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Questions tagged [engine-knock]

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Civic knocking while pushing harder and acceleration lag

I have civic 98 with D16Y4 engine with automatic transmission. It knocks while pushing gas harder during high revs. I'm currently using ron 92 and I tried ron 97 but faced knocking on all I even ...
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Yamaha virago 535 engine knock

I have a 1996 Yamaha virago 535 with 27000 miles and when I start it there’s a tapping noise and it doesn’t go away , when I drive it it calms down a little but if I stop the tapping is noticeable I ...
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1answer
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2006 Toyota Sienna overheating and now knocking?

This is my first post so bear with me, please. About a month ago I was given a 2006 Toyota Sienna. The first two weeks it was driving like a dream and very quiet. It has about 350,000 miles. The ...
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1answer
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Loss of Power and increased engine knock in my 2011 Ford Ranger Truck. Bad Gas or Bad Oxygen Sensor?

This past summer I've been noticing that my truck is not making the same power as it used too and I've noticed a pronounced increase in engine knock (detonation). The detonation usually occurs when I ...
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2answers
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Possible Causes of an Engine Tick?

I own a 1999 Mercury Cougar, running the 2.5L Duratech DOHC V6. I was recently out with a friend drifting (not the smartest idea, especially since my engine was already running rough), and while ...
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2answers
911 views

Drove over a semi-large rock and now vehicle vibrates in Park - Goes away in Drive

So... I hit a rock pretty bad over the weekend :(. I was going about 100KM/h maybe less, and it was smaller then a basketball sized rock, but it did some damage and jolted me/vehicle. I immediately ...
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1answer
535 views

2001 F150 4.2 V6 knocking noise

I have a loud knocking noise in my engine. It stopped for awhile but is back. I just replaced the heads and all gaskets, due to overheating. Now have it back together and it's knocking still. It keeps ...
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1answer
2k views

Your opinion on my “rod knock”

I have a 1992 Toyota pickup with 90,000 miles. It has always been taken care of. One day I noticed a knock, which was barely noticeable. You couldn't even hear it with the heater on but it ...
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1answer
884 views

Audi A6 2005 - Engine knocking / ticking

Lately my petrol engine (2.4L V6, Audi A6 C6 '05) started to sound more like a diesel engine. It feels like, whenever I give the tiniest amount of gas, there is some knocking noise. However, let's ...