Hello everyone, I bought a car that had no known problems before. Since the pressure plate was worn out and hadn't been changed for a long time, I went to a very esteemed mechanic in Sakarya to replace the timing set and pressure plate. We replaced the pressure plate and timing plate. He said the V-belt was worn out, so we replaced that too. I drove the car for about 100 km. I started making a bearing noise that stopped when I pressed the clutch and came back when I released it. I immediately contacted my esteemed mechanic, he said, "It's a bit of a thousand." I said, "I hope it's all for the best," but I couldn't convince him. I drove like that for about 2 weeks. I saw that the noise wasn't going away, I begged and persuaded the mechanic. He said, "Okay, let's change it again and put in a Sacks brand." (The first one he installed was Eurorepar). We started removing the battery and the brain, my esteemed mechanic lost the car's brain and had it grounded to the battery. I said, "Oh, go ahead, brain." He said no, nothing happened, and continued working. He removed the old pressure plate, there doesn't seem to be a problem, there's a slight burn on some spots on the flywheel. We had the flywheel ground, installed a Sacks brand pressure plate, replaced the plug-in bearing, and took the car down. As expected, the car wouldn't start; the brain was fried. We took the brain out and gave it to the brain specialist, but they said the processor was fried. The processor would come tomorrow and replace it, and nothing else was fried. The next day, I went and assembled everything and gave me the key. I'm guessing they probably installed a used brain. Anyway, I got in the car, and the car shakes violently when taking off. I told you, a esteemed master like you. Since I no longer trusted the master and was afraid he might damage something else, I bought the car and came home. The car now shakes a lot when starting off; when I take off with a little pressure on the gas, it's fine. I feel like the engine is running more jerky and louder at idle than before. I hear a scraping noise from the belt. 1) Is the shaking caused by the pressure plate? 2) Could the shaking at takeoff and the shaking at idle be due to the ECU replacement, idle adjustment, etc.? 3) Did he definitely do something wrong during the timing belt replacement? Could the shaking and shaking be due to the timing belt adjustment?
Mehmetdmr