Honda Amaze Engine Knocking and Fuel Drain: Need Help!

Let me share my experience with similar symptoms on my 2013 Honda City. Had the exact same issues last month, poor acceleration, knocking sounds, and terrible fuel economy. Turned out to be carbon deposits in the combustion chamber, which was affecting the proper burning of fuel. The mechanic did a thorough cleanup of the combustion chamber and fuel injectors, replaced the spark plugs, and adjusted the valve clearance. It was quite a serious issue that could've led to engine damage if left unchecked. The knocking sound was actually pre-ignition caused by those carbon deposits. While I can't recommend specific mechanics, I'd suggest going to a certified Honda service center for this kind of problem. They're equipped with the right diagnostic tools and know these engines well. This isn't something you want to risk with an inexperienced mechanic. The fix definitely brought my car back to life, smooth acceleration, normal fuel consumption, and no more weird noises.

Thanks for sharing your experience! That sounds exactly like what I'm dealing with. My Amaze is running so much better now after getting the same issues fixed. The carbon deposit cleanup and new spark plugs made a huge difference. Just curious, do you remember roughly how much you paid for all that work? Also, has everything been running smoothly since the repair, or have you noticed any other issues pop up?

Hey there! Glad to hear you got your Amaze sorted out! Yeah, I remember the exact cost since it was just recently, paid 425€ for the whole job. That included cleaning out all those nasty carbon deposits that were causing the knocking. And you know what? It's been running like a dream since then! The knocking is completely gone, which is such a relief. It's amazing what a proper cleanup can do, my car feels like new again. No other issues have shown up, and I'm getting way better fuel economy now. The engine's running super smooth during acceleration, no more of those annoying jerks or weird noises. Definitely worth every cent I spent on it. These Honda engines are really solid once you take care of them properly. Just keep an eye on your fuel quality and maybe do regular maintenance a bit more frequently, helps prevent those deposits from building up again. Trust me, you don't want to deal with that knocking sound ever again!

Thanks so much for the follow-up! I actually just got my car back from the mechanic yesterday. After hearing about your experience, I went ahead and got it fixed, cost me around 400€, pretty similar to what you paid. The mechanic found exactly what you described, carbon deposits were the main culprit. The difference is incredible! My Amaze feels like a completely different car now. The engine's running smoothly, no more knocking sounds, and the acceleration is crisp again. Even filled up the tank today and noticed I'm using way less fuel already. Really appreciate your advice about the regular maintenance, I've already marked my calendar for the next service. Definitely learned my lesson about not waiting too long between checkups. Now I know what to look out for, and I'll be more proactive about keeping those carbon deposits at bay. Thanks again for helping me figure this out. It's such a relief to have my car running properly again!