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Buick Riviera Problems

RepairPal has identified the most common problems with the Buick Riviera based on complaints from actual vehicle owners. We'll tell you what the problem is and what it'll take to fix it.

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31
Known Problems
Extended life coolant may become contaminated and require cooling system service before the recommended 100,000 miles.
Our technicians recommend to replace the fuel system filter every 30,000 miles.

The front struts may show signs of wear, or be excessively bouncy ride at freeway speeds. This may begin to occur at around 75,000 miles.

A coolant leak may develop from the water pump. This can result in an engine overheating condition. A leaking water pump will require replacement.

The fuel pump may fail causing the engine to stall and not restart. Our technicians recommend replacing the fuel filter every 30,000 miles to help prevent undue strain on the fuel pump.

Our technicians highly recommend that the engine coolant be replaced every 30,000 miles.

The high pressure power steering hose will commonly leak fluid; it should be replaced.

Brake fluid can become dirty and may cause problems in the brake system; it should be flushed every 60,000 miles.

The intake manifold and valve cover gaskets can develop external engine oil leaks.

The camshaft position sensor interrupter (magnet) on the camshaft sprocket may fall off causing the check engine (SES) to illuminate. If this fault occurs on high mileage vehicles our technicians recommend to also replace the timing chain at the same time.

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.

The intake manifold gasket may develop external engine oil leak. The manifold gasket will need to be replaced to correct this issue.

An automatic transmission fluid leak may develop from the rubber section of a transmission cooler line. In some cases the rubber section of hose can be replaced. In others, the complete cooler line must be replaced to correct this type of leak.

The supercharger may develop a noise in the front section of the supercharger assembly. The is due to a worn coupler. Our technicians tell us that a remanufactured coupler section is available from aftermarket suppliers.
The EGR tube may develop an engine vacuum leak causing the check engine (SES) light to illuminate.