2021 ROUSH Performance F-150 Service Manual
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2021 ROUSH Performance F-150 Service Manual
16. Route the active exhaust harness along the outer oor
to the passenger rear corner of the vehicle. Route
the harness under the front scuff plate, behind the
B-pillar trim (under the seat belt bracket), under the
rear scuff plate, and behind the C-pillar trim.
17. Route the plug out of the rear cab vent.
18. The wire will run down in between the cab and the
bed of the vehicle. Pull the wire past the rubber seal
that bridges the gap between the cab and bed. Add
a zip tie to secure.
19. Plug the connector into the valve on the muer.
20. From inside the cab, pull gently on the wire until all
slack is taken up. Use a zip tie to secure the wire to
the wall of the cab. Zip tie the relay to the rear wall
of the cab.
21. Remove the ground and attach the active exhaust
ground to OEM location.
22. Reinstall all the trim panels that were removed in the
previous steps.
Quick Diagnostics for Valve Concerns
1. Unplug the valves one by one while having another
technician activate the switch on the console
approximately 5-10 times.
2.
While the switch is being activated the other technician
should be verifying the proper movement of the valve
that is still plugged in.
This test will determine which valve is at fault and needs
to be replaced based on the one that does not respond
to the movement of the switch. If both are working
properly, please contact ROUSH Technical Support at
800-59-ROUSH.
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