About 327,000 models of the Ford F-150 pickup trucks have been issued with a recall after Ford cited issues with engine block heaters. The company states that cable splice connectors might have inadvertently been damaged during a service procedure for a previous recall that now poses a fire risk.

The affected F-150 and Super Duty trucks are a part of the 874,000 vehicles that were recalled during December 2018 to fix a wiring problem. So far, there is no immediate fix available. Following an official statement, Ford said that it was aware of a fire in the US and one in Canada that could be related to block heater usage.

The American automaker warns that the damaged block heater cable can cause a number of problems.

The company is also aware of an additional report of a fire in Canada which led to the initial recall last year. A total of 131,068 vehicles are now affected in the US and federalised territories and about 196,269 in Canada being recalled for a second time.

Affected vehicles include:

2015-19 Ford F-150 vehicles built at Dearborn Truck Plant in Michigan from March 18, 2014, to Nov. 17, 2018, and at Kansas City Assembly Plant from Aug. 21, 2014, to Nov. 17, 2018;
2017-19 Ford F-series Super Duty vehicles built at Ohio Assembly Plant from Feb. 5, 2016, to Nov. 17, 2018, and at Kentucky Truck Plant from Oct. 8, 2015, to Nov. 17, 2018.

Dealers are expected to disable the vehicle’s engine block heater cable by cutting off the plug end prongs and sealing the cap with silicone sealant.

The American automaker warns that the damaged block heater cable can cause a number of problems such as an inoperative engine block heater; tripping of household breakers or GFCI-equipped outlets; or a resistive short, which can increase the risk of overheated or melted wiring and fire while the vehicle is parked and the block heater is plugged in.

Dealers are expected to disable the vehicle’s engine block heater cable by cutting off the plug end prongs and sealing the cap with silicone sealant. Ford stated that the affected customers will be notified when an engine block replacement cable is available.