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Car has bad vibes

Help, Advice, Owners' Discussion and DIY Tutorials on all Volvo's "mid era" rear wheel drive Volvos.

1975 - 1993 240
1983 - 1992 740
1982 - 1991 760
1986 - 1991 780
1990 - 1998 940
1990 - 1998 960
1997 - 1998 V90/S90

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Auggie
Posts: 3
Joined: 20 November 2025
Year and Model: 1994 940
Location: Tucson, Sz

Car has bad vibes

Post by Auggie »

My 1994 940 has the shakes when idling. I had new motor mounts installed, the IAC replaced, throttle body cleaned. When I look at the exhaust it doesn’t seem to be the problem. Any ideas?

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volvolugnut
Posts: 6222
Joined: 19 January 2014
Year and Model: 2001 V70
Location: Oklahoma USA
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Post by volvolugnut »

Check for vacuum leak at the intake gasket. Or just change it, they are cheap and easy to change.
volvolugnut
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Auggie
Posts: 3
Joined: 20 November 2025
Year and Model: 1994 940
Location: Tucson, Sz

Post by Auggie »

Thanks. Will check that out,

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