INFINITI QX80 RPM needle fluctuates randomly at steady speeds, mechanic recommends transmission replacement on INFINITI QX80

Some Infiniti QX80 owners report experiencing fluctuating RPMs at steady speeds, which can indicate potential transmission issues. These fluctuations may occur if the transmission fails to stay in the appropriate gear, particularly when driving uphill, leading to stuttering and noticeable RPM changes. In serious cases, mechanics might recommend transmission replacement due to irregular shifting or delays caused by a faulty automatic transmission. Additionally, some owners have noted that worn-out spark plugs or clogged fuel filters can also contribute to RPM irregularities, affecting overall engine performance. It is crucial for owners to address these concerns promptly to ensure their vehicle functions properly and to prevent further damage.