OEM 2002 GMC Savana 3500 Spark Plug

2002 GMC Savana 3500 Parts Questions & Experts Answers

• Q: How to replace spark plugs on 2002 GMC Savana 3500?

  A: Before beginning Spark Plug replacement start by taking away the Spark Plug Wires. Spark plugs require one or two turns of loosening before reaching them from the wheel wells. Before replacing spark plugs users should brush off any visible dirt from around the plugs either manually or with compressed air. Organize a tray for each Spark Plug with the correct cylinder number and place the plugs in these trays one by one. Installation of the Spark Plug washer requires correct placement along with a Spark Plug gap measurement to be adjusted until it reaches 1.524 mm (0.060 in) specification. On iron head installations subsequent Spark Plug torque requirements are 15 n.m (11 lb ft) for 4.3l, 5.0l, and 5.7l but 20 n.m (15 lb ft) for 7.4l. One must tighten new iron head spark plugs to 30 n.m (22 lb ft) across all engine sizes. The last step includes returning the Spark Plug Wires to their original position.