American Expedition Vehicles JK HEMI Builder Kit - Installation Guide for 12+ JK Wrangler User Manual

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3. Locate the plug to the throttle body. This will need to be tested on the new Hemi throttle body. If it does

not fit, you will need to remove the plug from the AEV harness, and the Hemi harness so that you can

wire in the correct plug into the AEV harness. We recommend removing at least 8 inches of wiring with

the plug. Refer to the factory service manual for the correct pin out.

4. Remove the wiring harness that came with the new engine.

5. Remove the intake manifold on a 6.4L (refer to the factory service manual). The engine block will need

to be modified as shown in Figure 15. Verify by “dry-fitting” the AEV intake manifold to check for clear-

ance before final installation. Once clearance has been verified, change the water pump (sourced from

2011 and newer engines) and install AEV intake manifold.

a. This intake must be used in conjunction with an AEV PCM that has been programmed to take full

advantage of the long and short runners.

b. Use the 6.4L throttle body only
c. There are ten (10) seals on the bottom of the manifold, one (1) between the intake manifold actua-

tor and intake, and one (1) between the throttle body and intake. Be sure all seals are properly

installed.

d. Torque manifold bolts to 9 ft/lbs in the exact order shown in Figure 16.

Front

7

8

3

4

1

2

5

6

9

10

Rear

Figure 15 Figure 16

6. Install ground strap head to head (fig 17).

Figure 17

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