accelerator sticking at full throttle.

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His throttle cable might have too much slack in it, causing it to slip off the guide. Throttle body may need to be cleaned or oil needs changed due to too much moisture.

Not supposed to warm up a Honda. Just drive it gently for first three miles.

'Curly'

the only way it can stick at full throttle is if he gunned it to full throttle. and on a cold motor, that's really not a smart thing to do. he should drive gently until warm, NOT idle until warm. and NEVER gun it while cold.

regarding remedy, it's either moisture in the cable liner or frayed cable getting stuck. either way, inspect closely, clean and consider replacement.

westy wrote in news:973915_b2e63b41967deac9df84193a401c2873 @autoboardz.com:

"Fell to the floor"? This implies it dropped without driver intervention.

Did the throttle work fine thereafter?

If the throttle is now fine, frankly, I find this event description impossible to believe. The throttle plate has a VERY strong spring holding it shut. This spring is permanently attached to the throttle plate spindle, entirely independent of the throttle cable. Even if the cable fell off, the plate would remain closed.

I wonder if your boy isn't trying to cover something up.

I'm with TeGGeR - it is mighty unlikely in a car with a conventional throttle. The newer drive-by-wire throttles are capable of that in the event of Throttle Positioning Sensor (TPS) failure, but the pedal does not move in that event. What year and model Honda is it?

Mike