Infiniti QX4 Problems

Front Catalytic Converters are Prone to Cracking on Infiniti QX4

Problem Description and Possible Solution

Front catalytic converters are prone to cracking along the seams of the converter itself. Most repair shops can successfully weld the seems to prevent exhaust leakage.

(7 people reported this problem)

Infiniti QX4 Vehicles With This Problem

RepairPal Verified
Average mileage: 93,500 (75,000–112,000)
2 model years affected: 2002, 2003
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Check engine light came on right after picking up car from dealer for recall repairs. Looked up diagnostic code which said it needs catalytic system repairs