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Engine noise 850 1995

posted by  dwight stallman on  Thu Aug 8 20:54 CST 2013
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last visit: Sun Jun 8 00:20 CST 2014
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My car has 183K. It is a manual shift and has been running perfectly for a long time. Today it developed a noise coming from the left front of the engine that sounds like a car horn blowing continuously but at about 10 percent of the volume of typical horn. It seems unchanged by rpms or if car is moving or stopped. It is not coming from the horn. The car still runs perfectly. Any ideas? Thanks








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    posted by  someone claiming to be on  Wed Dec 31 18:00 CST 1969 [RELATED]

    I discovered the cause of the noise. A pin hole in a vacuum hose, amazing it could make this much noise, thanks for the suggestions.



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    posted by  someone claiming to be on  Wed Dec 31 18:00 CST 1969 [RELATED]


    Do you have headlight wipers? If so, it could be the driver's side wiper motor staying on. You can disconnect the plug about halfway down the radiator on the driver's side pillar.



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    posted by  someone claiming to be on  Wed Dec 31 18:00 CST 1969 [RELATED]

    Your car does not have SAS, so no pump. There are very few moving parts on the driver's side. The idle control motor is always on, that is located just forward of the throttle body.

    Also check your alarm horn on the firewall. Just disconnect the plug.


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