Question about 1991 Toyota MR2

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Intake manifold vacuum line part2

Vacuum line connection at the rear right side of the intake manifold has been cut and don't know where it connects to. If someone can please send me a diagram of some kind that might help me with this problem it will be really appreciated.

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Www.mr2-tech.com There is the Big green books there.

Posted on Jan 10, 2010

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3 Answers

Where does the vacuum line come from on a 2003 envoy


from a fitting on the inlet manifold.

Aug 15, 2014 | 2003 GMC Envoy

2 Answers

Mazda 626 gf 1.8l vacuum hose


Yes this is a vacuum just be careful to ensure it is sealed or you will have hardly Any braking :-)

Aug 13, 2012 | 1999 Mazda 626

1 Answer

I need a vacuum line diagram fo a 1996 Chevy Lumina, 3.1. One line that is not connected to anything, is located at the top of the engine.


Sorry I don't have the diagram, but I do have a diagram of the engine and component locations. Your vacuum system is fairly simple. You have a MAP sensor attached to the air cleaner. I have pasted a picture below. It has one electrical connector and one vacuum hose that goes to the intake manifold or the throttle body.
Behind the right headlight is your evap canister. This will have a hose or line running to the fuel tank. Then it will have another hose going to the purge valve. The purge valve should be close by and it has a connector plus another hose that goes to the intake manifold.
Then you have the PCV hose that goes from the PCV valve in the valve cover to the air cleaner or intake manifold. I think yours just has a hose from the air cleaner and the rest is internal.
There is one more vacuum hose, and that is the bog one that goes from the intake manifold (or throttle body--looks to me like there are a couple of vacuum ports on the back side of the throttle body, and there may be a "T" on one of the hoses) to the brake booster. It this one was off, the engine would not run, as the vacuum draw is large. Please let me know if you cannot figure it out from these instructions and provide a picture, if you can.

MAP sensor:
jturcotte_653.jpg

purge valve:
jturcotte_654.jpg

jturcotte_2455.gif
jturcotte_2456.gif

Oct 30, 2011 | 1996 Chevrolet Lumina Mini

1 Answer

Intakegasket for grandam gt


Exactly what is the wrong? Need the part? Need to know torque adjust or porcedure to take off?

For
1994 Pontiac Grand Am 3.1L SFI OHV 6cyl check this procedure for Intake Manifold...
(see Figure 14)
The 3.1L engine is equipped with upper and lower intake manifolds. The upper intake manifold is also known as the intake manifold plenum.

CAUTION The fuel system is under pressure and must be properly relieved before disconnecting the fuel lines. Failure to properly relieve the fuel system pressure can lead to personal injury and component damage.
  1. Relieve the fuel system pressure.
  2. Disconnect the negative battery cable.
  3. Remove top half of the air cleaner assembly and throttle body duct.
  4. Drain and recycle the engine coolant.
  5. Disconnect the EGR pipe from exhaust manifold.
  6. Remove the serpentine belt.
  7. Remove the brake vacuum pipe at the intake plenum.
  8. Disconnect the control cables from the throttle body and intake plenum mounting bracket.
  9. Remove the power steering lines at the alternator bracket.
  10. Remove the alternator.
  11. Label and disconnect the ignition wires from the spark plugs and wire retainers on the intake plenum.
  12. Remove the ignition assembly and the EVAP canister purge solenoid together.
zjlimited_601.jpg

Fig. 14: View of the intake manifold and related components

  1. Disconnect the upper engine wiring harness connectors at the following components:
    Throttle Position Sensor (TPS) Idle Air Control (IAC) Fuel Injectors Coolant temperature sensor Manifold Absolute Pressure (MAP) sensor Camshaft Position (CMP) sensor
  2. Tag and disconnect the vacuum lines from the following components:
    Vacuum modulator Fuel pressure regulator PCV valve
  3. Disconnect the MAP sensor from upper intake manifold.
  4. Remove the upper intake plenum mounting bolts and lift off the plenum.
  5. Disconnect the fuel lines from the fuel rail and bracket.
  6. Install engine support fixture special tool J 28467-A or an equivalent.
  7. Remove the right side engine mount.
  8. Remove the power steering mounting bolts and support the pump out of the way without disconnecting the power steering lines.
  9. Disconnect the coolant inlet pipe from the outlet housing.
  10. Remove the coolant bypass hose from the water pump and the cylinder head.
  11. Disconnect the upper radiator hose at thermostat housing.
  12. Remove the thermostat housing.
  13. Remove both rocker arm covers.
  14. Remove the lower intake manifold bolts. Make sure the washers on the four center bolts are installed in their original locations.
When removing the valve train components they should be kept in order for installation the original locations.
  1. Remove the rocker arm retaining nuts or bolts and extract the rocker arms and pushrods.
  2. Remove the intake manifold from the engine. Remove and discard the gasket.
  3. Using a suitable scraper, clean gasket material from all mating surfaces. Remove all excess RTV sealant from front and rear ridges of cylinder block
To install:
  1. Place a 0.12 inch (3mm) bead of RTV, on each ridge, where the front and rear of the intake manifold contact the block.
  2. Using a new gasket, place the intake manifold on the engine.
  3. Install the pushrods in their original locations. Coat the pushrods with prelube.
The intake pushrods are marked yellow (5 3 /4 inch long) and the exhaust are green (6 inches long). Make sure the pushrods are properly seated in the valve lifters and rocker arms.
  1. Position the rocker arms in there original locations and tighten to specifications. Refer to the procedure earlier in this section.
  2. Install lower the intake manifold attaching bolts. Apply sealant 12345739 (or equivalent thread locking compound) to the threads of bolts. Tighten the vertical bolts first then the diagonal bolts to 115 inch lbs. (13 Nm).
  3. Install the front rocker arm cover.
  4. Install the thermostat housing.
  5. Connect the upper radiator hose to the thermostat housing.
  6. Fasten the coolant inlet pipe to thermostat housing.
  7. Connect coolant bypass pipe at the water pump and cylinder head.
  8. Install the power steering pump in the mounting bracket.
  9. Loosely install the serpentine belt.
  10. Connect the right side engine mount.
  11. Remove the special engine support tool.
  12. Fasten the fuel lines to fuel rail and bracket.
  13. Install the upper intake manifold and tighten the mounting bolts to 18 ft. lbs. (25 Nm).
  14. Install the MAP sensor.
  15. Connect the upper engine wiring harness connectors to the related components removed earlier.
  16. Connect the vacuum lines to the PCV, vacuum modulator and fuel pressure regulator.
  17. Install the EVAP canister purge solenoid and ignition assembly.
  18. Install the alternator assembly.
  19. Connect the power steering line to the alternator bracket.
  20. Install the serpentine belt.
  21. Connect the spark plug wires to the spark plugs and intake plenum wire retainer.
  22. Install the EGR pipe to the exhaust manifold.
  23. Attach the control cables to the throttle body lever and upper intake plenum mounting bracket.
  24. Install air intake assembly and top half of the air cleaner assembly.
  25. Install the brake vacuum pipe.
  26. Fill the cooling system.
  27. Connect the negative battery cable, then start the vehicle and verify that there are no leaks.

For PARTS REPLACEMENT check in THIS LINK: carpartswholesale.com

Hope helps.

Feb 01, 2011 | 1994 Pontiac Grand Am

1 Answer

Do I have to take the top in take manafold off to tighten the lower intake manafold on a 1993 buick regal 3.8 L engine?


Yes you do, the following info explains the necessary procedure.



Click here to enlarge image.
tecnovative_75.gif
Click here to enlarge image.

tecnovative_76.gif
  1. Properly relieve the fuel system pressure.
  2. Disconnect the negative battery cable. Place a clean drain pan under the radiator, open the drain **** and drain the cooling system.
  3. Remove the air cleaner assembly and the fuel injector sight shield.
  4. Disconnect the cables from the throttle body and mount bracket.
  5. Remove the coolant recovery reservoir.
  6. Remove the inner fender electrical cover on the right side.
  7. Remove the right rear crossover pipe heat shield.
  8. Disconnect the fuel lines from the fuel rail and from the cable bracket.
  9. Remove the alternator and brace.
  10. Remove the throttle body cable mounting bracket with the vacuum lines and disconnect the vacuum lines.
  11. Tag and detach the electrical connections at the throttle body and both banks of fuel injectors.
  12. Disconnect the vacuum hoses from the canister purge solenoid valve and transaxle module and intake connection.
  13. Unbolt the power steering pump and move forward. DO NOT disconnect the fluid lines.
  14. Tag and disconnect the spark plug wires position lay aside.
  15. Disconnect the coolant bypass hose from the intake manifold.
  16. Remove the solenoid valve mounting bracket and power steering support brace from the intake manifold.
  17. Disconnect the heater pipes from the intake and front cover.
  18. Remove the alternator support brace from the intake.
  19. Disconnect the upper radiator hose from the housing.
  20. Remove the thermostat housing and thermostat from the intake.
  21. Detach the electrical connector from the temperature sensor and sensor switch.
  22. Unfasten the intake manifold bolts, then remove the manifold as an assembly. Remove and discard the gaskets.
  23. If separating the upper manifold from the lower, proceed as follows:
  24. Remove the fuel rail and fuel injectors.
  25. Detach the coolant sensor switch.
  26. Remove the manifold end cap cover.
  27. Remove the upper intake manifold and throttle body assembly from the lower manifold. Remove and discard the gaskets. To install:
  28. Thoroughly clean all gasket mating surfaces.
  29. If replacing the upper manifold, proceed as follows:
  30. Apply a 1⁄16 in. bead of Loctite® Instant Gasket Eliminator 51845 or equivalent to the lower manifold mating surface. Make sure to circle all bolt holes.
  31. Carefully lower the upper manifold and throttle body assembly onto the lower manifold.
  32. Tighten the upper manifold retaining bolts to 19 ft. lbs. (26 Nm).
  33. Install the manifold end cap cover and the coolant sensor switch.
  34. Install the fuel injectors and rail to the manifold assembly.
  35. Clean the mating surfaces and install the intake manifold gaskets and seals. Apply sealer to the ends of the of the intake manifold seals.
  36. Position the intake manifold and apply a suitable thread lock compound to the bolt threads. Tighten the retaining bolts to 88 inch lbs. (10 Nm), twice, in the sequence shown in the accompanying figure.
  37. Attach the electrical connector to the temperature sensor and sensor switch.
  38. Install the thermostat housing and thermostat with a new gasket.
  39. Connect the alternator support brace to the intake.
  40. Install the solenoid valve mounting bracket and power steering support brace to the intake manifold.
  41. Connect the heater pipes to the intake and front cover.
  42. Attach the coolant bypass hose to the intake manifold.
  43. Install the power steering pump support bracket and tighten to 37 ft. lbs. (50 Nm).
  44. Install the spark plug wires on both sides.
  45. Install the belt tensioner pulley and tighten to 33 ft. lbs. (45 Nm).
  46. Install the power steering pump.
  47. Connect the vacuum hoses to the canister purge solenoid valve and transaxle module and intake connection.
  48. Attach the electrical connections at the throttle body and both banks of fuel injectors.
  49. Install the alternator and brace.
  50. Connect the throttle body cable mounting bracket with the vacuum lines.
  51. Install the right rear crossover pipe heat shield.
  52. Install the cables to the throttle body.
  53. Connect the fuel lines to the fuel rail and mount bracket.
  54. Install the inner fender electrical cover on the right side.
  55. Install the coolant recovery reservoir and upper radiator hose. Fill the cooling system.
  56. Install the air cleaner assembly and the fuel injector sight shield.
  57. Connect the negative battery cable.

Jan 31, 2011 | 1993 Buick Regal

1 Answer

Torque sequence for 1996 chevrolet van intake manifold with a 4.3 litre moter


Ha, you tried to fool me with the bit about a 3.5 L motor--I could find that one...here is the complete procedure from AutoZone.com:




Installation To install:
  1. Clean the gasket mounting surfaces. Be sure to inspect the manifold for warpage and/or cracks. If necessary, replace it.
  2. Position the gaskets on the cylinder head with the port blocking plates to the rear and the This Side Up stamps facing upward. Then apply a 3 / 16 in. (5mm) bead of RTV sealant on the front and rear of the engine block at the block-to-manifold mating surface. Extend the bead 1 / 2 in. (13mm) up each cylinder head to seal and retain the gaskets.

    0996b43f80208c7b.jpg enlarge_icon.gifenlarge_tooltip.gif Fig. Lower intake manifold tightening sequence-4.3L engines
  3. Install the lower intake manifold. Tighten the bolts in sequence and in 3 steps, as follows:


    1. Step 1: 26 inch lbs. (3 Nm).
    2. Step 2: 106 inch lbs. (12 Nm).
    3. Step 3: 133 inch. lbs. (15 Nm).

  4. Install or connect the following:

    Power steering pump Alternator bracket bolt near the thermostat housing Wiring harness to the lower manifold components, including the injector, EGR valve and ECT sensor Air conditioning compressor bracket-to-the lower intake manifold pencil braces
  5. Install transmission oil dipstick tube, if necessary.

    Fuel supply and return lines to the rear of the lower intake
  6. Temporarily reattach the negative battery cable, then pressurize the fuel system (by cycling the ignition without starting the engine) and check for leaks.
  7. Disconnect the negative battery cable.
  8. Install or connect the following:

    Heater hose to the lower intake Upper radiator hose to the thermostat housing Distributor assembly and engage the wiring Ignition coil Connect vacuum hoses to the upper and lower intake manifold. New upper intake manifold gasket, making sure the green sealing lines are facing upward Upper intake manifold Manifold retainers. Tighten them to 88 inch lbs. (10 Nm) using two passes. Purge solenoid and bracket Brake booster vacuum hose at the upper intake manifold PCV hose to the rear of the upper intake manifold Vacuum hoses to both the front and rear of the manifold assembly Throttle body Throttle linkage to the upper intake Wiring to the upper intake components including the TP sensor, IAC motor, MAP sensor and the fuel meter Engine cover Air intake assembly
  9. Connect negative battery cable.
  10. Refill the engine cooling system.
  11. Start the engine and check for leaks.

Aug 26, 2010 | 1996 Chevrolet Astro

2 Answers

Cylinderhead torque stc.


Cylinder Head Removal & Installation SOHC To Remove:
  1. Relieve fuel system pressure.
  2. Remove timing belt cover. Camshaft timing marks kia-03-20-7032.gif

  3. Turn crankshaft until timing mark on front housing and the arrow "2" on the camshaft pulley align.
  4. Loosen lock bolt on tensioner.
  5. Pry tensioner away from timing belt and tighten lock bolt to relieve tension on the timing belt.
  6. Remove timing belt from camshaft pulley.
  7. Disconnect battery negative cable.
  8. Remove 3 bolts that secure accelerator cable and air intake hose to cylinder head cover.
  9. Detach accelerator cable and place off to side.
  10. Remove the following;
    • Air hose
    • Air ISC air hose
    • Breather hose
    • Vacuum hose from air intake hose
  11. Disconnect mass air flow sensor electrical connector.
  12. Remove air intake hose.
  13. Remove PCV valve from cylinder head cover.
  14. Remove ISC air hose from idle speed actuator.
  15. Remove air hose from behind intake manifold.
  16. Remove 2 screws from high tension wire protectors.
  17. Detach wire loom from holder at rear of cylinder head cover.
  18. Detach vacuum tube at rear of cylinder head cover.
  19. Remove vacuum pipe. Cylinder Head Cover kia-03-20-7042.gif

  20. Remove 7 cylinder head cover bolts.
  21. Remove cylinder head cover and gasket.
  22. Disconnect 2 ignition coil electrical connectors.
  23. Disconnect 2 fuel injection electrical connectors at rear of cylinder head.
  24. Disconnect the following electrical connectors;
    • Oxygen sensor
    • Throttle position sensor
    • Idle speed actuator
    • Oil pressure switch
    • EGR vacuum solenoid valve at intake manifold
  25. Disconnect heater hose from elbow.
  26. Disconnect brake booster vacuum hose and cruise control vacuum hose from surge tank.
  27. Detach wire harness from rear of cylinder head.
  28. Disconnect purge control solenoid vacuum hose from intake manifold.
  29. Disconnect fuel hose from fuel connector assembly.
  30. Remove grounding bracket.
  31. Remove 4 bolts and intake manifold bracket.
  32. Remove starter.
  33. Detach water bypass hose from bypass pipe.
  34. Disconnect water hoses from oil cooler.
  35. Disconnect fuel hose from fuel pipe.
  36. Remove exhaust manifold heat shield.
  37. Remove exhaust flange nuts and front exhaust bracket bolt.
  38. Lower exhaust system. Cylinder head bolt loosening sequence kia-03-20-7050.gif

  39. Loosen cylinder head bolts in 3 steps in proper sequence.
  40. Remove cylinder head bolts and washers.
  41. Remove cylinder head, intake manifold and exhaust manifold as an assembly.
To Install:
  1. Install NEW cylinder head gasket.
  2. Install cylinder head, intake manifold and exhaust manifold as an assembly.
  3. Tighten cylinder head bolts in 3 steps in reverse sequence that was used during removal. Tighten bolts to 62 ft lb (84 Nm).
  4. Install front exhaust bracket bolt. Tighten bolt to 20 ft lb (27 Nm).
  5. Install NEW lower exhaust flange gasket and 3 nuts. Tighten nuts to 24 ft lb (31 Nm).
  6. Install exhaust manifold heat shield. Tighten nuts to 35 in lb (4 Nm).
  7. Connect fuel hose to pipe.
  8. Connect 2 hoses to oil cooler.
  9. Attach water bypass hose to bypass pipe.
  10. Install starter and bolts. Tighten bolts to 34 ft lb (46 Nm).
  11. Install intake manifolds bracket and 4 bolts. Tighten bolts to 32 ft lb (45 Nm).
  12. Install grounding bracket.
  13. Connect fuel hose to fuel connector assembly.
  14. Connect the following electrical connectors;
    • Oxygen sensor
    • Throttle position sensor
    • Idle speed actuator
    • Oil pressure switch
    • EGR vacuum solenoid valve at intake manifold
  15. Connect purge control solenoid vacuum hose to intake manifold.
  16. Attach wire harness from rear of cylinder head.
  17. Connect brake booster vacuum hose and cruise control vacuum hose to surge tank.
  18. Connect heater hose to elbow.
  19. Connect 2 fuel injection electrical connectors at rear of cylinder head.
  20. Connect 2 ignition coil electrical connectors.
  21. Install cylinder head cover.
  22. Install 7 cylinder head cover bolts. Tighten bolts to 60 in lb (7 Nm).
  23. Install vacuum pipe and 2 bolts at rear of cylinder head cover. Tighten bolts to 60 in lb (7 Nm).
  24. Connect vacuum tube to pipe.
  25. Connect loom holder to rear of cylinder head cover.
  26. Install 2 screws to high tension wire protectors.
  27. Install air hose to behind intake manifold.
  28. Install ISC air hose to idle speed actuator.
  29. Install PCV valve to cylinder head cover.
  30. Install air intake hose.
  31. Connect mass air flow sensor electrical connector.
  32. Install the following;
    • Air hose
    • Air ISC air hose
    • Breather hose
    • Vacuum hose from air intake hose
  33. Attach accelerator cable.
  34. Install 3 bolts that secure accelerator cable and air intake hose to cylinder head cover. Timing belt pulley timing marks kia-03-20-7035.gif

    NOTE: Timing belt pulley timing mark and timing mark must be aligned.
    Camshaft timing marks kia-03-20-7032.gif

    NOTE: The arrow at "2" on camshaft pulley must be aligned with timing mark on front housing.
  35. Install timing belt.
  36. Install timing belt cover.
  37. Pressurize fuel system.
  38. Start engine and check ignition timing.

Jul 11, 2010 | 1999 Kia Sportage

2 Answers

Selector knob won't chage from defrost, knob moves but won't chage function.


Probably a vacuum line. Most heater controls are ran by vacuum and their is one vacuum line that goes from the troddle body to the firewall on the passenger side of the car. Check for a broken hose.

Jan 07, 2010 | 2004 Jeep Grand Cherokee

1 Answer

When selector switch for ac/heat is in panel position it will blow thru vents until speed is increased then will blow only thru defroster. help!


Look for a vacuum line passenger side rear under hood near hood hinge area. Follow this line back to the intake manifold. checking for crack and leaks if any breaks in this line repair them this should fix your problem if not check all vacuum lines under the dash as well as the vacuum diaphrams that control heater door operations. if you have a hand vacuum pump you can check all these at (previous found) intake connection for the heat controls

Oct 17, 2009 | 1997 Ford Expedition

3 Answers

I need a vacuum line schematic for a 2003 Chevy Astro Van. My AC only blows out of the defroster vents. I've replaced 2 lines so far but it has not fixed the problem yet.


Replace the complete heater control vacuum line over the motor with rubber vacuum tubing.
The heater vacuum line connects on the drivers side of the engine halfway back on the intake manifold.Run the new line to the heater vac connection at the passenger side at the right front in the engine compartment.
I change 2 a week....this should be where your problem is.

Sep 09, 2009 | 2003 Chevrolet Astro

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