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Car has bad vibes

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Auggie
Posts: 3
Joined: 20 Nov 2025, 16:40
Year and Model: 1994 940
Location: Tucson, Sz

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: 6514
Joined: 19 Jan 2014, 09:51
Year and Model: 2001 V70
Location: Oklahoma USA
Has thanked: 987 times
Been thanked: 1078 times

Post by volvolugnut »

Check for vacuum leak at the intake gasket. Or just change it, they are cheap and easy to change.
volvolugnut
The Fleet:
Volvo: 2001 V70 T5, 1986 244DL, 1983 245DL, 1975 245DL, 1959 PV544, multiple Volvo parts cars.
Mercedes: 2001 E320, 1973 280, 1974 280C, 1989 300E, 1988 300TE, 1979 300TD, parts cars.
2009 Smart Passion
Ford: 1977 F350, 1964 F150 (2), 1938 Tudor Sedan
Farmall tractors: 1956 400 Diesel, 1946 A
John Deere 214 lawn tractor about 1977 model
And others.
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Auggie
Posts: 3
Joined: 20 Nov 2025, 16:40
Year and Model: 1994 940
Location: Tucson, Sz

Post by Auggie »

Thanks. Will check that out,
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