One of the worst difficulties that can occur to your Toyota Rav4 is a bad fuel filter. Once the filter goes bad, it deserve to limit the amount of fuel that enters the engine. There is no fuel, the automobile will not run at all. With that in mind, most of the symptom of a bad fuel filter revolve approximately the automobile stalling out.

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Fuel filters have been making a rearward development for the last 50 years, literally. For a lengthy time, you’d discover it under the hood. The looked like a tiny pill, and also it would be quick and easy come replace. This remained in the era of carbureted vehicles.

Things began to adjust in the 80’s. Fuel injection requires greater fuel pressure. Greater fuel press meant the a an ext robust fuel filter would certainly be required. This supposed the fuel filter to be no longer left under the hood. It was placed in the steel fuel line, between the gas tank and engine bay.

These fuel filters were an ext reliable, yet they also were tougher come change. Repairing them way getting under the vehicle and also disconnecting steel fittings. It yes, really still isn’t that difficult to transaction with, as lengthy as you give the auto a couple of minutes because that the fuel push to walk down.

The great news is, no matter just how old her Rav4 is, the symptoms of a poor fuel filter space universal. It doesn’t issue if it’s in-tank or in-line. And, fuel filters are cheap.

Signs the a negative Fuel Filter: Toyota Rav4

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Typical Fuel Filter

There space physical indicators that you have the right to feel once your Rav4’s fuel filter is clogging. Before taking anything apart, examine to see if her engines computer has any type of trouble codes saved in it.

The engine might throw a P0087 problem code. This trouble code detects the the fuel rail/system push is also low. Any kind of trouble codes the exist could be a clue. Occasionally when there is short fuel pressure, friend may additionally get one oxygen sensor related trouble password as well. The real problem with diagnosing a poor fuel filter is that it resembles plenty of other vehicular issues in regards to symptoms.

Here room the most common symptoms the a poor fuel filter in your Toyota Rav4:

Sputtering Under Load

The only way that you room going to understand that your Rav4’s fuel filter might be going the end is that it is no much longer letting sufficient fuel v to store the engine running under a hefty load, or in ~ high-speed. Typically, if you space heading up a hill (or accelerating) the engine might start to feel prefer it is simply running the end of steam. That’s what it feels like with a poor fuel filter.

Now, a negative fuel filter can additionally feel a hell of a lot like a bad catalytic converter. Both conditions will make the motor feel favor it is running out of wind as soon as you struggle the gas. A bad catalytic converter will certainly not feel together jarring. It’s a smooth lack of power. If you space unsure, examine out this short article on troubleshooting catalytic converters. If you obtain P0420 or P0430 problem codes v a scanner, it an extremely well might be the catalytic converter resulting in these symptoms.

Hard to begin Engine

One that the finest indicators that a clogged fuel filter is going come be that the your Rav4 is difficult to start. This because there’s not sufficient fuel press to appropriately atomize the fuel together it beginning the burning chamber.

If your vehicle is complicated to start, a clogged fuel filter would most likely not be the location to start looking, particularly if you are getting no trouble password for fuel press or the oxygen sensors.

Instead, we’d recommend taking a look at the ignition mechanism first. Often it’ll be poor spark plugs, or a negative coil pack.

Engine not Starting

If the fuel filter has come to be so contaminated the the minimum lot of fuel has actually not to be let through it, the engine won’t start at all.

At the most an easy of levels her Toyota Rav4 demands three points to start: Air, fuel, and also spark. If any type of of these things aren’t present, the engine won’t turn over at all. If there’s to be zero warning the the fuel filter could be going poor (hesitation, difficulty starting, etc) than a clogged fuel filter can not it is in the ar to start. It can certainly reason the difficulty though.

Here’s a an excellent video on utilizing your eye to diagnose the fuel filter:

It Could likewise be your Rav4’s Fuel Pump

A fuel pump the is going out is walk to feeling the very same as a negative fuel filter. This renders telling if you have actually a negative fuel pump vs poor fuel filter an extremely challenging.

How perform you tell castle apart? A clogged fuel filter will have actually high push on its input side and also low press on its calculation side. They are both going to cause the exact same hesitation at high rate and an obstacle starting. The only means to truly tell is to location a fuel press gauge top top both sides of the line and get a analysis from both.

If your automobile isn’t starting at all, and you listen the fuel pump prime the is normally a an excellent indication the the pump is working to some capacity. Trial and error your Rav4’s fuel press on every side the the pump would certainly be the best way to diagnose this problem.

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A priming fuel pump sounds favor a high-pitched whine for a couple of seconds and can be heard through a sharp engine best after the ignition an essential is turned, but prior to the starter is engaged.

Conclusion: Toyota Rav4 negative Fuel Pump

The symptoms of a negative fuel pump enhance a many other typical problems that can take place in the Toyota Rav4. Experimentation the filter and pressure on every side that it room going to be the quickest means to dominion it out. If over there is anything friend would prefer to add, please leave a comment below. Good luck!