Home ReviewsRefund
Home/GMC/Envoy/GMC Envoy II (2001-2009)/Repair manual/Testing & Diagnostics/Engine Control System - 5.3L - Introduction: Maintenance
Contents Wiring diagrams Section: Testing & Diagnostics All sections

Engine Control System - 5.3L - Introduction: Maintenance GMC Envoy II

Testing & Diagnostics

Fuel Tank Draining Procedure

  1. Disconnect the negative battery cable. Refer to «Battery Negative Cable Disconnect/Connect Procedure»(ref-200375-S07741338702005102000000) in Engine Electrical.
  2. Raise the vehicle. Refer to «Lifting and Jacking the Vehicle»(ref-200385-S41061932852005102000000) in General Information.
  3. Loosen the fuel fill hose clamp (1).
  4. Disconnect the fuel fill hose (2) from the fuel tank.
  5. Use a hand or air operated pump device in order to drain as much fuel from the fuel tank as possible.

More articles — Engine Control System - 5.3L - Introduction