2002 Saturn L200 AutomaticFACTORY OEM SERVICE PROCEDURE

Fuel Tank: Notes

Fig 1: Identifying Fuel Tank Valve
G01019325Courtesy of GENERAL MOTORS CORP.

The fuel tank is blow-molded of high-density polyethylene. This material is multi-layer in construction to enhance its ability to minimize leakage of fuel vapors to the atmosphere (impermeability). It is generally 4.0 mm to 5.0 mm (101.6 in. to 127 in.) in thickness and incorporates two valves which operate during the refueling process.

Both these valves are not serviceable, both are molded into fuel tank shell, Fill Limit Vent Valve (FLVV), and grade vent valve.

Factory Service Tools

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:

  • 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.

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