Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Component Fuel Pumps: Disassembly
File a locating mark on pump cover, fuel and vacuum pump sections and pump body, for reassembly in same relative positions. Remove diaphragm screws while holding fuel and vacuum pump bodies firmly against pump body.
On AC pumps, unhook fuel pump pull rod from rocker arm link by pressing down on diaphragm and tilting lower end of pull rod away from rocker arm, unhook vacuum pump pull rod by turning diaphragm assembly 90° while tilting lower end away from rocker arm link. On Carter pumps, it will be necessary to remove rocker arm pin and withdraw rocker arm from pump body to free the diaphragm pull rod (Piston type vacuum pump piston assembly can be withdrawn from cylinder by grasping piston nut and rotating piston while it is being pulled out). To remove valves and oil seals for replacement, remove staking and pry old valves and seal out
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.