1994 Mustang

Section 03-04A: Fuel Charging and Controls—3.8L

1994 Mustang Workshop Manual

DESCRIPTION AND OPERATION

The intake manifold (9424) :

Is a two-piece (upper and lower intake manifold ) aluminum casting.
Runner lengths are tuned to optimize engine torque and power output.
Provides mounting flanges for the throttle body (9E926) , fuel injection supply manifold (9F792) and accelerator cable bracket (9723) and the EGR valve (EGR valve) (9D475) .
Vacuum taps are provided to support various engine accessories.
Pockets for the fuel injectors (9F593) are machined into the cylinder heads (6049) to prevent both air and fuel leakage.

Intake Manifolds

Item	Part Number	Description
1	9C968	Fuel Pressure Regulator
2A	9H323	Fuel Pressure Relief Valve Cap
3B	9H321	Fuel Pressure Relief Valve
4	9F792	Fuel Injection Supply Manifold
5	N804836-S53	Retaining Clip
6	9F593	Fuel Injector (6 Req'd)
7C	N805117-S8M	Bolt (4 Req'd)
8D	N606691-S2	Bolt
9E	N804758-S2	Nut
10F	N804835-S2	Stud Bolt (2 Req'd)
11	9424	Upper Intake Manifold
12F	N804839-S2	Bolt (4 Req'd)
13	9H486	Intake Manifold Upper Gasket
14	9424	Lower Intake Manifold
15	9E936	Throttle Body Gasket
16D	N804758-S2	Nut (4 Req'd)
17	9E926	Throttle Body
18	9D475	EGR Valve
A		Tighten to 0.6 Nm (5.5 Lb-In)
B		Tighten to 7.75 Nm (66 Lb-In)
C		Tighten to 8-11 Nm (71-97 Lb-In)
D		Tighten to 20-30 Nm (15-22 Lb-Ft)
E		Tighten to 11-15 Nm (8-11 Lb-Ft)
F		Tighten in three steps: · 10 Nm (8 Lb-Ft) ·20 Nm (15 Lb-Ft) ·32 Nm (24 Lb-Ft)