One problem related to loud engine noise has been reported for the 2003 Chevrolet Malibu. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2003 Chevrolet Malibu based on all problems reported for the 2003 Malibu.
On July 20, 2015 could not adjust the front driver seat. Also power windows in the back driver window would not roll down or up. July 23, 2015 when to get an oil change at sears which they didn't peform due to they needed drive time to approve. Checked the oil it was very low added 1 quart on August 10 I was on the freeway going speed limit car started reducing its speed heard a loud noise pulled over couldnot drive it so I had it towed home next day ain had to have it towed to the shop where drivetime told me to take it they had it from 8/11/2015-8/25/2015 on Aug 26 they so called put a new engine it was only 1 day later the check engine light came on and it overheated took it back to the shop and they said it needed the cat converter replaced in which it was not covered at that time on the 28 it was approved by the time I was informed drive time had my car repo due to nonpayment I feel that I should not make a payment until my car was fixed the right way.