The 1988 Honda Prelude has 3 recalls, the most serious being two separate issues that can prevent the accelerator pedal from returning to idle, leaving the driver unable to reduce engine power while moving.
One of those throttle concerns only affects SI trim vehicles: a porous throttle body casting can allow coolant to seep onto the throttle valve and leave residue that slows its return when the driver lifts off the accelerator. In the other, the accelerator pedal stopper can bend under heavy foot pressure, catching the pedal in the depressed position and causing an uncontrolled acceleration event. On the steering side, the power steering supply hose can develop a small leak at the connector clamp, and if the escaping fluid contacts the exhaust manifold, it can start a fire.
At a glance
What can fail
The accelerator pedal stopper can bend when you press the pedal hard after it hits the stopper. In rare cases, the bent stopper can catch and hold the pedal down, causing sudden loss of control.
What the fix does
A support bracket will be installed to prevent the stopper from bending.
Summarized — see the official notice for exact wording, dates, and contacts.
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At a glance
What can fail
The power steering hose connector clamp seal may leak. Leaking fluid could contact the hot exhaust manifold and cause a fire.
What the fix does
Install a reinforced rubber power steering hose assembly to prevent leaks.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The throttle body casting may have tiny pores that allow coolant to seep through. Over time, coolant residue builds up on the throttle valve, slowing its return to idle when you release the accelerator pedal.
What the fix does
The throttle body assembly will be replaced with a new one.
Summarized — see the official notice for exact wording, dates, and contacts.
