New Topics › Forums › General Discussion › 1999 – 2002 Nissan Quest › Vibration at 50mph, feel the gear change at low speed, engine service light on › Reply To: RE: Vibration at 50mph…
Yes, vibration and engine service light (ESL) on are related. The ESL comes on not only for engine problems. It also includes all transmission problems.
Check the level and quality of the transmission fluid. You might need to drain/replace it. Bad fluid will cause transmission shifting issues.