Hi-ya! good morning, at this moment we will created an article about Symptoms Of A Bad Fuel Filter In A Toyota Corolla
One of the worst problems that can happen to your Toyota Corolla is a bad fuel filter. When the filter gets damaged, it can limit the amount of gasoline that gets into the engine. Without fuel, the vehicle will not run at all. On this occasion we are going to inform you about the Symptoms of a Bad Fuel Filter in a Toyota Corolla.
Most of the signs of a bad fuel filter revolve around the Corolla getting clogged. Fuel filters have been making a backward progression for the last 50 years, literally. For a long time, you would find it under the hood. It looked like a small pill, and it would be quick and easy to replace. This was in the era of carburetted vehicles.
Symptoms of a Bad Fuel Filter on a Toyota Corolla
There are physical signs that can alert you when your Corolla’s fuel filter is becoming clogged. Before disassembling something, check if your engine computer has any trouble codes stored.
The engine may throw a fault code P0087. This trouble code detects that the system/fuel rail pressure is too low. Any trouble codes that exist could be a clue. Occasionally when the fuel pressure is low, a trouble code related to the oxygen sensor may also appear.
The real problem with diagnosing a bad fuel filter is that it resembles many other vehicle problems in terms of symptoms.
These are the symptoms of a bad fuel filter on a Toyota Corolla:
1- Crackling under load
The only way to know that your Corolla’s fuel filter may be going out is to no longer lets through enough fuel to keep the engine running under heavy load, or at high speed. Typically, if you’re heading up a hill (or speeding up) the engine can start to feel like it’s running out of gas. That’s what it feels like to have a bad fuel filter.
As well, a bad fuel filter can also look a lot like a bad catalytic converter. Both of these conditions will make the engine feel like it is running out of wind.
A faulty catalytic converter will not feel like a jolt. It’s a mild lack of power. If you’re getting trouble codes P0420 or P0430 with a scanner, it’s very likely the catalytic converter is causing these symptoms.
2- Problems starting the engine
One of the best indicators of a clogged fuel filter is your Corolla being hard to start. This is because there is not enough fuel pressure to properly atomize the fuel as it enters the combustion chamber.
If your Corolla is hard to start, a clogged fuel filter is probably the place to start looking, especially if you don’t get a trouble code for your fuel pressure or oxygen sensors.
You can read: Frequent Oxygen Sensor Failures
Also we recommend that you first take a look at the ignition system. Often it will be bad spark plugs, or a bad coil pack.
3- The engine does not start
If the fuel filter has become so contaminated that it is not letting even the smallest amount of gasoline through, the engine will not start at all.
At the most basic level, your Toyota Corolla needs three things to start: Air, fuel, and spark. If any of these things are missing, the engine will not start at all.
If there has been no warning that the fuel filter might be failing (hesitation, hard starting, etc.) then a clogged fuel filter might not be the reason for the car not starting. However, it could certainly cause the problem.
One of the worst problems that can happen to your Toyota Corolla is a bad fuel filter. When the filter gets damaged, it can limit the amount of gasoline that gets into the engine. Without fuel, the vehicle will not run at all. On this occasion we are going to inform you about the Symptoms of a Bad Fuel Filter in a Toyota Corolla.
Most of the signs of a bad fuel filter revolve around the Corolla getting clogged. Fuel filters have been making a backward progression for the last 50 years, literally. For a long time, you would find it under the hood. It looked like a small pill, and it would be quick and easy to replace. This was in the era of carburetted vehicles.
Symptoms of a Bad Fuel Filter on a Toyota Corolla
There are physical signs that can alert you when your Corolla’s fuel filter is becoming clogged. Before disassembling something, check if your engine computer has any trouble codes stored.
The engine may throw a fault code P0087. This trouble code detects that the system/fuel rail pressure is too low. Any trouble codes that exist could be a clue. Occasionally when the fuel pressure is low, a trouble code related to the oxygen sensor may also appear.
The real problem with diagnosing a bad fuel filter is that it resembles many other vehicle problems in terms of symptoms.
These are the symptoms of a bad fuel filter on a Toyota Corolla:
1- Crackling under load
The only way to know that your Corolla’s fuel filter may be going out is to no longer lets through enough fuel to keep the engine running under heavy load, or at high speed. Typically, if you’re heading up a hill (or speeding up) the engine can start to feel like it’s running out of gas. That’s what it feels like to have a bad fuel filter.
As well, a bad fuel filter can also look a lot like a bad catalytic converter. Both of these conditions will make the engine feel like it is running out of wind.
A faulty catalytic converter will not feel like a jolt. It’s a mild lack of power. If you’re getting trouble codes P0420 or P0430 with a scanner, it’s very likely the catalytic converter is causing these symptoms.
2- Problems starting the engine
One of the best indicators of a clogged fuel filter is your Corolla being hard to start. This is because there is not enough fuel pressure to properly atomize the fuel as it enters the combustion chamber.
If your Corolla is hard to start, a clogged fuel filter is probably the place to start looking, especially if you don’t get a trouble code for your fuel pressure or oxygen sensors.
You can read: Frequent Oxygen Sensor Failures
Also we recommend that you first take a look at the ignition system. Often it will be bad spark plugs, or a bad coil pack.
3- The engine does not start
If the fuel filter has become so contaminated that it is not letting even the smallest amount of gasoline through, the engine will not start at all.
At the most basic level, your Toyota Corolla needs three things to start: Air, fuel, and spark. If any of these things are missing, the engine will not start at all.
If there has been no warning that the fuel filter might be failing (hesitation, hard starting, etc.) then a clogged fuel filter might not be the reason for the car not starting. However, it could certainly cause the problem.
