I think it's a vacuum leak coming from somewhere. Seems to happen under load. Any thoughts? I pulled the console but you can only see so many vacuum tubes.
1993 240 trumpet sound in dash
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volvolugnut
- Posts: 6225
- Joined: 19 January 2014
- Year and Model: 2001 V70
- Location: Oklahoma USA
- Has thanked: 927 times
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When you hear the sound, what things are on? heater fan? Radio? changing vent positions?
If the dash is still out, disconnect the speedometer cable (if it has one).
Disconnect all dash wires and try a drive.
volvolugnut
If the dash is still out, disconnect the speedometer cable (if it has one).
Disconnect all dash wires and try a drive.
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
And others.
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
And others.
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RockVegas
- Posts: 45
- Joined: 8 December 2009
- Year and Model: 1995 850 Turbo Wagon
- Location: South carolina
Good question. Seemingly nothing changes it, defrost, vents, radio, nothing. Happens consistently (more or less when I'm up to cruising speed then i have to give it a little more gas to climb a few miles per hour. Once I'm there, let off a bit on gas, goes away for the most part. I'll try some of your suggestions. Thanks!
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