Automotive service professionals should be aware of a Ford Motor Co. recall of 634,000 sport utility vehicles (SUVs) worldwide over fire risks from possible cracked fuel injectors.

The majority of the vehicles affected were sold in the U.S., but more than 100,000 were sold outside of the U.S., including Canada.

According to information from Ford and NHTSA, 2020-2023 model year Bronco Sport and Escape SUVs with 3 cylinder, 1.5 liter engines, including many also recalled in April because an oil separator housing could crack and develop a leak that could cause an engine fire.

Vehicles repaired under the earlier recall will still need the new recall fix, the NHTSA said.

According to the recall, dealers will:

Update the engine control software to detect whether the fuel injector is cracked and, if so, provide a dashboard message to customers to seek service.

Additionally, if a pressure drop in the fuel rail is detected, engine power will automatically be reduced to minimize any risk, while also allowing customers to drive to a safe locations, and stop the vehicle and arrange for service;

Install a tube that drains fuel from the cylinder head and away from hot surfaces;

Check for excessive fuel odour near the top of the engine, another indicator of a possible issue.

Owner notification letters are expected to be mailed December 19, 2022.

Ford owners were urged to contact their local dealer but have not been advised to stop driving the vehicles.