2 4 0 T U R B O . C O M
D A V E ' S V O L V O P A G E
| V O L V O VACUUM DIAGRAMS |
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UPDATED: September 3, 2024
CONTACT
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Below is a collection of Volvo vacuum connection diagrams I have located or (some) created from Volvo service manuals and other sources.
I'm always looking for more diagrams to help our fellow Volvo owners who are having a tough time locating these.
| Additional vacuum diagrams can be found in my Under Hood Vacuum Label Collection here. |
| There are lots of vacuum diagrams in various Volvo service manuals that I don't have, especially for 700-900 models. If you have any diagrams not seen here, please consider sending me some pics. CONTACT |
Click
to enlarge images
240 B21E/F 1975-77 |
240 B21F 1976-77
Version 1 |
240 B21F 1976-77
Version 2 | 240 B21E/F 1976-78
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240 B21F 1976-78 | 240 B21F 1977 EGR
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260 B27F 1977 EGR 
| 240 260 B21F B27F 1977- Delay Valve
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240 B21F 1977 Distributor 
| 240 B21E/F 1978 and
later |
240 B21 E/F 1978-79 | 240 B21E-F 1979-82 AC Idle Compensation  |
| 240 B21E-F 1979-82 AC Idle Compensation  |
240 B21E-F 1979-82 AC Idle Compensation 
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240 B21F-B23E unknown
years EGR
| 240
B21F B23E 1980-84 |
| 240-260 B21A-F, B28 1980 (Charcoal Canister, Evap Control)  | 240 B21A manual 1980 (Evap Control)  |
| 240 B21A auto 1980 (Evap Control)  | 240 B21F 1980 (Evap Control)  |
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240 B28F 1980 (Evap Control)  | 240 B21E 1981 and later |
| 240 B21ET-FT 1981-83 (AC Idle Compensation)  | 240 B21F 1981 Idle Compensation and Warm-up Valve
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260 B28F 6-cylinder 1981 | 260 B28F 6-cylinder 1981 Version 2 |
240 B21FT control
pressure regulator | 240 B21FT manifold Version 1 |
| 240 B21FT Distributor and Canister Vacuum. From TP30727 page 15. Port A shown on throttle body is toward the back of the engine. Port B is the front port. 
| 240 B21FT Engine Vacuum Label. It should be noted that this under hood vacuum label shows a DIFFERENT throttle body port routing for the distributor diaphragm than the diagram to the LEFT. The diagram at LEFT shows PORT A toward the back of the engine. This label below shows PORT B there. It is believed THIS label is incorrect. This would mean ALL under hood 240 Turbo vacuum labels are technically wrong.  This issue is discussed in more detail in my Ignition Page in the Ported Versus Manifold Vacuum Section. Your comments are welcome. |
| 240 B21FT manifold Version 2. Plus Canister. (note that the throttle body port is technically incorrect for a B21FT).  | 240 B21ET 1984-85 EGR |
240 B21ET, B21FT Cruise Control | 240 B21F-FT thermostatic "wax" valve and CPR |
240/740 B21/B23/B230
throttle body & evap. charcoal canister. | 240/740 B21/B23/B230
throttle body & evap. charcoal canister detail. |
240 B23F
throttle body, charcoal canister, roll-over valve, fuel tank. |
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240 vent control
diagram 1981 and later with combined heater. | B230K (Solex carburetor)
1987
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240 B23F LH 2.0 Cruise Control 1983-84 |
B230F LH 2.2 Cruise Control 1985 |
B230F LH 2.2 Cruise Control 1986+
| B230F Cruise Control (unknown year)
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B230 EGR Component Identification | B230FD 240, 940, Pulsair, EGR 1993+
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S70/V70 (850) T5 1998
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