Difficulty Level

Tools/Supplies Needed:

• none

Procedure:

• ensure that the correct oil type if being used in your vehicle
• when the engine is cold and not running, ensure that there is the correct amount of oil in the engine
• allow engine to come up to full operating temperature (DO NOT do this procedure when the engine is cold or not up to operating temperature)
• rev the engine up and hold at 3000rpm for three minutes
• once the three minutes are up, let the vehicle idle back down and idle for about 30 seconds
• go outside and listen while the engine is running if the tapping noise has disappeared
• if the tapping continues, continue process over again
• this process can be done up to 10 times
• if the noise does not disappear, it may be an issue relating to something else in the engine