it might be something with the intake take manifold but I didn't believe didn't really remove it completely I just unbolted the top and removed the bracket below to make room to access knock sensor and then bolted it back in. What did I do wrong???
