Two problems related to engine noise have been reported for the 2001 Ford Explorer. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2001 Ford Explorer based on all problems reported for the 2001 Explorer.
Pinging noise when the engine is cold. When the engine gets warmer the noise starts to go away. Computer # jxv2.
Pinging noise at 2500-3000 rpms when the engine is cold. The noise goes away when the engine warms up.