The 1993 Ford B600 has two recalls, both involving the throttle failing to return to idle, which can make the vehicle accelerate unintentionally and increase the risk of a crash.
On vehicles equipped with the Cummins 5.9L diesel engine, the accelerator return springs can fracture and leave the throttle stuck open. A separate issue affects models with automatic transmissions, where the accelerator lever and transmission modulator lever can bind against each other and also prevent the engine from dropping back to idle. Both conditions can result in loss of vehicle control.
At a glance
What can fail
The accelerator return springs can fracture in trucks and bus chassis equipped with Cummins 5.9L diesel engines.
What the fix does
Dealers will replace the accelerator return springs with a new torsion spring design.
Summarized — see the official notice for exact wording, dates, and contacts.
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At a glance
What can fail
Friction between the accelerator lever and transmission modulator lever can cause them to interfere with each other, preventing the engine from fully returning to idle.
What the fix does
Dealers will install a revised modulator lever to eliminate the friction and interference.
Summarized — see the official notice for exact wording, dates, and contacts.
