The 1997 GMC B7 has two recalls, both affecting steering on these school buses, and both can result in complete loss of steering control.
One recall involves an intermediate steering shaft where the slip joint does not overlap enough, allowing the shaft to physically separate and leave the driver unable to steer. The other affects buses equipped with the 6.0L gasoline engine and 10,000 lb. front axle, where a power steering fluid supply hose can chafe against nearby components, leak fluid, and eventually cause all power steering assist to fail, making the steering wheel extremely difficult or impossible to turn.
At a glance
What can fail
The power steering fluid supply hose can interfere with other components, causing fluid to leak from the power steering system.
What the fix does
A new power steering hose and adapter will be installed to prevent interference and stop the leak.
Summarized — see the official notice for exact wording, dates, and contacts.
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At a glance
What can fail
Some school buses have an intermediate steering shaft with insufficient overlap in the slip joint, which can allow the steering shaft to separate.
What the fix does
Dealers will inspect the steering shaft and replace the intermediate steering shaft if needed.
Summarized — see the official notice for exact wording, dates, and contacts.
