Toyota Corolla Engine Problems

If the car won’t accelerate beyond 40km/h, it could be because it has gone into limp-home mode in order to protect itself from further damage. If so, that’s possibly because there’s a major problem somewhere in the driveline. But the chainsaw noise is pretty worrying, too, and suggests that something is rubbing on something else that shouldn’t be.

The best advice is to not drive the car any farther until it’s been checked by a mechanic. Continuing to drive it risks doing more damage to whatever is already wrong with it.

The Corolla of this vintage has a fine reputation as a vehicle unlikely to fail in such a spectacular way. Assuming, as you say, the servicing has been by the book and the car has not been abused, used to tow massive loads, or operated as a rally car, then the suspicion is that the crankshaft of this particular example may have contained a casting or material fault from day one. This wouldn’t be visible to the people who assembled the engine, but could lead to such a failure after a period of time.

I’d be inclined to talk to Toyota Australia’s customer service department to see if there’s any financial or mechanical help on offer to repair your vehicle. Even though your vehicle is out of warranty, you might find Toyota will be as horrified as you at such a major failure at such low kilometres and will do something about it. Assuming that a manufacturing flaw is, indeed, the cause of the failure.

If you don’t get anywhere but wish to pursue it, an independent examination by an appropriate engineer might be able to pin-point the cause of the failure, at which point you might have another bargaining chip. Certainly a broken crankshaft at 62,000km is neither normal nor acceptable.

The CVT you’re referring to is actually the car’s transmission rather than its engine. And since the engine is what drives the air-conditioning compressor, it’s the engine’s power and torque that determines whether the car still drives nicely with the air-conditioning switched on, not whether the transmission is a CVT or any other type.

But I think I know what you are referring to. And that is how well the car’s engine and its CVT transmission are matched. Sometimes, a transmission can gobble up a fair bit of horsepower and torque and that can take the edge off performance. Throw the switch on the air-conditioning and there’s even more load on the engine, making it feel even less perky. In that sense, I think the Corolla as the newer design would have a more efficient transmission and that could mean that it feels the load less than the older Honda might and, therefore, holds on to more of its original performance.

But the second thing you mentioned, that your car’s air-con doesn’t really keep up at temperatures over 30 degrees is more likely to be a problem with the air-con itself. You might find that a five-year-old car (such as your Honda is) is ready for the air-conditioning system to be serviced and perhaps even re-gassed, which might just return it to better health. For the record, Toyota’s have always had some of the best-performing air-conditioning systems in the business over the years, and I very much doubt that a 30-degree day would tax the air-con in a new Corolla one iota.

Good news, Amy; your Corolla has an engine with a timing chain rather than a timing belt. While a timing belt needs periodic replacement, the timing chain should be good for the life of the engine.

No, it’s not normal, but it doesn’t mean it’s a lemon. It might only be a minor problem, so have a mechanic check it for you.

The 2.0-litre engine would be the better choice for your longer trips where the petrol engine would play a greater role than it will in local driving. If you go for the 1.8-litre you would lose a little performance on those trips, but it would be the better choice for use around town.

Toyota rates their latest Corolla's fuel efficiency at 6L per-100km, which is impressive given the 126lW 2.0-litre motor in the new model.

Batteries for 2007-2018 11th-generation Corollas have basic dimensions of 234mm (long), 129mm (wide) and 201mm (tall, without terminals). They need approximately 430CCA (cold cranking amps). A Century NS60LS is reported to be a direct replacement for the original Toyota battery.

The latest (MY18) Corolla has 169hp from a 2.0-litre four-cylinder engine, or 126kW in the new money.

Regular 91-octane unleaded petrol.