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.

Automatic transmission: Automatic transmissions may suffer harsh or shuddering shifts between first and second or may buzz or vibrate in park or neutral. (1992)

Climate control: The temperature-control lever may slide from hot to cold, usually when the blower is on high speed. (1992-94)

Dashboard lights: The oil-pressure gauge may read high, move erratically, or not work because the oil-pressure sensor is defective. (1990-93)

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)

Transmission leak: Fluid may leak from the pump body on 4L60-E transmissions due to the pump bushing walking out of the valve body. (1995-96)

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.

1992 Blazer: Rotor sections may separate due to corrosion, resulting in loss of braking ability in the affected wheel.

1992-94 Blazer: The ABS switch can malfunction causing increased stopping distances while in 2-wheel-drive mode.

1993 Blazer: Vehicle may move unintentionally due to excessive wear to the low and reverse clutch.

1994 Blazer: Tow-hitch attaching bolts were not tightened to standard and could allow the hitch and trailer to separate from the vehicle when towing.

1995 w/M30/MT1 automatic transmission: When shift lever is placed in "Park" position, its indicator light may not illuminate.

1995-96 w/gasoline engine: Throttle cable may contact dash mat and bind; engine speed might then not return to idle.

1997: During a severe crash, seat belt buckles with an energy absorbing loop may malfunction, leading to full or partial ejection from the vehicle. Dealer will inspect and replace affected buckles.

1998 C10706: Rear brake line can contact left front fender wheelhouse inner panel; a hole could be worn in brake line, allowing loss of fluid and reducing rear-brake effectiveness.

1998: Lower steering pinch bolt may be "finger loose" or missing, resulting in off-center steering wheel or separation of shaft from steering gear.

1998: On some vehicles, one or both front brake rotor/hubs may have out-of-spec gray iron that can fail during life of vehicle.

1999 Blazer: Seatbelts may not meet locking requirements, leaving occupants improperly restrained in a crash.

1999-00 Tahoe: In a crash, right front-passenger restraint systems may not meet neck extension requirements.

2000 Tahoe: Airbag sensing module may have an anomaly that could keep the airbags from deploying in a collision.

2000 Tahoe: Loose or missing rear wheelhouse plugs could allow noxious gases to enter the cabin.