Question about 1995 Subaru Legacy

2 Answers

After market installation

Hey, I'm trying out an aftermarket part that requires connection into a primary vacuum line. Clearly, I'm not going to mess with the one going to the brakes; but beyond that, most of the lines that look like they should be good vacuum lines are a much bigger hose than I was supplied?

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  • bwharing Aug 07, 2008

    Water4Gas unit that injects Brown's Gas (hydrated hydrogen) into the combustion cycle to optimize complete combustion and efficiency. Had to finally drill into the plastic airway (finally) because no reliable vacuum could be found that I felt confident wouldn't interfere with some other aspect of the engine's functiioning.

  • paul erickson
    paul erickson May 11, 2010

    A water-fuelled car is a automobile that is claimed to use water as its fuel or produces fuel from water onboard,
    with no other energy input. Water-fuelled cars have been mentioned in
    newspapers, popular science magazines, local news coverage, and the internet
    (YouTube); at least some of the claims were found to be tied to investment frauds. This
    article focuses on vehicles which purport to extract their energy directly from
    water, a process which would violate the first and/or second law of thermodynamics

    In addition to claims of cars that run exclusively on water, there have also
    been claims that burning hydrogen or oxyhydrogen in addition to petrol or diesel
    fuel increases mileage. Around 1970, Yull Brown developed
    technology which allegedly allows cars to burn fuel more efficiently while
    improving emissions. In
    Brown's design, a hydrogen oxygen mixture (so-called "Brown's Gas") is generated
    by the electrolysis of water, and then fed into the engine through the air
    intake system. Whether the system actually improves emissions or fuel efficiency
    is debated. Similarly, Hydrogen Technology
    Applications claims to be able increase fuel efficiency by bubbling "Aquyen"
    into the fuel tank.

    A number of websites exist promoting the use of oxyhydrogen (often called
    "HHO"), selling plans for do-it-yourself electrolysers or entire kits with the
    promise of large improvements in fuel efficiency. According to a spokesman for
    the American Automobile
    Association, "All of these devices look like they could probably work for
    you, but let me tell you they don't."

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2 Answers

It is one of these Water4Gas devices that puts a small amount of Brown's Gas (hydrated hydrogen) into the combustion cycle. Finally, I had to make a hole in the plastic air intake apparatus since I couldn't get a consistent vacuum on the other usable lines -- in a location where I could feel confident that I wouldn't be interfering with the functioning of some other important aspect of the vehicle's functioning.

Posted on Aug 07, 2008

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Wanna share what this amazing part is?

Posted on Aug 07, 2008

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Chris-

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1 Answer

What is 1833


Hi:

DTC P1833 - Transfer Case Differential Lock-Up Solenoid Open Circuit


The Pulse Vacuum Hublocks Do Not Operate Properly (Transfer Case Motor Movement and Front Driveshaft Operate Properly)


Double check the vacuum lines for any breaks, kinks or even disconnected. Also double check the hub lock sea


PINPOINTTEST E: THE PULSE VACUUM HUBLOCKS DO NOT OPERATE PROPERLY (TRANSFER CASE MOTORMOVEMENT AND FRONT DRIVE SHAFT OPERATE PROPERLY CONDITIONS DETAILS/RESULTS/ACTIONS E1 LEAK TEST THE WHEEL ENDS AND LOWER VACUUM SYSTEM - SOLENOID OUTPUT Raise and support the vehicle;
Disconnect PVH Solenoid Vacuum Connector
clip_image001.jpg NOTE: This step may require rapid pumping for up to 10 seconds. Connect a hand vacuum pump to the PVH solenoid upper port hose connector and try to pull a vacuum to 15 in/Hg.
  • Does the vacuum drop exceed 0.5 in/Hg in 30 seconds?
Yes GO to E22.
No GO to E2.
E2 LEAK TEST THE UPPER VACUUM SYSTEM - SOLENOID INPUT clip_image002.jpg Connect a hand vacuum pump to the PVH solenoid lower port hose connector and try to pull a vacuum to 15 in/Hg.
  • Does the vacuum drop exceed 0.5 in/Hg in 30 seconds?
Yes GO to E3.
No GO to E5.
E3 LEAK TEST THE A/C SYSTEM Disconnect A/C Vacuum Input Line
clip_image003.jpg Connect a hand vacuum pump to the A/C vacuum input line connector and try to pull a vacuum to 15 in/Hg.
  • Does the vacuum drop exceed 0.5 in/Hg in 30 seconds?
Yes DIAGNOSE the A/C system; TEST the system for normal operation.
No GO to E4.
E4 CHECK THE VACUUM SYSTEM RESERVOIR AND VACUUM LINES Connect A/C Vacuum Input Line
Disconnect Vacuum Reservoir Output Tee Connector
clip_image004.jpg Connect a hand vacuum pump to the vacuum reservoir output line connector and try to pull a vacuum to 15 in/Hg.
  • Does the vacuum drop exceed 0.5 in/Hg in 30 seconds?
Yes DIAGNOSE the engine vacuum system; No REPAIR and/or REPLACE the vacuum reservoir output tee fitting or vacuum line between vacuum reservoir tee fitting and PVH vacuum solenoid. TEST the system for normal operation.
E5 CHECK THE PVH VACUUM SYSTEM FOR ENGINE VACUUM clip_image005.jpg Connect a vacuum gauge to the PVH solenoid lower port hose connector and measure the vacuum level.
  • Is the vacuum level greater than 11 in/Hg?
Yes GO to E7.
No GO to E6.
E6 CHECK THE ENGINE AND PRIMARY VACUUM LINE FOR VACUUM Engine Vacuum Output Connector
clip_image006.jpg Connect a vacuum gauge to the engine vacuum output connector and measure the vacuum level.
  • Is the vacuum level greater than 11 in/Hg?
Yes REPAIR or REPLACE the vacuum reservoir or vacuum lines between the PVH solenoid vacuum input line and vacuum reservoir input line. TEST the system for normal operation.
No DIAGNOSE the engine vacuum system;
E7 CHECK THE SOLENOID VALVE FOR LEAKAGE Connect PVH Solenoid Vacuum Connector
clip_image007.jpg Disconnect the LH wheel end vacuum line connector.
Connect a tee fitting and vacuum gauge between the LH wheel end vacuum line connector and PVH solenoid vacuum line output connector. Wait a minimum of 60 seconds and measure the vacuum.
  • Is the vacuum level greater than 1 in/Hg?
Yes REPLACE the PVH vacuum solenoid. TEST the system for normal operation.
No GO to E8.
E8 CHECK THE PVH SOLENOID FOR PROPER VACUUM OUTPUT LEVEL - 4X4 ENGAGED clip_image008.jpg Measure the vacuum while switching the 4X4 mode switch to 4X4 HIGH.
  • Does the vacuum gauge indicate at least 11 in/Hg after six seconds but not longer than 60 seconds after switching the 4X4 mode switch to 4X4 HIGH?
Yes GO to E9.
No GO to E10.
E9 CHECK THE PVH SOLENOID FOR PROPER VACUUM OUTPUT LEVELS - 4X4 DISENGAGED NOTE: This step requires the use of a calibrated vacuum gauge that is accurate to within a minimum of 0.1 in/Hg. It is recommended that Pressure/Vacuum Module or equivalent 105-R0099 be used for this check. Observe the vacuum gauge while switching the 4X4 mode switch to 2WD.
  • Does the vacuum gauge indicate between 5.85 and 7.1 in/Hg after six seconds but not longer than 30 seconds after switching the 4X4 mode switch to 2WD?
Yes REMOVE the vacuum gauge. RECONNECT all vacuum lines. TEST the system for normal operation. If the 4X4 system still does not operate properly, CLARIFY the customer concern and RETURN to Symptom Chart.
No GO to E10.
E10 RETRIEVE THE DIAGNOSTIC TROUBLE CODES (DTCS) NGS
Retrieve and document continuous DTCs.
Clear Continuous DTCs
GEM On-Demand Self-Test
  • Are any DTCs retrieved?
Yes If DTC P1832, GO to E17 .

If DTC P1833, GO to E18 .

If DTC P1834, GO to E19 .

If DTC P1835, GO to E17 .

If DTC P1878, GO to E17 .

If DTC P1879, GO to E18 .

If DTC P1880, GO to E19 .

If DTC P1885, GO to E17 .
No GO to E11.
E11 CHECK FOR VOLTAGE TO THE PVH SOLENOID - CIRCUIT 298 (P/O) Disconnect PVH Solenoid C185
clip_image009.jpg Measure the voltage between PVH solenoid C185-2, circuit 298 (P/O), and ground.
  • Is the voltage greater than 10 volts?
Yes GO to E12.
No REPAIR circuit 298 (P/O). TEST the system for normal operation.
E12 CHECK THE GEM 4X4 ENGAGE SEQUENCE AND CIRCUIT 599 (PK/LG) - 2WD TO 4X4 HIGH clip_image010.jpg Measure the voltage between PVH solenoid C185-2, circuit 298 (P/O), and PVH solenoid C185-1, circuit 599 (PK/LG) while switching the 4X4 mode switch to 4X4 HIGH.
  • Is the voltage greater than 9 volts after three seconds but not more than 60 seconds after switching the 4X4 mode switch to 4X4 HIGH?
Yes GO to E13.
No GO to E17.
E13 CHECK THE GEM 4X4 DISENGAGE SEQUENCE AND CIRCUIT 599 (PK/LG) - 4X4 HIGH TO 2WD clip_image011.jpg Measure the voltage between PVH solenoid C185-2, circuit 298 (P/O), and PVH solenoid C185-1, circuit 599 (PK/LG) while switching the 4X4 mode switch to 2WD.
  • Is the voltage greater than 9 volts after three seconds but not more than 60 seconds after switching the 4X4 mode switch to 2WD?
Yes GO to E14.
No GO to E17.
E14 CHECK THE GEM 4X4 ENGAGE SEQUENCE AND CIRCUIT 77 (DB/Y) - 2WD TO 4X4 HIGH clip_image012.jpg Measure the voltage between PVH solenoid C185-2, circuit 298 (P/O), and PVH solenoid C185-3, circuit 77 (DB/Y) while switching the 4X4 mode switch to 4X4 HIGH.
  • Is the voltage greater than 9 volts after three seconds but not more than 60 seconds after switching the 4X4 mode switch to 4X4 HIGH?
Yes GO to E15.
No GO to E17.
E15 CHECK THE GEM 4X4 DISENGAGE SEQUENCE AND CIRCUIT 77 (DB/Y) - 4X4 HIGH TO 2WD clip_image013.jpg Measure the voltage between PVH solenoid C185-2, circuit 298 (P/O), and PVH solenoid C185-3, circuit 77 (DB/Y) while switching the 4X4 mode switch to 2WD.
  • Is any voltage indicated after three seconds after switching the 4X4 mode switch to 2WD?
Yes GO to E16.
No GO to E17.
E16 CHECK THE PVH SOLENOID COILS clip_image014.jpg Measure the resistance between the PVH solenoid terminal 1 and terminal 3.
  • Is the resistance between 90 and 115 ohms?
Yes GO to E20.
No REPLACE the PVH solenoid;TEST the system for normal operation.
E17 CHECK CIRCUITS 599 (PK/LG) AND 77 (DB/Y) FOR SHORTS TO GROUND PVH Solenoid C185
GEM C223
clip_image015.jpg Measure the resistance between PVH solenoid C185-1, circuit 599 (PK/LG), and ground; and between PVH solenoid C185-3, circuit 77 (DB/Y), and ground.
  • Are the resistances greater than 10, 000 ohms?
Yes GO to E18.
No REPAIR circuit 599 (PK/LG) and/or 77 (DB/Y). CLEAR the DTCs. TEST the system for normal operation.
E18 CHECK CIRCUITS 599 (PK/LG) AND 77 (DB/Y) FOR OPEN GEM C223
clip_image016.jpg Measure the resistance between GEM C223-3, circuit 599 (PK/LG), and PVH solenoid C185, circuit 599 (PK/LG). clip_image017.jpg Measure the resistance between GEM C223-7, circuit 77 (DB/Y), and PVH solenoid C185, circuit 77 (DB/Y).
  • Are the resistances less than 5 ohms?
Yes GO to E19.
No REPAIR circuit 599 (PK/LG) and/or 77 (DB/Y). CLEAR the DTCs. TEST the system for normal operation.
E19 CHECK CIRCUITS 599 (PK/LG) AND 77 (DB/Y) FOR SHORTS TO POWER clip_image018.jpg Measure the voltage between PVH solenoid C185-1, circuit 599 (PK/LG), and ground; and between PVH solenoid C185-3, circuit 77 (DB/Y), and ground.
  • Is any voltage indicated?
Yes REPAIR circuit 599 (PK/LG) and/or 77 (DB/Y). CLEAR the DTCs. TEST the system for normal operation.
No REPLACE the GEM; the DTCs. TEST the system for normal operation.
E20 CHECK THE PVH SOLENOID FOR PROPER VACUUM OUTPUT LEVEL - 4X4 ENGAGED PVH Solenoid C185
clip_image019.jpg Connect a vacuum gauge to the PVH vacuum line tee fitting and measure the vacuum while switching the 4X4 mode switch to 4X4 HIGH.
  • Does the vacuum gauge indicate at least 11 in/Hg after six seconds but not longer than 60 seconds after switching the 4X4 mode switch to 4X4 HIGH?
Yes GO to E21.
No REPLACE the PVH solenoid; TEST the system for normal operation.
E21 CHECK THE PVH SOLENOID FOR PROPER VACUUM OUTPUT LEVELS - 4X4 DISENGAGED NOTE: This step requires the use of a calibrated vacuum gauge that is accurate to within a minimum of 0.1 in/Hg. It is recommended that Pressure/Vacuum Module or equivalent 105-R0099 be used for this check. Observe the vacuum gauge while switching the 4X4 mode switch to 2WD.
  • Does the vacuum gauge indicate between 5.85 and 7.1 in/Hg after six seconds but not longer than 60 seconds after switching the 4X4 mode switch to 2WD?
Yes REMOVE the vacuum gauge. RECONNECT all vacuum lines. TEST the system for normal operation. If the 4X4 system still does not operate properly, CLARIFY the customer concern and RETURN to Symptom Chart.
No REPLACE the PVH solenoid; TEST the system for normal operation.
E22 CHECK THE RH SIDE WHEEL END FOR LEAKS clip_image020.jpg Disconnect the RH wheel end vacuum line connector. clip_image021.jpg NOTE: This step may require rapid pumping for up to 10 seconds. Connect a hand vacuum pump to the RH wheel end vacuum line connector and try to pull a vacuum to 15 in/Hg.
  • Does the vacuum drop exceed 0.5 in/Hg in 30 seconds?
Yes GO to E24.
No GO to E23.
E23 CHECK THE LH SIDE WHEEL END FOR LEAKS clip_image022.jpg Reconnect the RH wheel end vacuum line connector. clip_image023.jpg Disconnect the LH wheel end vacuum line connector. clip_image024.jpg NOTE: This step may require rapid pumping for up to 10 seconds. Connect a hand vacuum pump to the LH wheel end vacuum line connector and try to pull a vacuum to 15 in/Hg.
  • Does the vacuum drop exceed 0.5 in/Hg in 30 seconds?
Yes GO to E24.
No VERIFY all vacuum line connections are OK. TEST the system for normal operation. If a vacuum leak is still present, REPLACE the PVH solenoid vacuum line. TEST the system for normal operation.
E24 CHECK THE CHASSIS VACUUM LINE FOR LEAKS clip_image025.jpg Carefully disconnect the chassis vacuum line from the steel vacuum line. NOTE: This step may require rapid pumping for up to 10 seconds. Connect a hand vacuum pump to the steel vacuum line and try to pull a vacuum to 15 in/Hg.
  • Does the vacuum drop exceed 0.5 in/Hg in 30 seconds?
Yes RECONNECT the chassis vacuum line to the steel vacuum line. GO to E25 .
No REPLACE the chassis vacuum line. TEST the system for normal operation.
E25 BUBBLE TEST THE RUBBER/STEEL VACUUM LINE INTERFACE WARNING: Do not use shop pressure when performing this check. CAUTION: Do not apply more than 2 psi to the vacuum lines when performing this check. Apply 2 psi continuous pressure to the vacuum wheel end output line.
clip_image026.jpg Apply soapy water to the rubber/steel vacuum line fitting.
  • Are air bubbles visible at the rubber/steel vacuum line interface?
Yes REPAIR the rubber/steel vacuum line interface. TEST the system for normal operation.
No GO to E26.
E26 BUBBLE TEST THE WHEEL END KNUCKLE VACUUM LINE FITTING WARNING: Do not use shop pressure when performing this check. CAUTION: Do not apply more than 2 psi to the vacuum lines when performing this check. Apply 2 psi continuous pressure to the vacuum wheel end input line.
clip_image027.jpg Apply soapy water to the wheel end knuckle vacuum line fitting.
  • Are bubbles visible at the wheel end knuckle vacuum line fitting?
Yes REPAIR the wheel end knuckle vacuum line fitting; TEST the system for normal operation.
No GO to E27.
E27 BUBBLE TEST THE HUBLOCK END AND HUBLOCK/WHEEL HUB INTERFACE WARNING: Do not use shop pressure when performing this check. CAUTION: Do not apply more than 2 psi to the vacuum lines when performing this check. Apply 2 psi pressure to the vacuum wheel end input line.
clip_image028.jpg Apply soapy water to the hublock and hublock/wheel hub interface.
  • Are bubbles visible at the hublock/wheel hub interface or at the hublock end?
Yes If bubbles are visible at the hublock/wheel hub interface, REPLACE the hublock/wheel hub O-ring; TEST the system for normal operation.

If bubbles are visible at the hublock end, REPLACE the hublock; TEST the system for normal operation.
No GO to E28.
E28 BUBBLE CHECK THE KNUCKLE/WHEEL BEARING INTERFACE WARNING: Do not use shop pressure when performing this check. CAUTION: Do not apply more than 2 psi to the vacuum lines when performing this check. Apply 2 psi pressure to the vacuum wheel end input line.
clip_image029.jpg Apply soapy water to the knuckle/wheel bearing interface.
  • Are bubbles visible at the knuckle/wheel bearing interface?
Yes REPLACE the wheel bearing/knuckle interface O-ring; No If equipped with 4WABS, GO to E29 .

If equipped with RABS, GO to E30 .
E29 BUBBLE CHECK THE ANTI-LOCK BRAKE SYSTEM (ABS) SENSOR WARNING: Do not use shop pressure when performing this check. CAUTION: Do not apply more than 2 psi to the vacuum lines when performing this check. Apply 2 psi pressure to the vacuum wheel end input line.
clip_image030.jpg Apply soapy water to the ABS sensor.
  • Are bubbles visible at the ABS sensor?
Yes REPLACE the ABS sensor O-ring; TEST the system for normal operation.
No GO to E30.
E30 BUBBLE TEST THE WHEEL BEARING OUTER SEAL WARNING: Do not use shop pressure when performing this check. CAUTION: Do not apply more than 2 psi to the vacuum lines when performing this check. Apply 2 psi pressure to the vacuum wheel end input line.
clip_image031.jpg Apply soapy water to the wheel bearing outer seal.
  • Are bubbles visible at the wheel bearing outer seal?
Yes REPLACE the wheel hub and bearing;TEST the system for normal operation.
No GO to E31.
E31 BUBBLE CHECK THE WHEEL END SHAFT SEAL clip_image032.jpg Remove the two screws and slide the wheel end shaft seal cover back. WARNING: Do not use shop pressure when performing this check. CAUTION: Do not apply more than 2 psi to the vacuum lines when performing this check. Apply 2 psi pressure to the vacuum wheel end input line.
clip_image033.jpg Apply soapy water to the wheel end shaft.
  • Are bubbles visible at the wheel end shaft?
Yes REPLACE the wheel end shaft seal;TEST the system for normal operation.
No GO to E32.
E32 CHECK THE HUBLOCK FOR VACUUM LEAKS Remove the hublock assembly;
clip_image034.jpg Connect hublock Vacuum Test Cap to the wheel end. Connect a hand vacuum pump to the wheel end vacuum supply hose and try to pull a vacuum to 10-12 in/Hg.
  • Does the vacuum drop exceed 0.5 in/Hg in 30 seconds?
Yes GO to E33.
No REPLACE the hublock and O-ring;TEST the system for normal operation.
E33 CHECK THE WHEEL END KNUCKLE FOR VACUUM LEAKS Remove the 1/2 shaft retaining ring;
Remove the hub and bearing;
Remove the 1/2 shaft.

clip_image035.jpg Install Seal Depth Set/Vacuum Test Cap to the wheel end knuckle.
Install Seal Replacer/CV Tester into the inboard wheel end seal. Connect a hand vacuum pump to the wheel end vacuum supply hose and try to pull a vacuum to 10-12 in/Hg.
  • Does the vacuum drop exceed 0.5 in/Hg in 30 seconds?
Yes REPLACE the wheel end knuckle seal;TEST the system for normal operation.
No GO to E34.
E34 RECHECK THE WHEEL END KNUCKLE FOR VACUUM LEAKS - WHEEL BEARING SEAL REPLACED Replace and grease the wheel hub and bearing O-ring;
clip_image035.jpg Install Seal Depth Set/Vacuum Test Cap to the wheel end knuckle. Install Seal Replacer/CV Tester into the inboard wheel end seal.
Connect a hand vacuum pump to the wheel end vacuum supply hose and try to pull a vacuum to 10-12 in/Hg.
  • Does the vacuum drop exceed 0.5 in/Hg in 30 seconds?
Yes REPLACE the wheel hub and bearing; TEST the system for normal operation.
No System is OK.

Mar 25, 2012 | 1986 Chevrolet Chevy

1 Answer

I unhooked the after market alarm and now the van wont start


You need to COMPLETLY remove ALL of the aftermarket equipment and repair the vehicle wiring harnesses where they have been cut. The problem you are experiencing is the very reason why I tell all of my customers to NOT install ANY aftermarket equipment on their vehicles.
There are several problems with this:

> The aftermarket installers RARELY provide the vehicle owner with a wiring diagram for the systems they install.

> Even WITH the schematics for the system, different installers will cut into the circuits at different locations on the vehicles, so nobody knows where to tell you to repair the vehicle harness when these problem occur.

> Aftermarket alarm systems and remote start systems can cause no-start conditions that cannot be diagnosed using the diagnostic troubleshooting charts that are published by the vehicle manufacturer. These systems also usually tie-in with the ignition and fuel supply circuits and can cause all kinds of OBD fault codes including misfire codes and oxygen sensor malfunction codes.

> Many installers use "quick-connects" to connect wires to vehicle harnesses or cut the vehicle harnesses and simply twist wires together and wrap them with electrical tape. Using either of these methods is not suitable for automotive wiring and is ASKING for a failure that will leave the vehicle owner stranded.

I have had to clean-up these messes up several times. It is not allways easy or inexpensive. It may take several hours to repair the damage that has been done to the vehicle as a result of installing aftermarket equipment.

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1 Answer

Is there an after market airfilter that I can install?


There are lots of aftermarket filters available. Are you wanting an aftermarket direct replacement for the original filter? or are you wanting an aftermarket air filter modification kit? Both are available. I don't recommend using the modification kits however. These tend to mess with engine controls and cause all kinds of running problems and "Check Engine" nlights to come on.

Aftermarket direct replacement filters are available in several different brands including Wix, Purolator, STP, Fram, MicroGard, etc. - just call your localparts supplier.

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1 Answer

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This is a common problem with this radio. I purchased a used 2003 Grand Marquis and the radio stopped working after a few days. I checked all the usual problems such as faulty antenna and connections. I then looked on line and many others have the same problem with this radio. The only advice is to purchase a used radio from salvage yard the same as the one you have now or you can also go with a good aftermarket radio for around the same price as you are going to pay for a used radio. A used radio would require just removing the radio which is a snap, and then plugging in the replacement radio using the same connections. An after market radio will require adapters and splicing wires. I chose putting in an aftermarket JVC radio and I really enjoy the sound and being able to play cd/mp3's and my ipod through the radio.

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1 Answer

2003 Mitsu Lancer sedan modded with turbo. Turbo vacuum lines not connected. need a diagram to assist in figuring out wtf is going on


was this a dealer option, or added later? if dealer option, you should be able to obtain the info from your dealer. if added later, the vacuum line connections should have been included in the after market suppliers installation instructions! did you buy it used? with the turbo installed, but not hooked up? did the lines just sort of 'come loose'?if the vacuum lines came loose, they are probably different lengths- should be able to figure which goes where. then replace with new lines- the rubber is probably 'tired'.
gets hot under there! if it's OEM (original equipment manufacturer)- 'optional' from the dealership, then they should have the info- or be willing to replace the lines- for a reasonable price! some knowledge and a few feet of vacuum hose shouldn't cost an arm & a leg! since you didn't state whether 'option' or 'after market', it's hard to give solid advice!
good luck!

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2 Answers

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look for a vacume tree at rear of intake manifold and y in.You want manifold vacume not venture vacume so stay away from throttle body.

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