Engine Mechanical (VG33E & VG33ER): Diagnosis Nissan Frontier D22

NVH Troubleshooting Chart - Engine Noise

Use the chart below to help you find the cause of the symptom.

Scheme 211

1. Locate the area where noise occurs.
2. Confirm the type of noise.
3. Specify the operating condition of engine.
4. Check specified noise source. If necessary, repair or replace these parts.

Inspection

Visually check the condition of timing belt.

Replace if any abnormality is found.

Scheme 212

Scheme 213

Scheme 214

1. Check belt tensioner for smooth turning.
2. Check condition of tensioner spring.

Scheme 215

Scheme 216

Scheme 217

Scheme 218

Scheme 219

1. Confirm that No. 1 piston is set at TDC on its compression stroke.
2. Install tensioner and tensioner spring. Once stud is removed, apply locking sealant to threads of stud on cylinder block side before installing.
3. Turn tensioner fully outward with hexagon wrench, and temporarily tighten lock nut.
4. Set timing belt when engine is cold. Align white lines on timing belt with punchmarks on camshaft sprockets and crankshaft sprocket. Point arrow on timing belt toward front belt cover. Number of teeth (reference)
5. Install the remaining parts in the reverse order of removal.