Home > Ford

1998 Ford Aeromax

Component

Service Brakes, Air

Consequence of Defect

vehicle description: medium duty tandem rear axle trucks with abs. these vehicles fail to comply with fmvss no. 121, "air brake systems." the air brake system was plumbed so that complete air reservoir isolation was not provided. some vehicles were built with an air line from the system ecu relay valve module tee fitting, incorrectly connected to the system supply tank, rather than the system auxiliary primary tank.

Corrective Action

a leakage or failure can cause a pressure loss in the secondary tank resulting in the draining of the primary tank also, and thus a complete loss of vehicle system air pressure, diminishing brake effectiveness, and increasing the risk of a crash.

Recall Notes

dealers will inspect the vehicle to determine whether the vehicle has the incorrectly routed air line. those with the condition will be correctly plumbed and the air brake system tested to verify proper reservoir isolation.

1998 Ford Aeromax

Component

Service Brakes, Air

Consequence of Defect

vehicle description: heavy duty trucks equipped with optional wabco air dryer. the air brake system was plumbed so that the systems did not provide air reservoir isolation. this does not comply with the requirements of fmvss no. 121, "air brake systems."

Corrective Action

the air brake reservoir pressure could be depleted, activating the emergency spring brake. with the emergency spring brake deployed, the vehicle would stop and could not be moved until the brake air system was repaired.

Recall Notes

dealers will repair the air line plumbing to install a check valve.

1997 Ford Aeromax

Component

Service Brakes, Air:Supply:Low Pressure Warning

Consequence of Defect

the air brake system was manufactured having air brake pressure release times of approximately 1.5 seconds. this does not comply with the requirements of fmvss no. 121, "air brake systems."

Corrective Action

this condition can result in slight trailer brake drag and tire scuffing increasing the risk of a vehicle accident.

Recall Notes

dealers will install a quick release valve in the air pressure release systems.

1997 Ford Aeromax

Component

Service Brakes, Air

Consequence of Defect

vehicle description: heavy duty trucks equipped with optional wabco air dryer. the air brake system was plumbed so that the systems did not provide air reservoir isolation. this does not comply with the requirements of fmvss no. 121, "air brake systems."

Corrective Action

the air brake reservoir pressure could be depleted, activating the emergency spring brake. with the emergency spring brake deployed, the vehicle would stop and could not be moved until the brake air system was repaired.

Recall Notes

dealers will repair the air line plumbing to install a check valve.

1996 Ford Aeromax

Component

Service Brakes, Air:Supply:Low Pressure Warning

Consequence of Defect

the air brake system was manufactured having air brake pressure release times of approximately 1.5 seconds. this does not comply with the requirements of fmvss no. 121, "air brake systems."

Corrective Action

this condition can result in slight trailer brake drag and tire scuffing increasing the risk of a vehicle accident.

Recall Notes

dealers will install a quick release valve in the air pressure release systems.