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.

Audio system: Whining noises in the radio speakers are caused by the gas tank fuel pump. An electronic noise filter must be installed on the fuel pump. (1990-96)

Automatic transmission: Shifting problems occur when water seeps into the sensor that reports the position of the shift lever. A service kit is available to fix it. (1990-94)

Brakes: The parking brake pedal spontaneously drops to the floor because the adjustment pawl does not engage. (1992-94)

Brakes: The transmission may be able to shift out of park without the brakes being applied if the center high-mount stoplamp is burned out or missing. (1994-95)

Engine knock: A knocking sound on startup on 5.8-liter engines is likely due to a problem with the secondary air pump. (1995-96)

Engine knock: A knocking noise on vehicles with the 4.9-liter engine may be due to insufficient oil requiring a new filter mounting insert and antidrainback oil filter. (1990-95)

Engine noise: The drive belt on 5.0- and 5.8-liter engines chirps because of misalignment caused by the water pump pulley. (1990-94)

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.

1990-91: Ignition switch could short-circuit, causing smoke and possible fire.

1992: Door latch mechanism may malfunction in below-freezing temperatures.

1992-94 w/manual shift: Parking brake pawl can slip; brake might not hold.

1993 Bronco w/speed control system: The speed control deactivation switch may, under certain conditions, leak internally and then overheat, smoke, or burn. This could result in an underhood fire. Dealers will install a fused wiring harness.

1993 w/Touch Drive: Transfer case can slip out of 4x4 high-gear position during coasting in forward gears or with power applied in reverse.

1994-96: Cruise-control deactivation switch may overheat, smoke, or burn.