How to Replace the Spark Plugs on a Santa Fe?
2 Answers
Santa Fe spark plug replacement method: 1. Disconnect the ignition coil wiring harness plug, remove the ignition coil fixing bolts, and inspect the spark plugs; 2. Select the appropriate tool, assemble the tool, remove the spark plugs, and take out the spark plugs one by one. Cover the spark plug holes on the cylinder with a cleaning cloth to prevent objects from entering the cylinder block; 3. Align the ignition coil with the spark plug, install it in place, use a tool to screw in the bolts, clean the measuring tool, measure the spark plug gap, and evaluate the spark plugs; 4. Check the appearance of the new spark plugs for any issues, install the spark plugs into a special socket, screw them into the spark plug holes using a digital torque wrench, set to 25nm, tighten the spark plugs, turn off the ignition switch, open the engine hood, and install the three-piece set; 5. Use a digital torque wrench to tighten to 8nm, start the vehicle, and clear any faults.
I've changed the spark plugs on my Santa Fe before, so let me share some tips. You'll need a 16mm spark plug socket, torque wrench, needle-nose pliers, and anti-static gloves. First, wait until the engine cools completely and disconnect the negative battery terminal to prevent short circuits. Be careful with the clips when removing the engine cover. Each ignition coil wiring harness connector has a clip - gently pry it open with needle-nose pliers. When removing the coils, wiggle them side to side and pull slowly - don't yank them out. For new spark plugs, make sure the gap is between 0.8-1.0mm using a feeler gauge. During installation, be extremely careful not to let any debris fall into the cylinder, and apply some anti-seize compound to the threads. Tighten them to 25 N·m using a torque wrench for safest results. After replacement, start the engine to test - if the idle is stable, you're done. Remember to change them every 60,000 km, otherwise fuel consumption will increase.
