SECTION 303-01A: Engine — 3.5L Ti-VCT
2014 Flex Workshop Manual
REMOVAL
Procedure revision date: 05/02/2013

Camshaft


Special Tool(s)
3 Jaw Puller
303-D121 or equivalent
Adjustable Grip Arm, 1735A
014-00001
Disconnect Tool, Transmission Cooler Line
307-569
Handle
205-153 (T80T-4000-W)
Hold Down, Secondary Chain
303-1530
Installer, Differential Bearing Cone
205-142 (T80T-4000-J)
Powertrain Lift
300-OTC1585AE
Remover, Oil Seal
303-409 (T92C-6700CH)
Remover, VCT Spark Plug Tube Seal
303-1247/1
Tool, Camshaft Holding
303-1248

Material
Item Specification
Motorcraft® Metal Surface Prep
ZC-31-A
Motorcraft® Silicone Gasket Remover
ZC-30

 WARNING: Do not smoke, carry lighted tobacco or have an open flame of any type when working on or near any fuel-related component. Highly flammable mixtures are always present and may be ignited. Failure to follow these instructions may result in serious personal injury.

NOTICE: During engine repair procedures, cleanliness is extremely important. Any foreign material, including any material created while cleaning gasket surfaces that enters the oil passages, coolant passages or the oil pan, may cause engine failure.

All vehicles

  1. With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to Section 100-02 .
  1. Release the fuel system pressure. For additional information, refer to Section 310-00 .
  1. Recover the A/C system. For additional information, refer to Section 412-00 .
  1. Remove the cowl panel grille. For additional information, refer to Section 501-02 .
  1. Remove the 4 nuts and the strut tower brace.
  1. Remove the engine Air Cleaner (ACL) and ACL outlet pipe. For additional information, refer to Section 303-12 .
  1. Remove the battery tray. For additional information, refer to Section 414-01 .
  1. Remove the nut and disconnect the 2 battery feed cables from the positive battery terminal.
  1. Remove the retainer and the ground wire cable.
  1. Disconnect the engine wiring harness electrical connector.
  1. If equipped, release the 4 retainers and remove the underbody shield.
  1. Drain the cooling system. For additional information, refer to Section 303-03 .
  1. Remove the front wheels and tires. For additional information, refer to Section 204-04 .
  1. Remove the 3 pin-type retainers and position aside.
  1. Remove the accessory drive belt. For additional information, refer to Section 303-05 .
  1. Remove the nut and disconnect the A/C tube.
  1. Disconnect the A/C pressure switch electrical connector.
  1. Remove the nut and the A/C tube from the condenser.
  1. Remove the degas bottle. For additional information, refer to Section 303-03 .
  1. Disconnect the degas bottle coolant hose from the engine coolant tube.
  1. Disconnect the brake booster vacuum hose from the upper intake manifold.
  1. Disconnect the Evaporative Emission (EVAP) tube and the fuel supply tube quick connect coupling. For additional information, refer to Section 310-00 .
  1. Disconnect the 2 PCM electrical connectors.
  1. Disconnect the engine harness electrical connector.
  1. Remove the engine wiring harness retainer from the bulkhead.
    1. Push the wiring harness retainer tab in.
    1. Slide the wiring harness up and out of the bulkhead.
  1. Remove the bolt and ground wire from the RH shock tower.
  1. Disconnect the upper radiator hose, lower radiator hose and 2 heater hoses from the thermostat housing.
  1. Disconnect the transaxle control cable from the control lever.
  1. Disconnect the transaxle control cable from the shift cable bracket and position aside.
  1. If equipped, detach the engine block heater harness from the radiator support.
  1. NOTE: Use a steering wheel holding device (such as Hunter® 28-75-1 or equivalent).

    Using a suitable holding device, hold the steering wheel in the straight-ahead position.
  1. NOTICE: Do not allow the intermediate shaft to rotate while it is disconnected from the gear or damage to the clockspring may occur. If there is evidence that the intermediate shaft has rotated, the clockspring must be removed and recentered. For additional information, refer to Section 501-20B .

    NOTE: Index-mark the steering column shaft position to the steering gear for reference during installation.

    Remove the bolt and disconnect the steering column shaft from the steering gear.
  1. Remove the exhaust Y-pipe. For additional information, refer to Section 309-00 .

All-Wheel Drive (AWD) vehicles

  1. NOTE: Index-mark the driveshaft for installation.

    Remove and discard the 4 bolts and support the driveshaft with a length of mechanic's wire.

All vehicles

  1. Remove the drain plug and drain the engine oil.
  1. Remove and discard the engine oil filter.
  1. If equipped, disconnect the 2 oil cooler coolant hoses.
  1. If equipped, unlatch the cooler hose retainer latch and pry up on the oil cooler hose retainer to release the retainer and remove it from the subframe.
  1. Remove the 2 secondary latches from the transmission fluid cooler tubes at the transmission fluid cooler thermal bypass valve.
  1. Using the Transmission Cooler Line Disconnect Tool, disconnect the transmission fluid cooler tubes from the transmission fluid cooler thermal bypass valve.
  1. NOTE: LH shown, RH similar.

    Remove the bolt and the wheel speed sensor.
  1. NOTE: LH shown, RH similar.

    Remove and discard the upper stabilizer link nut.
  1. NOTICE: Do not allow the brake caliper to hang from the brake flexible hose or damage to the hose may occur.

    NOTE: LH shown, RH similar.

    Remove the brake caliper guide pin bolts and calipers.
  1. NOTE: RH shown, LH similar.

    Using a wax pencil, mark the relationship of the front and rear subframe to the underbody at the mounting locations on both side.
  1. NOTE: LH shown, RH similar.

    Remove the LH and RH halfshaft nuts.
  1. NOTE: LH shown, RH similar.

    Separate the LH and RH halfshaft from the wheel hubs.
  1. Position a 2 x 6 board, 36 in (914.4 mm) in length and two 2 x 6 boards 24 in (609.6 mm) in length onto the powertrain lift.
  1. Install the Adjustable Grip Arm from the powertrain lift table to the LH engine-to-transmission bolt hole.
  1. Install a ratchet strap from the front of the subframe under the powertrain lift table to the rear of the subframe, to secure the subframe to the powertrain lift table.
  1. NOTE: LH shown, RH similar.

    NOTE: The halfshafts are not being remove from the transmission.

    Remove the strut-to-wheel knuckle nuts and bolts.
  1. Remove the transaxle support insulator through bolt and nut.
  1. Remove the bolt, 3 nuts and the transaxle support insulator bracket.
  1. Remove the 4 engine mount nuts.
  1. Remove the 3 bolts and the engine mount.
  1. NOTE: RH shown, LH similar.

    Remove the subframe bracket-to-body bolts.
  1. NOTE: RH shown, LH similar.

    Remove the rear subframe bolts and the subframe brackets.
  1. NOTE: RH shown, LH similar.

    Remove the front subframe bolts.
  1. Lower the subframe and powertrain assembly from the vehicle.
  1. Remove the 3 bolts and the accessory drive belt tensioner.
  1. Remove the crankshaft pulley bolt and washer.
  1. Using the 3 Jaw Puller, remove the crankshaft pulley.
  1. Using the Oil Seal Remover, remove and discard the crankshaft front seal.
  1. Remove the crankcase vent tube. For additional information, refer to the quick connect coupling in Section 310-00 .
  1. Remove the oil level indicator.
  1. Disconnect the 3 LH coil-on-plug electrical connectors and remove the 3 bolts and the 3 LH-coil-on-plugs.
  1. Remove the ground wire bolt from the engine front cover.
  1. Remove the engine wiring harness from the LH valve cover.
  1. NOTICE: While removing the valve cover do not apply excessive force to the Variable Camshaft Timing (VCT) oil control solenoid or damage may occur.

    NOTICE: If the Variable Camshaft Timing (VCT) oil control solenoid sticks to the VCT seal, carefully wiggle the valve cover until the bond breaks free or damage to the VCT seal and VCT oil control solenoid may occur.

    Loosen the 4 bolts and 7 stud bolts.
  1. Inspect the VCT solenoid seals. Remove any damaged seals.
  1. Inspect the spark plug tube seals. Remove any damaged seals.
  1. Disconnect the Evaporative Emission (EVAP) canister vent solenoid and throttle body electrical connectors.
  1. Disconnect the EVAP vapor tube from the EVAP canister vent solenoid. For additional information, refer to Section 310-00 .
  1. Disconnect the crankcase ventilation hose from the upper intake manifold.
  1. Detach the 2 coolant tube retainers from the upper intake manifold.
  1. Remove the upper intake manifold support bracket bolt.
  1. Remove the 7 bolts and the upper intake manifold.
  1. Disconnect the 3 RH coil-on-plug electrical connectors and remove the 3 bolts and the 3 RH -coil-on-plugs.
  1. Remove the PCV crankcase vent tube.
  1. Remove the engine wiring harness from the RH valve cover.
  1. NOTICE: While removing the valve cover do not apply excessive force to the Variable Camshaft Timing (VCT) oil control solenoid or damage may occur.

    NOTICE: If the Variable Camshaft Timing (VCT) oil control solenoid sticks to the VCT seal, carefully wiggle the valve cover until the bond breaks free or damage to the VCT seal and VCT oil control solenoid may occur.

    Loosen the 2 bolts and 9 stud bolts.
  1. Inspect the 2 VCT solenoid seals. Remove any damaged seals.
  1. Inspect the spark plug tube seals. Remove any damaged seals.
  1. Clean the valve covers, cylinder heads and engine front cover sealing surfaces with metal surface prep.
  1. Remove the generator nut and stud.
  1. Remove the fuel supply tube-to-engine front cover bolt.
  1. Remove the 26 front cover bolts.
  1. Using a suitable pry tool, locate the 5 pry pads shown and pry the engine front cover loose and remove.
  1. Rotate the crankshaft clockwise and align the timing marks on the intake Variable Camshaft Timing (VCT) assemblies as shown.
  1. Remove the 3 bolts and the LH valve train oil tube.
  1. NOTE: The Camshaft Holding Tool will hold the camshafts in the Top Dead Center (TDC) position.

    Install the Camshaft Holding Tool onto the flats of the LH camshafts.
  1. Remove the 3 bolts and the RH valve train oil tube.
  1. NOTE: The Camshaft Holding Tool will hold the camshafts in the TDC position.

    Install the Camshaft Holding Tool onto the flats of the RH camshafts.

NOTE: The following 3 steps are for primary timing chains that the colored links are not visible.

  1. Mark the timing chain link that aligns with the timing mark on the LH intake VCT assembly as shown.
  1. Mark the timing chain link that aligns with the timing mark on the RH intake VCT assembly as shown.
  1. NOTE: The crankshaft sprocket timing mark should be between the 2 colored links.

    Mark the 2 timing chain links that align with the timing mark on the crankshaft sprocket as shown.
  1. Remove the 2 bolts and the primary timing chain tensioner.
  1. Remove the primary timing chain tensioner arm.
  1. Remove the 2 bolts and the lower LH primary timing chain guide.
  1. NOTE: Removal of the VCT oil control solenoid will aid in the removal of the primary timing chain.

    NOTE: A slight twisting motion will aid in the removal of the VCT oil control solenoid.

    NOTE: Keep the VCT oil control solenoid clean of dirt and debris.

    Remove the bolt and the LH intake VCT oil control solenoid.
  1. NOTE: Removal of the VCT oil control solenoid will aid in the removal of the primary timing chain.

    NOTE: A slight twisting motion will aid in the removal of the VCT oil control solenoid.

    NOTE: Keep the VCT oil control solenoid clean of dirt and debris.

    Remove the bolt and the RH intake VCT oil control solenoid.
  1. Remove the primary timing chain.

LH camshafts

  1. NOTE: The 2 VCT oil control solenoids are removed for clarity.

    NOTE: The Secondary Chain Hold Down is inserted through a hole in the top of the mega cap.

    Compress the LH secondary timing chain tensioner and install the Secondary Chain Hold Down in the hole on the rear of the secondary timing chain tensioner guide and let it hold against the mega cap to retain the tensioner in the collapsed position.
  1. Remove and discard the 2 LH VCT assembly bolts.
  1. Remove the 2 LH VCT assemblies and secondary timing chain.
  1. NOTE: When the Camshaft Holding Tool is removed, valve spring pressure may rotate the LH camshafts approximately 3 degrees to a neutral position.

    Remove the Camshaft Holding Tool from the LH camshafts.
  1. NOTE: Cylinder head camshaft bearing caps are numbered to verify that they are assembled in their original positions.

    NOTE: Mark the exhaust and intake camshafts for installation into their original locations.

    Remove the 12 bolts, 6 camshaft caps, mega cap and the LH camshafts.

RH camshafts

  1. NOTE: The 2 VCT oil control solenoids are removed for clarity.

    NOTE: The Secondary Chain Hold Down is inserted through a hole in the top of the mega cap.

    Compress the RH secondary timing chain tensioner and install the Secondary Chain Hold Down in the hole on the rear of the secondary timing chain tensioner guide and let it hold against the mega cap to retain the tensioner in the collapsed position.
  1. Remove and discard the 2 RH VCT assembly bolts.
  1. Remove the 2 RH VCT assemblies and secondary timing chain.
  1. NOTE: When the Camshaft Holding Tool is removed, valve spring pressure may rotate the RH camshafts approximately 3 degrees to a neutral position.

    Remove the Camshaft Holding Tool from the RH camshafts.
  1. NOTE: Cylinder head camshaft bearing caps are numbered to verify that they are assembled in their original positions.

    NOTE: Mark the exhaust and intake camshafts for installation into their original locations.

    Remove the 12 bolts, 6 camshaft caps, mega cap and the RH camshafts.