steering
Steering Coupler
for 2020 Ford F-150 3.5L V6 EcoBoost · RWD
Difficulty
Moderate
Time
1.2 h
Tools
10
Steps
12
This procedure covers removal and replacement of the intermediate steering shaft coupler, which connects the steering column to the steering rack input shaft.
Warnings
⚠️Never work under a vehicle supported only by a jack. Always use jack stands rated for the vehicle weight.
⚠The steering wheel must be locked in the centered position before disconnecting the steering coupler to prevent damage to the clockspring and airbag system.
⚠Do not rotate the steering wheel or turn the front wheels after disconnecting the coupler, as this can damage the clockspring.
ℹ️This vehicle uses Electric Power Steering (EPS) with no hydraulic fluid, so no fluid drainage is required.
Tools required
Floor jack and jack standsEssential
Wheel chocksEssential
Torque wrench (10-200 Nm range)Essential
Socket set (metric)Essential
Breaker bar
Pry bar (small)
White paint marker or marker penEssential
Penetrating oil
Steering wheel lock or locking pinEssential
Flashlight or work lightEssential
Parts
- Intermediate steering shaft coupler assembly × 1 — Use OEM specification
- Steering coupler bolt(s) × 2 — Use OEM specification - typically one-time-use fasteners
Preparation
- Park vehicle on level ground and set parking brake firmly
- Place wheel chocks behind rear wheels
- Turn ignition to ON position without starting engine, center steering wheel perfectly straight, then turn ignition OFF
- Lock steering wheel in centered position using steering wheel lock or by removing ignition key and turning wheel until lock engages
- Disconnect negative battery cable and wait 2 minutes for airbag system capacitors to discharge
- Raise front of vehicle with floor jack and support securely on jack stands at frame rails
- Remove front skid plate or splash shields if equipped to access steering components
Procedure
- 1Access steering coupler from underneathPosition yourself under the vehicle with adequate lighting. Locate the intermediate steering shaft coupler where the steering column shaft meets the steering rack input shaft. This is typically accessed from the driver's side of the vehicle, above the front differential on RWD models. Clean area of dirt and debris.
- 2Mark coupler alignmentBefore loosening anything, use a white paint marker to make alignment marks across the coupler and both shaft ends (column shaft and rack input shaft). Make clear, visible marks that span the joints so you can reference original positioning during reassembly. Take a photo for reference.
- 3Apply penetrating oil to fastenersSpray penetrating oil on the coupler pinch bolt(s) and allow to soak for 5-10 minutes. The coupler typically uses one or two pinch bolts that clamp onto splined or D-shaped shafts. Check both upper and lower connections.
- 4Remove upper coupler pinch boltLocate the upper pinch bolt connecting the coupler to the steering column shaft. Support the coupler with one hand while removing the bolt with a socket wrench. Note the bolt orientation and any washers. The coupler may be spring-loaded or under slight tension.
- 5Remove lower coupler pinch boltLocate the lower pinch bolt connecting the coupler to the steering rack input shaft. Remove this bolt completely. On some models, this may be a through-bolt design that passes through both sides of the coupler clamp.
- 6Separate and remove couplerWith both pinch bolts removed, carefully collapse or separate the coupler if it has a telescoping design. Use a small pry bar if needed to spread the clamp jaws slightly. Slide the coupler off the steering column shaft first, then off the rack input shaft. The coupler may have splines or a D-shaped bore that needs to be aligned to slide off. Work carefully to avoid damaging the shaft splines or seals.
- 7Inspect shafts and clean splinesInspect both the steering column shaft and rack input shaft for damage, wear, or corrosion on the splines or mating surfaces. Check for any looseness in the rack input shaft bearing. Clean the splines with a wire brush and wipe with a clean rag. Do not allow dirt to enter the steering rack housing.
- 8Install new coupler onto rack input shaftPosition the new steering coupler onto the steering rack input shaft first (lower connection). Align the splines or D-shaped bore carefully. The coupler should slide on smoothly without forcing. Position according to your alignment marks and ensure the clamp gap is positioned correctly for bolt installation.
- 9Connect coupler to steering column shaftCarefully slide or telescope the upper portion of the coupler onto the steering column shaft, aligning the splines or D-shape. Reference your alignment marks to ensure proper clocking. The coupler should be fully seated on both shafts with proper engagement depth.
- 10Install and torque lower pinch boltInstall the new lower pinch bolt (or reuse if specified by manufacturer) into the lower coupler clamp. Ensure the bolt passes through the clamp properly and engages any detent or flat on the rack input shaft. Torque to manufacturer specification. Note: Use the specific torque value provided in your service manual for steering coupler pinch bolts, as this is critical for safety.
- 11Install and torque upper pinch boltInstall the upper pinch bolt into the upper coupler clamp, ensuring it engages properly with the steering column shaft detent or flat. Verify alignment marks are still correct. Torque to manufacturer specification using the same value as the lower bolt.
- 12Verify coupler installationDouble-check that both pinch bolts are fully tightened and properly torqued. Verify the coupler has no play or looseness by attempting to move it by hand (it should be completely solid). Confirm alignment marks are still matched and the coupler is not binding.
Reassembly
- Reinstall any skid plates or splash shields removed for access
- Reconnect negative battery cable
- Remove steering wheel lock or unlock steering wheel
- Lower vehicle from jack stands to ground
Verification
- Start engine and verify no warning lights related to steering or airbag system appear
- With engine running, turn steering wheel slowly from lock to lock while stationary, listening for any unusual noises, binding, or clicking from the coupler area
- Test drive vehicle at low speed in a safe area, checking for proper steering response, no play in the steering wheel, and no vibration or noise during turns
- Verify steering wheel returns to center properly after turning
- Recheck pinch bolt torque after test drive to ensure no loosening has occurred