
The 1986 Ford Ranger has two fuel filters. The primary filter is located inside the left frame rail, near the area between the cab and the bed. It is behind a metal shield, and you can remove the shield by taking out one of the two bolts. The secondary filter is located in the engine compartment. It can be found by tracing the fuel line from the left frame rail up into the compartment. It is usually near the left rear and looks like a traditional filter.
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What You'll Learn

The primary fuel filter is located inside the left frame rail
The 1986 Ford Ranger has two fuel filters. The primary fuel filter is located inside the left frame rail, near the area between the cab and the bed. It is protected by a metal shield, which can be moved out of the way by removing one of its two bolts. The filter is fist-sized and cylindrical.
To access the primary fuel filter, you will need to crawl under the truck. The filter is located on the inside of the driver's frame rail, about where your seat is.
Before attempting to remove the primary fuel filter, it is important to relieve the pressure in the fuel system. You will also need a metal quick disconnect tool. First, remove the springy retainer clips that hold the filter to the frame. Then, put the two halves of the tool around the fuel filter tube and slide them into the fuel fitting. If there isn't enough room, insert one half at a time. You may need to gently tap the tool with a hammer to get it in place.
Once the tool is in position, hold the fuel line with a pair of pliers and pull the filter out while pressing the disconnect tool into the fitting. Be sure to note the direction the existing filter is facing so that you can install the new one correctly.
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The secondary filter is in the engine compartment
The 1986 Ford Ranger has two fuel filters. The secondary filter is located in the engine compartment. To find it, trace the fuel line from the left frame rail up into the compartment. You should find it near the left rear. It is shaped like a traditional filter and looks like a doll's goblet with nipples.
Before you begin, relieve the pressure in the fuel system. Crawl under the truck and locate the fuel filter. You will need a metal quick disconnect tool. Put the two halves of the tool around the fuel filter tube and slide them into the fuel fitting. If there isn't enough room, put one half in first, then the other. Slide them in as far as they can go. You may need to gently tap the tool with a hammer if it is sticking.
Use a pair of pliers to gently hold the fuel line and pull the filter out while pressing the disconnect tool into the fitting. Be sure to put on your safety goggles as fuel may splash. Note the direction that the existing filter is facing so that you can install the new one in the same way.
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The fuel filter is behind a metal shield
The 1986 Ford Ranger has two fuel filters. The primary filter is located inside the left frame rail, near the area between the cab and the bed. This filter is placed behind a metal shield. To access the filter, you need to remove one of the two bolts holding the shield in place. Once the bolt is removed, you can swing the shield away and access the filter for removal or replacement.
The fuel filter is an essential component of your vehicle's fuel system. It is designed to remove particles and contaminants from the fuel before they enter the fuel injection system. By doing so, the filter helps protect the fuel injectors and engine from harmful debris, ensuring optimal performance and longevity.
The primary fuel filter on the 1986 Ranger is typically located near the fuel tank or fuel valve. It is usually fist-sized and shaped like a cylinder. To locate it, you can start by looking along the left frame rail, close to the area between the cab and the bed of the truck. This area is accessible from underneath the vehicle.
When attempting to locate and replace the fuel filter, it is important to relieve the pressure in the fuel system before proceeding. Additionally, always refer to a trusted repair manual or seek professional assistance if you are unsure about any steps in the process.
The secondary fuel filter on the 1986 Ranger is located in the engine compartment. To find it, you can trace the fuel line from the left frame rail up into the engine compartment. It is typically located near the left rear of the compartment and has a distinctive appearance, resembling a traditional filter or a doll's goblet with nipples.
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The filter is under the driver's frame rail
The fuel filter on an 86 Ranger is located under the driver's frame rail. It is positioned on the inside, roughly where the driver's seat is. This is the primary fuel filter.
To access the primary fuel filter, you will need to crawl under the truck and locate it by sight. It is fist-sized and shaped like a cylinder. You will find it behind a metal shield, near the area between the cab and the bed.
To remove the metal shield, take out one of the two bolts. You should then be able to swing the shield away and access the filter for removal or replacement.
The secondary filter is located in the engine compartment. This can be found by tracing the fuel line from the left frame rail up into the compartment. It is positioned near the left rear and has the traditional filter shape, resembling a doll's goblet with nipples.
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The fuel inertia switch is under the glove box
The fuel inertia switch is located under the glove box, just above the carpet. It is designed to shut off the fuel pump(s) in the event of an accident, preventing fuel from being pumped all over the vehicle in the event of a leak.
The switch can be reset by pushing the RESET or recessed button on top of it. This can be done after a shock to the switch, such as coming off a jump, which may cause the truck to cut out.
The fuel filter can be found under the driver's frame rail, on the inside, about where your seat is. There are some springy things on the Quick Disconnect fittings that need to be taken off by squeezing and twisting them to release the tab and slot that holds them together.
The fuel pump relay switch is usually located in the main box on the driver's side fender in a black box.
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Frequently asked questions
The 86 Ranger has two fuel filters.
The primary fuel filter is located inside the left frame rail, near the area between the cab and the bed. It is behind a metal shield.
Take one of the two bolts out of the metal shield. You should then be able to swing the shield away and remove and replace the filter.
The secondary filter is located in the engine compartment. Trace the fuel line from the left frame rail up into the compartment. You should find it near the left rear.
It is shaped like a traditional filter and looks like a doll's goblet with nipples.











































