1979 Ford F-150 Needle and Seat Replacement

Step 1

Repair step

No step image supplied by iFixit.

• Put your vehicle in park and turn it off.

Step 2

Repair step

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• Open hood of your vehicle and locate the air filter.

Step 3

Repair step

No step image supplied by iFixit.

• Remove screw attached to air filter assembly. Remove air filter unit.

Step 4

Repair step

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• Locate the needle and seat screw.

Step 5

Repair step

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• Use 3/8 wrench to hold the bolt in place. Now use the flat head screw driver to unscrew the screw.
• Twist counterclockwise with flathead screwdriver.

Step 6

Repair step

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• Remove screw and set it to the side.

Step 7

Repair step

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• Use 3/8 wrench to remove nut.

Step 8

Repair step

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• Use the 7/16 wrench and twist the needle and seat counterclockwise.

Step 9

Repair step

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• Pull out the needle and seat.

Step 10

Repair step

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• Insert your new needle and seat. Twist clockwise until about half the threads are in the carburetor.

Step 11

Repair step

No step image supplied by iFixit.

• To reassemble, go in reverse order from step 10.
• To replace screws that were removed, twist clockwise until the screws have a tight hold.

Step 12

Repair step

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• Once everything is reassembled, turn on the car.
• If the car is making a high pitched idling noise, you may need to adjust needle and seat tighten (clockwise) to reduce rpm and loosen (counterclockwise) to increase.