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How to remove the upper intake manifold from the EGR tube.
I'm trying to replace injectors on a 1998 Ford Explorer 4.0L SOHC and I can't seem to seperate the upper intake from the EGR tube. Is there a trick to it?
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JustAnswerhttps://www.justanswer.com > Ford Repair
Mar 15, 2020 - Ok give me a minute to look it up. It is under the lower intake manifold. You have to remove that to replace the knock sensor. The block, you ...
? 12:22
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 ...
? 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?
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 ...
Generally the Air charge temp sensor is in the intake tube between the air box & the intake. However, there is a possibility that it is part of the Mass air flow sensor.
Fig. 4: Exploded view of the EGR system and related components for the 4.0L engine (click over pic for zoom) REMOVAL & INSTALLATION
PFE/DPFE Sensor This component is found on all engines, and is also referred to as the backpressure transducer.
Disconnect the negative battery cable.
Detach and label the wiring harness connector from the PFE/DPFE sensor.
Disconnect all of the hoses from the sensor.
Remove the mounting nuts, then separate the sensor from the mounting bracket.
If necessary, remove the EVR solenoid and the PFE/DPFE mounting bracket from the upper intake manifold.
To install:
If removed, install the EVR solenoid and mounting bracket onto the upper intake manifold.
If applicable, install the EGR tube heat shield.
Position the PFE/DPFE sensor on the mounting bracket, then install and tighten the mounting nuts until snug.
Attach all necessary hoses and wiring to the sensor.
Connect the negative battery cable.
EGR Vacuum Regulator (EVR) Solenoid The EVR solenoid is mounted either on the same bracket as the
PFE/DPFE sensor, attached to the upper intake manifold, or near the EGR
valve on its own bracket.
Disconnect the negative battery cable.
Label and detach the wiring harness connector from the EVR solenoid.
Detach the main emission vacuum control connector from the solenoid.
Remove the retaining nuts, then separate the solenoid from the mounting bracket.
To install:
Position the solenoid on its mounting bracket and install the retaining nuts.
Attach the main emission vacuum control connector and the wiring harness connector to the EVR solenoid.
Connect the negative battery cable.
EGR Valve See Figures 6 and 7
Disconnect the negative battery cable.
If necessary, remove the air inlet tube from the throttle body and air cleaner housing.
Label and detach all vacuum hoses from the EGR valve.
Label and detach any electrical wiring harness connectors from the EGR valve.
Disconnect the EGR valve-to-exhaust manifold tube from the EGR valve.
Remove the EGR valve mounting fasteners, then separate the valve from the upper intake manifold.
Remove and discard the old EGR valve gasket, and clean the gasket mating surfaces on the valve and the intake manifold.
Fig. 6: Cutaway view of a base entry type EGR valve
Fig. 7: Cutaway view of a side entry type EGR valve To install:
Install the EGR valve, along with a new gasket, on the upper
intake manifold, then install and tighten the mounting bolts to 4-22 ft.
lbs. (20-30 Nm) on 3.8L engines, or to 106-49 inch lbs. (1-18 Nm) on
5.0L engines.
Connect the EGR valve-to-exhaust manifold tube to the valve, then tighten the tube nut to 30 ft. lbs. (41 Nm).
Connect all wiring or hoses to the EGR valve.
Install the air inlet tube.
Connect the negative battery cable.
Hope this helps, good luck (remember to rate this comments).
If the manifold was replaced, install or connect the following:
Vacuum source manifold.
Positive Crankcase Ventilation (PCV) valve.
Manifold Absolute Pressure (MAP) sensor.
Throttle body assembly.
Upper-to-lower intake manifold carrier gasket to the upper intake manifold.
Carefully place the upper intake manifold onto the lower intake manifold. Ensure that the alignment pins in the upper intake manifold align with the holes in the lower intake manifold.
NOTE: Apply thread lock compound, to the bolt threads before assembly.
Install or connect the following:
Upper intake manifold. Tighten the upper intake manifold bolts in sequence to 89 in lbs (10 Nm)
Accelerator and the cruise control cables with the bracket to the throttle body.
EVAP purge solenoid vacuum line to the throttle body.
Connect the electrical connectors to the following:
Mass Air Flow (MAF) sensor
Manifold Absolute Pressure (MAP) sensor
Idle Air Control (IAC) valve
Throttle Position (T/P) sensor
EVAP purge solenoid
Install or connect the following:
Throttle body upper support bracket bolt. Tighten the bolt to 89 in lbs (10 Nm)
EGR valve wiring harness heat shield, nut and the bolt. Tighten the nut and the bolt to 89 in lbs (10 Nm)
Fig. 11: EGR valve and component mounting-3.0L engine
Fig. 12: EGR valve and component mounting-3.8L engine
Removal:
Disconnect the negative battery cable.
If necessary, remove the air inlet tube from the throttle body and air cleaner housing.
Label and detach all vacuum hoses from the EGR valve.
Label and detach any electrical wiring harness connectors from the EGR valve.
Disconnect the EGR valve-to-exhaust manifold tube from the EGR valve.
Remove the EGR valve mounting fasteners, then separate the valve from the upper intake manifold.
Remove and discard the old EGR valve gasket, and clean the gasket mating surfaces on the valve and the intake manifold.
To install:
Install the EGR valve, along with a new gasket, on the upper
intake manifold, then install and tighten the mounting bolts to 15-22
ft. lbs. (20-30 Nm) on 3.8L engines, or to 106-159 inch lbs. (12-18 Nm)
on 5.0L engines.
Connect the EGR valve-to-exhaust manifold tube to the valve, then tighten the tube nut to 30 ft. lbs. (41 Nm).
Connect all wiring or hoses to the EGR valve.
Install the air inlet tube.
Connect the negative battery cable.
Hope this helps (remember comment and rated this).
Before servicing the vehicle, refer to the Precautions section.
Relieve the fuel system pressure.
Drain the cooling system.
Remove or disconnect the following:
Negative battery cable
Supercharger
Thermostat housing
Exhaust Gas Recirculation (EGR) tube at the intake manifold
Engine Control Temperature (ECT) sensor
Intake manifold
To install:
Install or connect the following:
Intake manifold with new gaskets. Torque the bolts, working from
the center out, to 11 ft. lbs. (15 Nm).
ECT sensor connector
EGR tube to the intake manifold
Thermostat housing
Supercharger
Negative battery cable
Refill and bleed the cooling system.
Run the engine and check for leaks and proper engine operation.
VIN K Engine
Before servicing the vehicle, refer to the Precautions section.
Disconnect the negative battery cable.
Drain the cooling system.
Relieve the fuel system pressure.
Remove or disconnect the following:
Fuel injector sight shield
Air inlet duct
Spark plug wires from the right side
Manifold Absolute Pressure (MAP) sensor
Vacuum lines from the intake manifold
Fuel lines
Fuel injector electrical connectors
Fuel regulator vacuum line
Fuel rail from the intake manifold
Exhaust Gas Recirculation (EGR) heat shield
Throttle cable bracket from the cylinder head mounting bracket and
the throttle body cables
Throttle body support bracket
Upper intake plenum and gasket
Thermostat housing
Electrical connector from the Engine Coolant Temperature (ECT)
sensor
Drive belt tensioner assembly
EGR valve outlet pipe
Lower intake manifold
Fig. Exploded view of the intake manifold and related
components-3.8L (VIN K) engine
Install or connect the following:
Intake manifold using new manifold gaskets. Torque the bolts in
sequence to 11 ft. lbs. (15 Nm); then, re-torque to 11 ft. lbs. (15 Nm).
EGR valve outlet pipe
Drive belt tensioner assembly. Torque the tensioner bolts to 37
ft. lbs. (50 Nm).
Electrical connector to the ECT sensor
Thermostat housing
Upper intake plenum. Torque the intake plenum bolts to 88 inch.
lbs. (10 Nm).
Throttle body support bracket
Throttle cable bracket to the cylinder head mounting bracket and
the cables to the throttle body lever
EGR heat shield
Fuel rail. Torque the fuel rail bolts to 88 inch. lbs. (10 Nm).
Fuel lines
Fuel regulator vacuum line
Fuel injector electrical connectors
Vacuum lines to the intake manifold
MAP sensor
Spark plug wires
Fuel injector sight shield and air inlet duct
Negative battery cable
Refill and bleed the cooling system.
Run the engine and check for leaks and proper engine operation.
Yes. You should be able to replace it without removing the intake manifold. The bolts are very hard to reach, but it can be done with the proper set of sockets and universal joint extensions. I know it looks impossible. If in doubt, take it to a reputable repair shop. Don't let anybody charge you for intake manifold removal.
FORD:
1997-2000 EXPLORER, MOUNTAINEER ISSUE:
A "knocking" noise at start up for up to 2 minutes from the left hand front chain cassette area may occur on some vehicles. After engine shutdown, the tensioner oil supply gallery empties. The noise may be due to air entering the left hand tensioner when the engine is restarted. ACTION:
Replace the left hand camshaft tensioner with a revised Tensioner Kit. Refer to the Instruction Sheet within the Tensioner Kit for service procedure details. WARNING: THE XU2Z-6K254-AA TENSIONER KIT IS FOR INSTALLATION ON THE LEFT SIDE OF THE ENGINE ONLY. INSTALLATION OF THIS KIT ON THE RIGHT SIDE OF THE ENGINE MAY RESULT IN ENGINE FAILURE. IF A TENSIONER IS NEEDED FOR THE RIGHT SIDE OF THE ENGINE, USE KIT XU3Z-6K254-BA.
PART NUMBER
PART NAME
XU2Z-6K254-AA
Tensioner Kit - Left Side
XU3Z-6K254-BA
Tensioner Kit - Right Side
NO you dont have to take the intake off it should be right on the fuel rail with either 1 or 3 bolts if i remember right it will be the only thing on the rail with a vacuum hose on it.
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