On 11/28/2005 6:17 PM Dave Kelsen spake these words of knowledge:
Here on my server, my original message did not show up, so I'm posting
this as an explanation.
My wife just came home in her 2001 Odyssey, 99,760 miles, and it is
surging from 1K to 2.5K RPM every 2.5 seconds. It does this sitting at
idle in the driveway. I have not driven it in this condition, although
I will do so in the morning - to the dealer.
Anyone have any idea what can cause such a thing?
... Whenever I think about the past it brings back so many memories...
Start by checking the coolant level in the reservoir, per
the owner's manual directions. Consider doing an air purge
of the cooling system, again per the owner's manual.
Certain engine control components are cooled by the cooling
system. With air or an improper amount of coolant in the
cooling system, these components will not work properly.
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