Pump Body Disassembly

1988 GMC S15/T15 4WD Jimmy V6-173 2.8LSECTION Pump Body Disassembly



1. Compress pump slide spring with needle nose pliers, then pull spring straight out. Slide spring is under high pressure. Place covering over spring to prevent possible injury during removal.

2. Remove the following:

a. Pump guide rings.

b. Pump vanes.

c. Pump rotor.

d. Pump guide.

e. Slide and slide seal.

f. Seal support.

g. Pivot slide pin and spring.

h. Slide seal ring and slide back-up seal.

3. Remove oil seal assembly, if necessary.
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.