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91' 940 Extreme RPM surge up and down when using cruise control and then engine failure... 900 1991

posted by  Chris Mullet on  Thu Jan 17 05:04 CST 2002
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last visit: Fri Oct 24 09:08 CST 2014
[RELATED]

It sounds like the trans is downshifting and upshifting (or "hunting") needlessly.

Did this situation start after having the throttle body cleaned? I'm thinking that maybe one or more of the throttle/kickdown/cruise cables are out of wack. Check over that whole spool arrangement and see if something looks odd. If the problem occurs with either the cruise ON or OFF, then I would suspect something with the kickdown cable (like something is making it too tight.) For instance, I've had that cable jump off the pulley before (making it too LOOSE in that case).

If you set the gear shift in the second range, will the RPM's remain steady at the higher mark?






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