When does a Toyota Corolla make a grinding noise on startup?
When a Toyota Corolla makes a grinding noise on startup, check out this video for a look at the cause. Shown is a 2010 Corolla with an original Denso starter. Some Generation 10 cars made from 2009 to 2013 may have this issue. Loading…
Why do I hear a knocking noise in my engine?
When your engine is running smoothly, the air/fuel mixture burns up in a single, controlled detonation inside each cylinder. Detonation knock is a knocking noise that you’ll hear when the air fuel mixture in the cylinders is detonating in more than once place at a time.
Can a bad knock sensor cause an engine to knock?
There’s even a knock sensor that’s designed to detect engine knock and tell the Engine Control Unit, so it can correct the problem automatically. This naturally means that a bad knock sensor can allow the engine to knock.
Where does the knocking come from in an engine?
Another possible source of engine knocking isn’t actually coming from the engine itself at all. It could be coming from the accessory belt. As the engine runs, it turns a belt that’s connected to various pulleys throughout the engine bay. This belt must be under the exact right amount of tension so that it turns smoothly and quietly.
Why does my Toyota Twm make a weird grinding noise?
The closest thing I have to engine mods are my TWM short shifter, and my borla axle back exhaust. The noise only happens after my car has been sitting there, parked for a few hours. So to bring it to Toyota/mechanic would be nearly impossible to replicate, unless I left it there for a while. And even then, the noise only happens sometimes.
Why does my corolla Rattle after a cold soak?
Immediately following a cold soak startup, some 2009 model year Corolla and Matrix vehicles may exhibit a brief knock/rattle noise from the engine compartment for approximately one second. Follow the repair procedure below to address customer concerns.
What makes a weird grinding noise when you start your car?
Sometimes when I start my car it makes a weird cranking/grinding noise for half a second. The closest thing I have to engine mods are my TWM short shifter, and my borla axle back exhaust.