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Intake Manifold 

Removal

 

 WARNING: Do not smoke or carry lighted tobacco or open flame of any type when working on or near any fuel-related components. Highly flammable mixtures are always 

present and can be ignited, resulting in possible personal injury.

 

 WARNING: Fuel in the fuel system remains under high pressure even when the engine is not running.

 

1. Disconnect the battery ground cable (14301). 

2. Drain the coolant system; refer to 

Section 303-03

3. Compress and slide the hose clamp and disconnect the water outlet hose. 

 

4. Remove the air cleaner outlet tube, refer to 

Section 303-12

5. Remove the accelerator cable snow shield. 

 

6. Disconnect the accelerator and speed control cables and the return spring. 

 

7. Position the accelerator cable bracket aside. 

Remove the bolts. 

Position the bracket and cables aside. 

 

8. Disconnect the vacuum lines: 

PCV. 

brake booster. 

engine sensor control wiring harness. 

SECTION 303-01B: Engine — 6.8L 

1999 F-Super Duty 250-550 Workshop Manual 

IN-VEHICLE REPAIR 

Procedure revision date: 01/26/2000

14

1999 F-Super Duty 250-550 Workshop Manual

1/16/2011

http://www.fordtechservice.dealerconnection.com/pubs/content/~WSXO/~MUS~LEN/20/...

Summary of Contents for F-Super Duty 250 1999

Page 1: ...ose clamp and disconnect the water outlet hose 4 Remove the air cleaner outlet tube refer to Section 303 12 5 Remove the accelerator cable snow shield 6 Disconnect the accelerator and speed control ca...

Page 2: ...five RH fuel injector electrical connectors and five ignition coil electrical connectors 12 Disconnect the idle air control motor electrical connector and the bypass hose 14 1999 F Super Duty 250 550...

Page 3: ...lines 16 Remove the EGR transducer bracket 17 Position the EGR valve to exhaust manifold tube aside Disconnect the upper fitting Loosen the lower fitting Position the tube aside 18 Disconnect the EGR...

Page 4: ...move the four bolts Remove the throttle body adapter Remove the throttle body adapter gasket 21 Remove the EVR bracket Remove the bolts Remove the bracket 22 Disconnect the five LH fuel injector elect...

Page 5: ...e the ten ignition coils 26 Disconnect the fuel injection supply manifold Disconnect the fuel lines Disconnect the vacuum connector from the fuel pressure regulator 27 Position the radio interference...

Page 6: ...e intake manifold gaskets 31 If required remove the fuel injection supply manifold Remove the seven bolts Remove the fuel injection supply manifold 32 Separate the upper and lower intake manifolds 942...

Page 7: ...lation 1 Position the lower intake manifold gasket 9461 and the upper intake manifold on the intake manifold and loosely install the ten bolts 2 NOTE Tighten the bolts in two stages Tighten the bolts...

Page 8: ...ll the upper intake manifold Position the upper intake manifold gaskets and the intake manifold and loosely install the bolts 6 Tighten the bolts in two stages in the sequence shown Stage 1 Tighten to...

Page 9: ...to the fuel injection supply manifold 10 Install the ignition coils Position the ten ignition coils Install the ten bolts 11 Install the generator refer to Section 414 02 12 Connect the water tempera...

Page 10: ...5 Install the throttle body adapter Position a new throttle body adapter gasket Position the throttle body adapter Install four bolts and tighten in two stages Stage 1 Tighten to 8 10 Nm 71 88 lb in S...

Page 11: ...ust manifold tube Hand tighten the fittings Tighten the upper fitting to 55 65 Nm 41 47 lb ft Tighten the lower fitting to 55 65 Nm 41 47 lb ft 19 Install the EGR transducer bracket Position the brack...

Page 12: ...ter hose 23 Connect the idle air control motor bypass hose and connector 24 Connect the five RH fuel injector electrical connectors and five RH ignition coil connectors 14 1999 F Super Duty 250 550 Wo...

Page 13: ...oster engine control sensor wiring harness 28 Install the accelerator bracket Position the bracket Install the bolts 29 Connect the accelerator and speed control cables and return spring 30 Install th...

Page 14: ...the engine water outlet hose and position the hose clamp 33 Fill the cooling system refer to Section 303 03 34 Connect the battery ground cable 14 1999 F Super Duty 250 550 Workshop Manual 1 16 2011 h...

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