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You are watching: 1991 honda accord vacuum hose diagram


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Does anyone know where does the hose goes that connects to the output on the top of this part. I"m talking about the output that has no hose on it in the picture. On my car, it"s just dangling behind the engine. Thanks in advance!
2006 Accord Sedan 6MT Navi
Audio Control LC6I / Rockford Fosgate R600X5 / Infinity Reference 9633cf / Infinity Reference 6030cs / Rockford Fosgate Punch P1-2X10 / Parrot MK6000 / Diode Dynamics 6000K HID Low Beams / DDM 3000K HID Factory Fogs / Diode Dynamcs Stage II LED Conversion / Backup Camera / Mid Muffler Delete / Dynomax Exhaust Resonator / Fujita CAI / 17mm TL Rear Sway Bar / Tein S Tech Springs / Tokico Blues / Ingalls Camber Kit / Ingalls Stiffy
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I believe that is part# 50913-SDA-A01, VALVE ASSY., ELECTRONIC CONTROL MOUNTING SOLENOID . It controls vacuum to the engine mounts, it is #20 on this diagram.
Current Honda vehicles2010 Acura RDX Turbo AWD/Tech 67k miles - Daily Driver2013 Accord EX-L I4 Auto 53k miles Black Pearl - Wife"s car2005 Acura TSX Auto 208k miles - Youngest Daughter2013 FIT Sport Auto - 24k miles - Oldest Daughters car Former Honda Vehicles2001 Acura MDX Totaled t223k1991 Accord LX auto sold 185k miles1995 GSR sold
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Current Honda vehicles2010 Acura RDX Turbo AWD/Tech 67k miles - Daily Driver2013 Accord EX-L I4 Auto 53k miles Black Pearl - Wife"s car2005 Acura TSX Auto 208k miles - Youngest Daughter2013 FIT Sport Auto - 24k miles - Oldest Daughters car Former Honda Vehicles2001 Acura MDX Totaled t223k1991 Accord LX auto sold 185k miles1995 GSR sold
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Well, one of the hoses goes to the intake manifold. Where does the other one go? It"s currently dangling down behind the engine.
2006 Accord Sedan 6MT Navi
Audio Control LC6I / Rockford Fosgate R600X5 / Infinity Reference 9633cf / Infinity Reference 6030cs / Rockford Fosgate Punch P1-2X10 / Parrot MK6000 / Diode Dynamics 6000K HID Low Beams / DDM 3000K HID Factory Fogs / Diode Dynamcs Stage II LED Conversion / Backup Camera / Mid Muffler Delete / Dynomax Exhaust Resonator / Fujita CAI / 17mm TL Rear Sway Bar / Tein S Tech Springs / Tokico Blues / Ingalls Camber Kit / Ingalls Stiffy
On the diagram the other connection goes to vacuum line 44, which is a hose that goes to a tee (21) and then goes out to the motor mounts. You can follow the vacuum lines from the motor mounts back and see if all those hoses 44, 46, and 27 are there as well as the tee connection 21.This system is used to control engine vibrations at idle.
Current Honda vehicles2010 Acura RDX Turbo AWD/Tech 67k miles - Daily Driver2013 Accord EX-L I4 Auto 53k miles Black Pearl - Wife"s car2005 Acura TSX Auto 208k miles - Youngest Daughter2013 FIT Sport Auto - 24k miles - Oldest Daughters car Former Honda Vehicles2001 Acura MDX Totaled t223k1991 Accord LX auto sold 185k miles1995 GSR sold
On the diagram the other connection goes to vacuum line 44, which is a hose that goes to a tee (21) and then goes out to the motor mounts. You can follow the vacuum lines from the motor mounts back and see if all those hoses 44, 46, and 27 are there as well as the tee connection 21.This system is used to control engine vibrations at idle.

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2006 Accord Sedan 6MT Navi
Audio Control LC6I / Rockford Fosgate R600X5 / Infinity Reference 9633cf / Infinity Reference 6030cs / Rockford Fosgate Punch P1-2X10 / Parrot MK6000 / Diode Dynamics 6000K HID Low Beams / DDM 3000K HID Factory Fogs / Diode Dynamcs Stage II LED Conversion / Backup Camera / Mid Muffler Delete / Dynomax Exhaust Resonator / Fujita CAI / 17mm TL Rear Sway Bar / Tein S Tech Springs / Tokico Blues / Ingalls Camber Kit / Ingalls Stiffy
2006 Accord Sedan 6MT Navi
Audio Control LC6I / Rockford Fosgate R600X5 / Infinity Reference 9633cf / Infinity Reference 6030cs / Rockford Fosgate Punch P1-2X10 / Parrot MK6000 / Diode Dynamics 6000K HID Low Beams / DDM 3000K HID Factory Fogs / Diode Dynamcs Stage II LED Conversion / Backup Camera / Mid Muffler Delete / Dynomax Exhaust Resonator / Fujita CAI / 17mm TL Rear Sway Bar / Tein S Tech Springs / Tokico Blues / Ingalls Camber Kit / Ingalls Stiffy
Thanks for all the help guys. I found where #39 in the diagram was disconnected from #24. All is well again... I haven"t driven it yet. Should there be any noticeable difference?
2006 Accord Sedan 6MT Navi
Audio Control LC6I / Rockford Fosgate R600X5 / Infinity Reference 9633cf / Infinity Reference 6030cs / Rockford Fosgate Punch P1-2X10 / Parrot MK6000 / Diode Dynamics 6000K HID Low Beams / DDM 3000K HID Factory Fogs / Diode Dynamcs Stage II LED Conversion / Backup Camera / Mid Muffler Delete / Dynomax Exhaust Resonator / Fujita CAI / 17mm TL Rear Sway Bar / Tein S Tech Springs / Tokico Blues / Ingalls Camber Kit / Ingalls Stiffy
That system controls the motor mounts making them "softer" at idle to reduce vibration in the car. If the vacuum line to the intake was connected and the other side was not you would have a vacuum leak at idle.Sent from AutoGuide.com Free App
Current Honda vehicles2010 Acura RDX Turbo AWD/Tech 67k miles - Daily Driver2013 Accord EX-L I4 Auto 53k miles Black Pearl - Wife"s car2005 Acura TSX Auto 208k miles - Youngest Daughter2013 FIT Sport Auto - 24k miles - Oldest Daughters car Former Honda Vehicles2001 Acura MDX Totaled t223k1991 Accord LX auto sold 185k miles1995 GSR sold
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