Buick Verano check engine light issue persists after camshaft actuator replacement on Buick Verano

Submitted by Vehicle Owner · Jun 23, 2025
Published by RepairPal

Problem overview

Some Buick Verano owners report experiencing persistent check engine light issues even after replacing the camshaft actuator. These problems can stem from using incompatible or low-quality replacement parts, which may not function correctly. Additionally, owners should check for wiring issues or problems with the camshaft position sensor reluctor wheel, as these can also trigger the check engine light. Factory defects in the new camshaft position sensor may lead to similar persistence, necessitating inspection and possible replacement. Some owners find that disconnecting the battery for a short period or using an OBD2 scanner to clear error codes can help reset the system. In certain cases, simply driving the vehicle after repairs may allow the module to recognize the resolution of the issue. Furthermore, other sensors related to the camshaft or Variable Valve Timing (VVT) solenoid might be faulty and require inspection. If these troubleshooting steps do not resolve the issue, seeking a professional mechanic's diagnosis is advisable to uncover any underlying problems.

2 people reported this problem
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Buick Verano vehicles with this problem

1 model year affected
Average mileage: 75,000 miles
(75,000 - 75,000)

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