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Buick Riviera Problems

Crankshaft Position Sensor, Ignition/Powertrain Control Module May Fail on Buick Riviera

Problem Description and Possible Solution

The crankshaft position sensor, ignition module, and/or powertrain control module (PCM) may fail resulting in illumination of the Check Engine Light with ignition system related fault codes stored in the PCM. Patience is necessary when dealing with this specific situation as normal diagnostic procedures are not effective. In many cases, the best option is to replace parts, one at a time until the fault is corrected.

(2 people reported this problem)

Buick Riviera Vehicles With This Problem

RepairPal Verified
Average mileage: 177,000 (177,000–177,000)
Exhaust & Emissions affected: 3.8L V6
2 model years affected: 1996, 1997
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Brake problem? Or maybe a faulty head gasket cylinder?
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