If any of these go bad, they will surely cause your Toyota Vios to have acceleration problems.Īn oxygen sensor for the Vios 1.5-liter versionsĭo note though that to fix ECU-related issues, you’ll need to get help from the CASA or a tuning shop. The accelerator pedal itself employs potentiometers, which provide input to the ECU in order to control how much fuel goes into the engine.
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Toyota Vios Acceleration ProblemsĪs a modern car, the Vios uses an electronic control unit to handle the many variables required to manage the operation of its engine. For these issues, we recommend going to a radiator specialist. Then again, there are also more difficult to fix causes like a busted radiator fan or radiator leaks caused by holes on the radiator itself. Also, consider checking the condition of your Vios’ thermostat because that might be causing overheating as well. Other things that can cause your Vios to overheat include running on low oil levels, which is fixed by topping it up. If that thing is loose, coolant might not be able to circulate properly. And of course, the cover of a radiator needs to be pressure tight. As such, don’t forget to read its label.Īnother cause of overheating is of course not filling up your car with enough coolant. Do note though that the steps on these might vary depending on the type of radiator flush product you’re using. Let it run for 10 to 15 minutes to allow the radiator flush to circulate.īy doing this, the radiator flush, which is a solvent of sorts, can get rid of sludge, loose debris, and other crap blocking your coolant pipes and radiator chambers. After draining, fill it up with the flush, and start your engine. For this, you’ll want to drain the old coolant fluid and clean it out with a commercial radiator flush. While the Vios’ stock radiator is known to be “bulletproof,” there are some instances that it will have trouble keeping your car cool.įor older units, the radiator might need a flush as its pipes might be clogged with slush and/or debris. This is especially true if the fuel consumption issue can only be solved by replacing the oxygen sensor as you’ll need to be familiar with its position in the engine. These of course can be easily replaced, but we urge you to employ the help of a mechanic if you don’t know what you’re doing. On the mechanical side though, these problems might involve dirty oil, worn-out oxygen sensors, dirty spark plugs, as well as dirty air filters. The current 1.5-liter Vios variants still uses the 2NR-FE inline-4 mill That is, if you ignore the fact that you might be a “lead foot driver.” In which case, you might want to change your driving habits. If, however, your Vios returns a figure larger than those in the regular, then you might be experiencing mechanical problems. According to Toyota itself, the 1.3-liter mill can return a higher consumption rate of 19 km/L in mixed conditions. Toyota Vios: Fuel Consumption issuesĪs tested during our Vios review, the 1.5-liter inline-4 that propels this Toyota-made sedan can return up to 12.2 km/L in mixed (city and highway) driving conditions. As such, it uses the same chassis and engines, and so these fixes will apply to Vios models released from 2013 to the present. So, what are the common Toyota Vios problems, and how does one fix them?īefore talking about these issues and their fixes though, do note that the current available Vios is still the XP150 third-generation. Then again, some older units will experience one or two problems as they age. Including the recently facelifted model Toyota Vios 2021, the car in general has been known to be a reliable car with only a few mechanical issues.
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The Toyota Vios is without a doubt one of the popular cars in the market today.