What 12 owners told NHTSA about the 2017 Ford F-550

The contact called on behalf of the owner of a 2017 Ford F550. The contact stated that while one of the employees was driving at highway speeds, a diesel fuel-burning odor was coming from the engine and entering the cabin of the vehicle through the A/C vents. No warning lights were illuminated. The driver pulled over to the side of the road and turned off the vehicle. The driver exited the vehicle and noticed oil dripping from underneath the vehicle. The driver opened the hood and noticed diesel fuel all over the engine compartment. Upon further investigation, the driver noticed that the plastic drain valve on the bottom of the water separator had cracked, and oil was spewing upwards. The driver called the company mechanic, and the mechanic went to the site of the failure. The mechanic repaired the vehicle on-site by replacing the filter. The driver was able to continue driving the vehicle. The manufacturer was not notified of the failure. The failure mileage was 59,384.

NHTSA ODI 11717381

The contact owns a 2017 Ford F-550. The contact stated that after two to three minutes after the engine was idled, a ticking noise was heard in the engine. The noise would dissipate however, a rattling noise was heard next. The contact stated works as an independent mechanic and diagnosed the vehicle and stated that the #3 cylinder had a low oil pressure and that the camshaft and follower needed to be replaced. The dealer was notified of the failure, but the vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 213,720.

NHTSA ODI 11478173