One that the worst problems that can occur to her Nissan Maxima is a bad fuel filter. When the filter go bad, it deserve to limit the amount of fuel the enters the engine. Without fuel, the vehicle will no run at all. Through that in mind, many of the symptom of a bad fuel filter revolve approximately the automobile stalling out.

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Fuel filters have actually been do a rearward progression for the critical 50 yøears, literally. Because that a long time, you’d uncover it under the hood. It looked choose a small pill, and also it would certainly be quick and also easy to replace. This was in the era the carbureted vehicles.

Things started to readjust in the 80’s. Fuel injection requires higher fuel pressure. Higher fuel pressure meant the a much more robust fuel filter would be required. This supposed the fuel filter to be no longer left under the hood. The was put in the steel fuel line, between the gas tank and also engine bay.

These fuel filters were more reliable, however they also were tougher to change. Repairing them means getting under the vehicle and disconnecting stole fittings. It yes, really still isn’t that complicated to transaction with, as lengthy as you give the auto a couple of minutes for the fuel pressure to go down.

The great news is, no matter how old her Maxima is, the symptoms of a negative fuel filter room universal. That doesn’t issue if it’s in-tank or in-line. And, fuel filters space cheap.

Signs the a poor Fuel Filter: Nissan Maxima

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Typical Fuel Filter

There room physical signs that you can feel once your Maxima’s fuel filter is clogging. Before taking something apart, examine to watch if her engines computer system has any trouble codes conserved in it.

The engine might throw a P0087 problem code. This trouble code detects the the fuel rail/system press is too low. Any kind of trouble codes the exist might be a clue. Occasionally when over there is short fuel pressure, you may additionally get one oxygen sensor associated trouble password as well. The real problem with diagnosing a poor fuel filter is that it resembles numerous other vehicular concerns in terms of symptoms.

Here are the most usual symptoms that a poor fuel filter in her Nissan Maxima:

Sputtering Under Load

The only way that you room going to understand that her Maxima’s fuel filter might be going the end is the it is no much longer letting enough fuel through to save the engine running under a hefty load, or at high-speed. Typically, if you are heading increase a hill (or accelerating) the engine may start come feel choose it is just running out of steam. That’s what it feels choose with a negative fuel filter.

Now, a poor fuel filter can also feel a hell of a lot like a negative catalytic converter. Both problems will make the motor feel choose it is running the end of wind when you struggle the gas. A negative catalytic converter will certainly not feel as jarring. It’s a smooth absence of power. If you are unsure, examine out this article on troubleshooting catalytic converters. If you get P0420 or P0430 problem codes v a scanner, it very well might be the catalytic converter resulting in these symptoms.

Hard to start Engine

One of the best indicators the a clogged fuel filter is going come be that the her Maxima is complicated to start. This because there’s not enough fuel press to appropriately atomize the fuel together it beginning the combustion chamber.

If your auto is challenging to start, a clogged fuel filter would probably not it is in the ar to start looking, especially if girlfriend are acquiring no trouble code for fuel press or the oxygen sensors.

Instead, we’d recommend acquisition a look in ~ the ignition system first. Often it’ll be negative spark plugs, or a negative coil pack.

Engine no Starting

If the fuel filter has become so contaminated that the minimum amount of fuel has not been let v it, the engine won’t begin at all.

At the most an easy of levels her Nissan Maxima requirements three things to start: Air, fuel, and spark. If any of these things aren’t present, the engine won’t rotate over at all. If there’s been zero warning that the fuel filter can be going poor (hesitation, challenge starting, etc) than a clogged fuel filter can not be the place to start. It might certainly reason the trouble though.

Here’s a great video on making use of your eyes to diagnose the fuel filter:

It Could likewise be your Maxima’s Fuel Pump

A fuel pump that is going out is walking to feeling the exact same as a poor fuel filter. This makes telling if you have a poor fuel pump vs negative fuel filter an extremely challenging.

How carry out you tell lock apart? A clogged fuel filter will have high push on its entry side and low press on its calculation side. They space both going to reason the same hesitation at high rate and an obstacle starting. The only way to truly tell is to ar a fuel press gauge top top both political parties of the line and also get a reading from both.

If your car isn’t starting at all, and also you listen the fuel pump prime the is typically a great indication the the pump is functioning to part capacity. Testing your Maxima’s fuel pressure on every side that the pump would be the best way to diagnose this problem.

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A priming fuel pump sounds favor a high-pitched whine because that a couple of seconds and also can be heard with a spicy engine right after the ignition an essential is turned, but before the starter is engaged.

Conclusion: Nissan Maxima negative Fuel Pump

The symptoms of a negative fuel pump match a lot of other common problems that can happen in the Nissan Maxima. Trial and error the filter and pressure on each side of it room going to be the quickest methods to dominance it out. If over there is anything friend would choose to add, please leave a comment below. Good luck!