Dodge Dart engine RPM noise possibly misdiagnosed as alternator issue after idler pulley replacement on Dodge Dart

Some Dodge Dart owners report experiencing engine RPM noise that was initially misdiagnosed as an alternator issue following an idler pulley replacement. These owners highlight that improper installation or malfunction of the newly replaced idler pulley could contribute to the noise. Additionally, some have noted the importance of thoroughly inspecting the alternator to rule out any potential problems with this component. Incorrect belt tension is another factor that may lead to engine RPM noise, prompting some owners to check and adjust the belt tension according to manufacturer specifications. Furthermore, misalignment of pulleys, including the idler pulley, can cause operational noise, making it essential for owners to verify proper alignment. If the noise persists, some recommend consulting a qualified mechanic familiar with Dodge Dart engines for accurate diagnosis and effective resolution of the issue.