Mercedes Mullins
The fuel filter in your car is designed to capture pollutants before they reach your engine. If it gets clogged with muck, your fuel system will start to have problems. You'll know your fuel filter needs replacing if your car starts shuddering when you're idling, or starts rougher than normal. Other signs include a lagging response to pressing the gas pedal, or engine misfires and stalls. If you're experiencing any of these issues, you can buy a replacement Mopar fuel filter online.
How to replace a factory Mopar fuel filter
| Characteristics | Values |
|---|---|
| When to replace | When the water in fuel indicator appears on the dash, or when you know you have picked up contaminated fuel |
| Where to find it | Under the truck at the fuel tank |
| Signs of a failing fuel filter | Engine misfires and stalls, lagging response to pressing the gas pedal, shuddering when idling, rougher start than normal, failure to start, "Check Engine" light coming on, complete engine failure |
| What to do | Plug in a code reader and run an inspection, or have your vehicle inspected by a certified Mopar mechanic |
| What to replace it with | A genuine OEM fuel filter that was designed to fit your specific model |
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What You'll Learn
Signs of a failing fuel filter
If you're unsure where your factory fuel filter is located, you can find it by crawling under the truck at the fuel tank. Most vehicles have their fuel filter installed in the fuel tank.
A failing fuel filter can be identified by several signs. One of the first symptoms commonly associated with a bad or failing fuel filter is hard starting. A dirty fuel filter may restrict the fuel system flow, or at least make it inconsistent, which can cause the vehicle to experience hard starting. Your car or SUV may start shuddering when you're idling or start rougher than normal. Other signs include a lagging response to pressing the gas pedal, or engine misfires and stalls. If a clogged fuel filter goes unaddressed for too long, it may eventually cause the engine to stall as ideal fuel flow dwindles. An overall lack of engine power, especially noticeable when accelerating, can be caused by a dirty fuel filter. The engine’s computer ends up restricting the output to protect the engine from potentially damaging particles. The car may feel sluggish, or even go into limp mode and illuminate the Check Engine light.
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Where to find your fuel filter
To replace your fuel filter, you will first need to locate it. Most vehicles have their fuel filter installed in the fuel tank. If you have a truck, you can find the fuel filter by crawling under the truck at the fuel tank. You can't miss it!
If you are unsure whether your fuel filter needs replacing, there are some signs to look out for. Your car or SUV may start shuddering when you're idling or start rougher than normal. You may also notice a lagging response to pressing the gas pedal, or engine misfires and stalls. If the problem is severe, you may experience a failure to start, the "Check Engine" light coming on, or complete engine failure.
If you suspect that your fuel filter is the problem, you can confirm this by plugging in a code reader and running a careful inspection. If the results indicate that you have fuel filter problems, you should replace it. You can buy a replacement filter online from an auto parts store.
It is recommended that you replace your fuel filter with a genuine OEM fuel filter that was designed to fit your specific model.
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How to confirm a bad fuel filter
You can check your owner's manual to determine how long your fuel filter will last. However, if you end up with a tank of dirty fuel or notice symptoms that indicate the fuel is no longer being filtered properly, you may need to replace it sooner. For example, if your fuel pump is damaged, this could be caused by a bad fuel filter. A damaged fuel pump will make a loud, obvious sound and struggle to send fuel to the engine. If your fuel filter is dirty, the rest of your system will have to compensate, which could lead to serious issues.
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How to replace the fuel filter
If you're experiencing issues with your fuel filter, it's important to get it checked out and replaced if necessary. Your fuel filter is likely located in the fuel tank, and you can find it by crawling under your truck.
Signs of a failing fuel filter include a shuddering car when idling, a rougher start than usual, a lagging response to pressing the gas pedal, or engine misfires and stalls. If you're experiencing any of these issues, it's best to have your vehicle inspected by a certified mechanic to confirm the problem.
Once it's been confirmed that your fuel filter needs to be replaced, it's recommended to use a genuine OEM fuel filter that is designed to fit your specific model. You can purchase these filters online from auto parts stores.
It's important to note that if you suspect you've picked up contaminated fuel or your water-in-fuel indicator appears on the dash, you should replace your fuel filter immediately.
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Buying a new fuel filter
If you're looking to buy a new fuel filter, it's important to know the signs that your current one is failing. These include a shuddering car when idling, a rougher start than normal, a lagging response to pressing the gas pedal, engine misfires and stalls, a failure to start, the "Check Engine" light coming on, or complete engine failure. If you're experiencing any of these issues, it's worth plugging in a code reader to confirm whether or not it's a fuel filter problem. If it is, it's time to replace it.
Your OEM makes its fuel filters to fit its models specifically, so it's best to opt for a genuine OEM fuel filter as a replacement. You can buy these online from auto parts stores, and they will ship them straight to your door.
If you're unsure where your factory fuel filter is located, it's usually in the fuel tank. Just crawl under the truck at the fuel tank and you'll be able to spot it.
It's also worth noting that if you've picked up any fuel that could be contaminated or your water-in-fuel indicator appears on the dash, you'll want to replace the fuel filter immediately.
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Frequently asked questions
Your car or SUV may start shuddering when you're idling or start rougher than normal. Other signs include a lagging response to pressing the gas pedal, or engine misfires and stalls. The most severe examples are a failure to start, the "Check Engine" light coming on, or complete engine failure. If you know that you picked up any fuel that could be contaminated or your water in fuel indicator appears on the dash, you will want to replace it immediately.
Have your vehicle inspected by a certified Mopar® mechanic.
You can buy them online from auto parts stores.
Your OEM makes its fuel filters to fit its models specifically, making them the best choice when it's time for a change.
Most vehicles have their fuel filter installed in the fuel tank. If you're not sure where your factory fuel filter is located, just crawl under the truck at the fuel tank and you can't miss it.
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