Check the belt-routing diagram under the hood, locate the tensioner and idler roller, loosen the tensioner, install the alternator belt on the printed route, and set belt pressure if the tensioner is screw-adjustable. If it is spring-loaded, tension is applied automatically.
The owner of a 1987 Maxima asked for help replacing the alternator belt because the car could not be driven for service. The expert said the job is straightforward: follow the hood diagram, release the tensioner, fit the belt, and adjust tension unless the tensioner is spring-loaded. The expert did not identify which tensioner this car uses and invited follow-up questions.
