Auto makers have announced the recall of more than 11,600 Ford Motor Co. cars and 7,900 General Motors Corp. trucks and school buses.

The Ford products -- Ford Crown Victoria, Mercury Grand Marquis and Lincoln Town cars equipped with 5-liter electronic fuel-injected engines -- are being recalled to repair a fuel injection problem that could cause fuel leaks and engine fires.

Ford said it was not aware of any accidents, fires or fuel leakage from the potential defect.

Dealers will inspect and, if necessary, replace the fuel injection tube assemblies at no cost, Ford said. In some cases, the assemblies may be bent, creating the potential for fuel leaks and engine fires, the company said.

The Victoria and Marquis cars under the recall are 1987 models; the Lincolns are 1988 models.

The General Motors recall involves Chevrolet and GMC medium-duty trucks and school buses built during the 1983 to 1987 model years. Front brake systems will be inspected and modified without charge.

Many of the 4,300 buses, operated in school districts throughout the country, are being recalled a second time. GM officials concluded that a fix last year may not have been adequate, company spokesman Don Postma said.

GM said that in some cases, severe brake system "chatter" may cause mounting brackets to develop cracks. A fractured bracket would cause a loss of braking ability at that wheel, and steering could be restricted if broken brake components interfered with the steering system, GM said.

GM said it was not aware of any accidents or injuries as a result of the potential defect.

GM has advised owners of affected bus fleets of the recall, and it anticipates that the vehicles will be fixed before school opens, the company said.