Consumer Guide's® Auto Editors have scoured repair bulletins and questioned mechanics to search for commonly occurring problems for a particular vehicle. In some cases we also give possible manufacturer-suggested solutions. In many instances these trouble spots are Technical Service Bulletins posted by the manufacturer, however, we have our own expert looking at additional vehicle problems.

Check-engine light: Engine knock and/or check-engine light could be cause by corrosion on the rear knock sensor. (1998-02)

Coolant leak: The 3.8-liter V6 may leak coolant into the engine from the intake manifold. A new gasket kit, revised throttle body nuts, and sealing compound is available. Redesigned manifolds are also available in the aftermarket. (1993-02)

Coolant leak: Coolant loss via plastic intake manifold is corrected by installing upgraded manifold and gaskets plus new PCV kit. (1995-02)

Cruise control: Because of oversensitivity, the cruise control cuts out and won't reset unless the key is turned off. GM will replace the cruise-control module. (1993-95)

Doors: Although the doors can be locked manually, the power door locks may not operate due to a rubber bumper falling off of the actuator arm. (1995-96)

Doors: The power door locks fail because the actuator rod comes apart. (1994-97)

Engine temperature: Overheating and coolant loss may be due to rough surface on radiator filler neck. Neck should be sanded smooth and cap replaced. (1999-2000)

Hard starting: Hard starting and drivability problems on 5.7-liter V8 could be caused by coolant in distributor. (1993-02)

Heater core: The seal on the heater core case gets loose and cold air enters, which reduces the heater performance. (1993-94)

Rear axle noise: Under warranty, the company will replace the entire rear axle (excluding brake rotors on cars with rear disc brakes) on a complete exchange basis. (1995)

Steering noise: The upper bearing mount in the steering column can get loose and cause a snapping or clicking, requiring a new bearing spring and turn-signal cancel cam. (1994-96)

Vehicle shake: Cars with the 5.7-liter engine may vibrate at highway speeds. Replacing the driveshaft fixes the problem, but usually results in axle noise becoming more apparent. (1993-96)

This table lists costs of likely repairs for comparison with other vehicles. The dollar amount includes the cost of the part(s) and labor (based on $50 per hour) for the typical repair without extras or add-ons. Like the pricing information, replacement costs can vary widely depending on region. Expect charges at a new-car dealership to be slightly higher.

1994: Misrouted V8 fuel line may contact "air" check valve; heat could damage line, which could leak fuel into engine compartment.

1995: Lower coupling of steering intermediate shaft could loosen and rotate, resulting in loss of control.

1997: Seatbelt retractors on some cars can lock-up on slopes.

1999 w/manual transmission: Clutch master cylinder on a few cars may have incorrect retaining ring, preventing clutch from disengaging.

2002: Welds near lower driver-side door hinge may not meet specifications, possibly causing severe injuries in a crash.