Isuzu Rodeo engine ticking and chatter due to bad woodruff key and harmonic balancer causing belt squeal and wobble on Isuzu Rodeo

Submitted by kull987 · Jun 23, 2025
Published by RepairPal

Problem overview

Some Isuzu Rodeo owners report experiencing engine ticking and chatter, which they attribute to factors such as low oil levels or pressure, ignition system issues, or exhaust leaks. Additionally, some owners have identified a bad woodruff key and harmonic balancer as contributors to problems like belt squealing and wobbling. A faulty woodruff key can prevent the harmonic balancer from being securely attached to the crankshaft, leading to abnormal noises and wobbling. This malfunction may also result in belt squealing due to misalignment or improper tension. Furthermore, the wobbling harmonic balancer can cause erratic movement in other components, producing clicking or clacking sounds at various engine speeds. It is crucial for owners to address these issues promptly to avoid further engine damage and maintain optimal performance, and they are advised to seek professional inspection and repair if these symptoms are present.

1 person reported this problem
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Isuzu Rodeo vehicles with this problem

1 model year affected
Average mileage: 200,000 miles
(200,000 - 200,000)

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