1998 chevy tahoe 5.7 intake manifold removal

REMOVE UPER INTAKE 97 EXPLORER V6 4.0 - YouTube

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https://www.youtube.com/watch?v=ugExJ0wkP8A
Jun 11, 2013 - Uploaded by Sum Guy
REMOVE UPER INTAKE 97 EXPLORER V6 4.0 ... I was told that all I have to do is remove the fan belt to get access to it ... FordExplorer 2000 intake manifold gasket upper lower P0174 by froggy - Duration: 36:54. by froggy 36,588 views ... Ford Explorer 4.0L SOHC Rough Idle P0171 P0174 Lean Codes ...

Putting the lower intake on my 1997 Ford Explorer 4.0 OHV ...

? 5:23
https://www.youtube.com/watch?v=qKE1vPxqPHs
Jun 27, 2010 - Uploaded by origionaldz
Putting the lower intake on my 1997 Ford Explorer 4.0 OHV sport .... I do have a 2000 5.0 ... @michaelheiland123654 To dothis job, you have to remove the alternator, unbolt the AC compressor, remove upper intake manifold, remove fuel rail,remove all injectors, ... Do you have the SOHC or OHV version?

1999 Ford Explorer 4.0L -need assistance on removing upper intake ...

www.automotiveforums.com > ... > Ford > Explorer ' Explorer Sport Trac

Sep 20, 2011 - 1999 Ford Explorer 4.0L -need assistance on removing upper intake ...Are you sure you have the OHV/pushrod engine and not the SOHC engine? ... Do youhave the upper intake manifold loose, you just are unable to ... the lower intake gasket, valve cover gaskets, Injector o-rings, plugs and wires. Thanks ...

How to replace upper intake manifold gaskets - Ford Explorer

Here is the removal procedure, and the procedure is the same for both the V-6 and the V-8 Vortec engines. Also, be certain to put engine oil on the "o"-ring seal for the fuel injector assembly before installing the upper intake. Let me know if you require any further assistance.

REMOVAL:

1. Disconnect the battery negative cable assembly from the battery negative terminal.

2. Remove the air cleaner assembly.

3. Remove the wiring harness connectors and the brackets and move aside.

4. Remove the throttle cable and the bracket from the upper intake manifold.

5. Remove the cruise control cable, (if equipped).

6. Remove the fuel lines from the intake to the rear of the block.

7. Remove the ignition coil and the bracket.

8. Remove the upper intake manifold.

INSTALLATION:

1. Install the upper intake manifold gasket.

2. Install the upper intake manifold. Use care not to pinch the injector lines between the upper and lower intake manifolds.

3. Install the upper intake manifold bolts. Note the marks made at disassembly for proper stud location. Install the two corner studs first in order to help align the two halves. NOTE: Other than the two torque passes listed below, the OE Manufacturer did NOT address or supply a bolt tightening sequence for the upper Intake Manifold for this model year, or other model years where this 2 piece manifold setup is used. A "Play It Safe" final tightening sequence would be to tighten from the center most bolts to the outer most bolts.

4. Tighten the bolts in two steps: a. Tighten the bolts on the first sequence to 5 Nm (44 inch lbs.). b. Tighten the bolts on the final sequence to 10 Nm (88 inch lbs.).

5. Install the purge solenoid and bracket.

6. Install the ignition coil and bracket.

7. Install the PCV hose et the upper intake manifold.

8. Install the fuel lines from the intake at the rear of the block.

9. Install the cruise control cable (if equipped).

10. Install the throttle cable and bracket from the upper intake manifold.

11. Install the wiring harness connectors and brackets.

12. Install the air cleaner assembly.

13. Connect the battery negative cable assembly to the battery negative terminal. - Tighten the bolt to 15 Nm (11 ft. lbs.).

The fuel pressure regulator is located under the upper intake plenumn. (The black plastic cover that sits on top of the intake manifold)
After removing this upper intake, the regulator will be on the back side of the fuel injector inlet housing.
Good luck

you will have to remove upper intake plenum the black plastic part there is a o-ring around the area you are speaking of. now if this engine didn,t have the intake gaskets replaced before installing now would be good time because if you keep vehicle believe me you will have to do sooner or later these engines came with plastic intake gaskets that are notorious for leaking to do this you will njeed to remove both upper and lower intake manifolds I just started a job on 99 tahoe today before lunch and customer is driving tonight replaced upper and lower intake gaskets fel-pro makes updated gaskets for this engine that has thick metal shim and rubber gaskets a great improvement that ends this problem as for your vacuum leak at opening for fuel lines don,t see often but is possible hope this helps

remove the intake manifold ,remove radiator ,remove radiator intake and outake housing, remove fan ,remove all belts: power steering, alternator and if you have a/c, remove harmonic balancer ,remove timing belt covers, remove timing belt remove intake housinng once you have remove all the above, your freaken engine will look naked, you can see the location of the knock sensor is locate in the engine valley

3.8L Engine

NOTE The 3.8L (VIN K) non-supercharged engine uses a two-piece intake manifold consisting of an upper air plenum which mounts the throttle body and a lower intake manifold assembly which houses the fuel injectors. The 3.8L (VIN 1) supercharged engine uses a similar lower intake manifold. The supercharger serves as the upper manifold.
Lower Manifold

NOTE Two bolts which fasten the lower intake manifold to the cylinder head are accessible only after the upper intake manifold is removed. These bolts are located in the right front and left rear corners of the lower intake manifold. Remove the upper intake manifold to service the lower intake.
The 3.8L (VIN 1) supercharged engine uses a manifold similar to the 3.8L (VIN K), but the supercharger serves as the upper manifold.

1. Disconnect the negative battery cable.
2. On 3.8L (VIN 1) engines, remove the supercharger assembly. Please see the procedure in this section.
3. Remove the upper intake manifold using the procedure above.
4. Remove the EGR outlet pipe from the intake manifold.
5. Detach the engine coolant temperature sensor wiring harness from the sensor.
6. Remove the lower intake manifold bolts and carefully lift off the manifold.

To install:


Fig. Lower intake manifold bolt torque sequence-3.8L (VIN K) engine

1. Clean all parts well with degreaser, especially the gasket seal surfaces on the upper and lower manifold pieces and between the lower manifold and the cylinder heads..
2. Install new gaskets to the cylinder heads and new seals to the engine block. Carefully lower the manifold into place. Apply thread-locking compound to the bolt threads. Make sure to install the two hidden bolts in the lower intake manifold. Hand start all bolts, then torque evenly to 11 ft. lbs. (15 Nm). Follow the toque sequence, starting in the center, then working outwards in a circle.
3. Install the remaining components in the reverse order of the removal process.

Upper Intake Manifold (Plenum)

1. Disconnect the negative battery cable.
2. On 3.8L (VIN 1) engines, remove the supercharger assembly. Please see the procedure in this section.
3. Tag for identification, then remove the right side spark plug wires.
4. Disconnect the ignition wires from the fuel rail.
5. Remove the fuel rail. Please see Section 5.
6. Remove the cable bracket from the intake manifold.
7. Remove the throttle body.

NOTE Two bolts which fasten the lower intake manifold to the cylinder head are accessible are accessible only after the upper intake manifold is removed. These bolts are located in the right front and left rear corners of the lower intake manifold.

1. Remove the upper intake manifold bolts and carefully lift the upper intake manifold from the engine.

Fig. Upper intake manifold and bolt torque sequence-3.8L (VIN K) engine
To install:

1. Clean all parts well with degreaser, especially the gasket seal surfaces on the upper and lower manifold pieces.
2. Install new gaskets to the cylinder heads and new seals to the engine block. Carefully lower the manifold into place. Make sure to install the two hidden bolts in the lower intake manifold. Hand start all bolts, then torque evenly to 89 inch lbs. (10 Nm). Follow the torque sequence, starting in the center, then working outwards in a circle.
3. Install the remaining components in the reverse order of the removal process.

If you look at the top of the upper intake manifold plenum with the air intake duct work off you will see 2 shiny fuel tubes that feed into the fuel meter body. The fuel meter body also has an electrical connector right in the middle of it. The pressure regulator is mounted on the side of that body. You'll have to remove the upper intake manifold manifold to replace it. Before you do that, be sure to bleed the pressure off the fuel system.

Its located just under the intake manifold. you will need to remove the exhaust pipe to access it. there is also an upper and lower intake manifold support bracket that will need to be removed as well to extract the starter.

Its in a tough spot.

just hit the upper intake with your hand to the left and that will do i t