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

posted by  yogabro on  Wed Jan 16 21:45 CST 2002
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last visit: Tue Dec 9 21:42 CST 2008
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I have read through the 700/900 FAQ's and don't know if my problem is covered there or not but here goes

When I am driving (usually on highway with cruise on), I can sense something is about to happen. The engine lags a little and then the tach jumps from cruising at 2600 to 4000 and then jumps all around. If I rev the engine it may normalize but usually the engine stalls. And I can restart immediately

WHere do I start to diagnose? Throttle body was cleaned recently. Faulty relay perhaps?





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New 91' 940 Extreme RPM surge up and down when using cruise control and then engine failure... [900][1991]
posted by  yogabro  on Wed Jan 16 21:45 CST 2002 >


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