One problem related to engine rattling and whining sounds has been reported for the 2001 Mitsubishi Eclipse. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2001 Mitsubishi Eclipse based on all problems reported for the 2001 Eclipse.
When driving there is a rattling noise coming from engine, not there when first starting vehicle. Starts a short while later ,and gets louder the longer vehicle is driven. Took vehicle to dealer, who found nothing wrong. Consumer opened hood and noticed sound coming from drivers side of engine.