2003 Chevrolet Impala LSFACTORY OEM SERVICE PROCEDURE

Maintenance Items

Maintenance Items

Item Type/Part Number
Automatic Transmission Filter 24206433
Engine Air Cleaner/Filter A1614C
Engine Oil Filter
  • 3.4L (LA1)
AC Type PF47
Passenger Compartment Air Filter GM P/N 10406026
  • 3.8L (L36)
AC Type PF47
Spark Plugs and Gap
  • 3.4L (LA1)
AC Type 41-101, 1.52 mm (0.060 in) Gap
  • 3.8L (L36)
AC Type 41-101, 1.52 mm (0.060 in) Gap
Windshield Wiper Blades GM P/N 10418004 - Hook Type, 56.0 cm (22 in)
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.