Very High Idle ISV Problem

[Joshua Van Tol]

On Monday, February 17, 2003, at 12:21  PM, Christopher Flanner wrote:

> Yup, idle switch checks out.  I went through each step in the Bentley
> for
> troubleshooting idle stabilization problems and everything checked out
> okay.
>
> Wouldn't a bad idle switch only affect ISV control?  The idle is 3000
> rpm
> even with the ISV disconected!

I had the very same problem, and it turned out to be a defective ISV. I
think a turn or two broke off the return spring, or something. Never
did pull it apart, but a spare from a junker engine fixed it right up.