Section 1 (Engine - 3.5L GTDI): Disassembly: Engine
WARNING: This page is about a different variant/trim than selected.
Special Tool(s)
| 3 Jaw Puller 303-D121 or equivalent | |
| Handle 205-153 (T80T-4000-W) | |
| Remover, Fuel Injector 310-206 | |
| Remover, Oil Seal 303-409 (T92C-6700CH) | |
| Remover, VCT Spark Plug Tube Seal 303-1247/1 | |
| Slide Hammer 307-005 (T59L-100-B) | |
| Spring Lock Coupling Disconnect Tool 310-S039 (T90T-9550-S) or equivalent | |
| Strap Wrench 303-D055 (D85L-6000-A) or equivalent | |
| Tool, Camshaft Holding 303-1248 |
Material
| Item | Specification |
| Motorcraft ® Metal Surface Prep ZC-31-B | - |
| Motorcraft ® Silicone Gasket Remover ZC-30-A | - |
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.
WARNING:
Do not carry personal electronic devices such as cell phones, pagers or audio equipment 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.
WARNING:
When handling fuel, always observe fuel handling precautions and be prepared in the event of fuel spillage. Spilled fuel may be ignited by hot vehicle components or other ignition sources. Failure to follow these instructions may result in serious personal injury.
WARNING:
Clean all fuel residue from the engine compartment. If not removed, fuel residue may ignite when the engine is returned to operation. Failure to follow this instruction may result in serious personal injury.
NOTE:
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.
NOTE:
Whenever turbocharger air intake system components are removed, always cover open ports to protect from debris. It is important that no foreign material enter the system. The turbocharger compressor vanes are susceptible to damage from even small particles. All components should be inspected and cleaned, if necessary, prior to installation or reassembly.
NOTE:
A clean working environment is essential to prevent dirt or foreign material contamination into the fuel rails.
NOTE:
For additional information, refer to the exploded view under the Assembly procedure in this article.
- 3.NOTE: Install the engine stand bolts into the cylinder block only. Do not install the bolts into the oil pan.
Mount the engine on a suitable engine stand.
- 4.
If equipped, remove the heat shield and disconnect the block heater electrical connector.- Detach all of the engine block heater harness retainers and remove the harness.
- 9.NOTE: Index-mark the hoses for installation.
Remove the turbocharger wastegate regulating valve hoses from the RH CAC tube and turbocharger wastegate regulating valve.
- 14.NOTE: The compression limiter bushing may fall out of the mounting bracket grommet on the turbocharger intake tube during service. Make sure the bushing is in place when reinstalling the tube or damage to the tube may occur.
Remove the nut from the RH valve cover stud bolt for the RH turbocharger intake tube.
- 15.NOTE: The compression limiter bushing may fall out of the mounting bracket grommet on the Charge Air Cooler (CAC) tube during service. Make sure the bushing is in place when reinstalling the tube or damage to the tube may occur.
Remove the RH CAC tube nut from the intake manifold and remove the RH CAC tube and turbocharger intake tube as an assembly.
- 17.
Disconnect the 2 quick connect couplings and remove the PCV tube. For additional information, refer to Fuel System General Information .
- 18.
Remove the noise insulator shield for the fuel injection pump and disconnect the electrical connector.
- 21.
Disconnect the A/C compressor and the pressure relief valve electrical connectors.- Detach the 2 wiring harness retainers from the from the A/C stud bolts.
- 22.
Remove the A/C compressor nut and the Catalyst Monitor Sensor (CMS) electrical connector bracket.- Detach the CMS electrical connector from the bracket.
- 28.
Disconnect the Engine Oil Pressure (EOP) switch electrical connector.- Detach the EOP wiring harness retainer from the engine block.
- 36.
Disconnect the Manifold Absolute Pressure (MAP) /Intake Air Temperature 2 (IAT2) sensor electrical connector.
- 41.NOTE: If the engine is repaired or replaced because of upper engine failure, typically including valve or piston damage, check the intake manifold for metal debris. If metal debris is found, install a new intake manifold. Failure to follow these instructions can result in engine damage.NOTE: Note the routing of the 2 fuel rail wiring harnesses for installation.
Remove the 12 bolts and the intake manifold.
- Remove and discard the intake manifold, coolant crossover and thermostat housing gaskets.
- Clean and inspect all sealing surfaces.
- 42.
Disconnect the RH VCT solenoid and the 3 RH ignition coil-on-plug electrical connectors.- Detach all the wiring harness retainers.
- 45.
Disconnect the Cylinder Head Temperature (CHT) sensor electrical connector from the rear of the RH cylinder head.
- 49.
Remove the 2 bolts and the LH turbocharger oil return tube from the turbocharger.- Remove and discard the gasket.
- 52.
Using the Spring Lock Coupling Disconnect Tool, remove the LH oil supply tube from the quick connect fitting.- Inspect and if necessary, replace the quick connect fitting.
- 53.
Remove the 2 coolant tube banjo bolts and the LH turbocharger coolant tubes and sealing washers.- Discard the sealing washers.
- 54.
Remove the LH turbocharger oil supply tube banjo bolt.- Discard the sealing washer.
- Discard the oil supply tube filter.
- 57.
Remove the 3 LH turbocharger-to-exhaust manifold bolts and turbocharger.- Discard the gasket and bolts.
- 58.
Remove the 8 LH exhaust manifold nuts (6 shown) and the exhaust manifold.- Discard the exhaust manifold gasket and nuts.
- 59.
Clean and inspect the LH exhaust manifold. For additional information, refer to Engine System General Information .
- 61.NOTE: Do not use metal scrapers, wire brushes, power abrasive discs or other abrasive means to clean the sealing surfaces. These may cause scratches and gouges resulting in leak paths. Use a plastic scraper to clean the sealing surfaces.
Clean the exhaust manifold mating surface of the cylinder head with metal surface prep. Follow the directions on the packaging.
- 70.
Remove the 2 bolts and the RH turbocharger oil return tube from the RH turbocharger.- Remove and discard the gasket.
- 73.
Using the Spring Lock Coupling Disconnect Tool, remove the RH oil supply tube from the quick connect fitting.- Inspect and if necessary, replace quick connect fitting.
- 74.
Remove the 2 coolant tube banjo bolts and the RH turbocharger coolant tubes.- Discard the sealing washers.
- 76.
Remove the 3 exhaust manifold-to-turbocharger bolts and the turbocharger assembly.- Discard the gasket and bolts.
- 77.
Remove the RH turbocharger oil supply tube banjo bolt.- Discard the sealing washer.
- Discard the oil supply tube filter.
- 79.
Clean and inspect the RH exhaust manifold. For additional information, refer to Engine System General Information .
- 81.NOTE: Do not use metal scrapers, wire brushes, power abrasive discs or other abrasive means to clean the sealing surfaces. These may cause scratches and gouges resulting in leak paths. Use a plastic scraper to clean the sealing surfaces.
Clean the exhaust manifold mating surface of the cylinder head with metal surface prep. Follow the directions on the packaging.
- 87.
Remove the RH cylinder block drain plug or, if equipped, the block heater.- Allow coolant to drain from the cylinder block.
- 88.
Remove the nut for the high pressure fuel tube from the LH valve cover stud bolt and disconnect the Fuel Rail Pressure (FRP) sensor electrical connector.
- 89.NOTE: To release the fuel pressure in the high pressure fuel tube, wrap the flare nut with a shop towel to absorb any residual fuel pressure during the loosening of the flare nut.
Remove the high pressure fuel tube flare nut from the fuel injection pump. Remove the 2 high pressure fuel tube flare nuts from the fuel rails and remove the high pressure fuel tube assembly.
- 92.NOTE: Valve cover is removed for clarity.
Remove the fuel injection pump roller tappet.
- Inspect the fuel injection pump roller tappet. For additional information, refer to Fuel Charging and Controls 3.5L GTDI .
- 93.NOTE: It is very important to note the routing of the wiring harness on the fuel rails and index-mark the locations of the tie straps prior to removal or damage may occur to the wire harnesses during installation. The illustration details the correct wire harness routing and tie strap positioning for installation.NOTE: Use compressed air to remove any dirt or foreign material from the cylinder head, block and the general surrounding area of the fuel rails and injectors.
Carefully cut and remove the fuel rail wire harness tie straps.
- 94.NOTE: Pull out the fuel rails in the direction of the fuel injector axis or damage may occur to the fuel injectors.NOTE: When removing the fuel rails, the fuel injectors may remain in the fuel rails but normally remain lodged in the cylinder heads and require the use of a Fuel Injector Remover to extract.
Remove the 6 bolts and the LH fuel rail.
- 96.NOTE: RH shown, LH similar.
Disconnect the 6 fuel injector electrical connectors and remove the 2 fuel injector wire harnesses.
- 100.NOTE: When removing the ignition coil-on-plugs, a slight twisting motion will break the seal and ease removal.
Remove the 3 bolts and the 3 RH ignition coils-on-plugs.
- 101.NOTE: When removing the ignition coil-on-plugs, a slight twisting motion will break the seal and ease removal.
Remove the 3 bolts and the 3 LH ignition coils-on-plugs.
- 102.NOTE: When removing the valve cover do not apply excessive force to the VCT oil control solenoid. If the VCT solenoid seal sticks to the VCT oil control solenoid carefully wiggle the valve cover until the seal breaks free. After the valve cover is removed, inspect and replace the VCT solenoid if damaged.
Loosen the bolt and the 10 stud bolts. Remove the LH valve cover.
- Discard the gasket.
- 103.NOTE: When removing the valve cover do not apply excessive force to the VCT oil control solenoid. If the VCT solenoid seal sticks to the VCT oil control solenoid carefully wiggle the valve cover until the seal breaks free. After the valve cover is removed, inspect and replace the VCT solenoid if damaged.
Loosen the 5 bolts and the 6 stud bolts. Remove the RH valve cover.
- Discard the gasket.
- 104.NOTE: VCT solenoid seal removal shown, spark plug tube seal removal similar.
Inspect the VCT solenoid seals and the spark plug tube seals. Install new seals if damaged.
- Using the VCT Spark Plug Tube Seal Remover and Handle, remove the seal(s).
- 108.
Remove the stud bolt and Heated Oxygen Sensor (HO2S) connector bracket from the engine front cover.
- 111.
Install 6 of the engine front cover bolts (finger-tight) into the 6 threaded holes in the engine front cover.- Tighten the bolts one turn at a time in a crisscross pattern until the engine front cover-to-cylinder block seal is released.
- Remove the engine front cover.
- Tighten the bolts one turn at a time in a crisscross pattern until the engine front cover-to-cylinder block seal is released.
- 112.
Rotate the crankshaft clockwise and align the timing marks on the Variable Camshaft Timing (VCT) assemblies as shown.
- 113.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.
- 114.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 when the colored links are not visible.
- 117.
Mark the timing chain link that aligns with the timing mark on the RH intake VCT assembly as shown.
- 118.
Mark the timing chain link that aligns with the timing mark on the LH intake VCT assembly as shown.
- 119.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.
- 126.
Compress the LH secondary timing chain tensioner and install a suitable lockpin to retain the tensioner in the collapsed position.
- 127.NOTE: The VCT bolt and the exhaust camshaft bolt must be discarded and new ones installed. However, the exhaust camshaft washer is reusable.
Remove and discard the LH VCT assembly bolt and the LH exhaust camshaft sprocket bolt.
- Remove the LH VCT assembly, secondary timing chain and the LH exhaust camshaft sprocket as an assembly.
- 129.NOTE: When the Camshaft Holding Tool is removed, valve spring pressure will rotate the LH camshafts approximately 3 degrees to a neutral position.
Remove the Camshaft Holding Tool from the LH camshafts.
- 130.NOTE: The camshafts must remain in the neutral position during removal or engine damage may occur.
Verify the LH camshafts are in the neutral position.
- 132.NOTE: Cylinder head camshaft bearing caps are numbered to verify that they are assembled in their original positions.
Remove the bolts and the LH camshaft bearing caps.
- Remove the LH camshafts.
- 133.
Compress the RH secondary timing chain tensioner and install a suitable lockpin to retain the tensioner in the collapsed position.
- 134.NOTE: The VCT bolt and the exhaust camshaft bolt must be discarded and new ones installed. However, the exhaust camshaft washer is reusable.
Remove and discard the RH VCT assembly bolt and the RH exhaust camshaft sprocket bolt.
- Remove the RH VCT assembly, secondary timing chain and the RH exhaust camshaft sprocket as an assembly.
- 136.NOTE: The camshafts must remain in the neutral position during removal or engine damage may occur.
Rotate the RH camshafts counterclockwise to the neutral position.
- 139.NOTE: Cylinder head camshaft bearing caps are numbered to verify that they are assembled in their original positions.
Remove the bolts and the RH camshaft bearing caps.
- Remove the RH camshafts.
- 140.NOTE: If the components are to be reinstalled, they must be installed in the same positions. Mark the components for installation into their original locations.NOTE: LH shown, RH similar.
Remove the valve tappets from the cylinder heads.
- 142.NOTE: Place clean, lint-free shop towels over exposed engine cavities. Carefully remove the towels so foreign material is not dropped into the engine. Any foreign material (including any material created while cleaning gasket surfaces) that enters the oil passages or the oil pan, may cause engine failure.NOTE: Aluminum surfaces are soft and may be scratched easily. Never place the cylinder head gasket surface, unprotected, on a bench surface.NOTE: The cylinder head bolts must be discarded and new bolts must be installed. They are a torque-to-yield design and cannot be reused.NOTE: LH shown, RH similar.
Remove and discard the 8 bolts from each cylinder head.
- Remove the cylinder heads.
- Discard the cylinder head gaskets.
- 143.NOTE: Do not use metal scrapers, wire brushes, power abrasive discs or other abrasive means to clean the sealing surfaces. These tools cause scratches and gouges that make leak paths. Use a plastic scraping tool to remove all traces of the head gasket.NOTE: Observe all warnings or cautions and follow all application directions contained on the packaging of the silicone gasket remover and the metal surface prep.NOTE: If there is no residual gasket material present, metal surface prep can be used to clean and prepare the surfaces.
Clean the cylinder head-to-cylinder block mating surfaces of both the cylinder heads and the cylinder block in the following sequence.
- 1.
Remove any large deposits of silicone or gasket material with a plastic scraper.
- 2.
Apply silicone gasket remover, following package directions, and allow to set for several minutes.
- 3.
Remove the silicone gasket remover with a plastic scraper. A second application of silicone gasket remover may be required if residual traces of silicone or gasket material remain.
- 4.
Apply metal surface prep, following package directions, to remove any remaining traces of oil or coolant and to prepare the surfaces to bond with the new gasket. Do not attempt to make the metal shiny. Some staining of the metal surfaces is normal.
- 1.
- 144.
Support the cylinder head on a bench with the head gasket side up. Check the cylinder head distortion and the cylinder block distortion. For additional information, refer to Engine System General Information .
- 152.
Remove the 8 bolts and the crankshaft rear seal retainer plate.- Discard the plate and seal assembly.
- 153.NOTE: Only use a 3M™ Roloc ® Bristle Disk (2-in white, part number 07528) to clean the engine front cover, oil pan and crankshaft rear seal retainer plate. Do not use metal scrapers, wire brushes or any other power abrasive disk to clean the engine front cover and oil pan. These tools cause scratches and gouges that make leak paths.
Clean the engine front cover and oil pan using a 3M™ Roloc ® Bristle Disk (2-in white, part number 07528) in a suitable tool turning at the recommended speed of 15, 000 rpm.
- Thoroughly wash the engine front cover and oil pan to remove any foreign material, including any abrasive particles created during the cleaning process.
- 154.
Before removing the pistons, inspect the top of the cylinder bores. If necessary, remove the ridge or carbon deposits from each cylinder using an abrasive pad or equivalent, following manufacturer's instructions.
- 155.NOTE: The main bearing cap support brace bolts must be discarded and new bolts must be installed. They are a tighten-to-yield design and cannot be reused.
Remove the bolts in the sequence shown.
- Remove the main bearing cap support brace.
- Discard the bolts.
- 156.NOTE: The connecting rod cap bolts are a torque-to-yield design. The original connecting rod cap bolts will be used when measuring the connecting rod large end bore during assembly. The connecting rod cap bolts will be discarded after measurement.NOTE: Clearly mark the position and orientation of the connecting rods, connecting rod caps and connecting rod bearings for reassembly.
Remove the connecting rod cap bolts and cap.
- 157.NOTE: Do not scratch the cylinder walls or crankshaft journals with the connecting rod.
Remove the piston/rod assembly from the engine block.
- 158.
Repeat the previous 2 steps until all the piston/rod assemblies are removed from the engine block.
- 159.NOTE: The 8 main bearing cap side bolts and the 8 main bearing cap bolts must be discarded and new bolts must be installed. They are a tighten-to-yield design and cannot be reused.NOTE: Clearly mark the position and orientation of the main bearing caps for reassembly.
Remove the 8 main bearing cap side bolts and the 8 main bearing cap bolts in the sequence shown.
- Discard the bolts.
- 160.NOTE: If the main bearings are being reused, mark them for correct position and orientation for reassembly.NOTE: Note the position of the thrust washer on the outside of the No. 4 rear main bearing cap.
Remove the 4 main bearing caps.
- 161.NOTE: Note the position of the 2 thrust washers on the inside and outside of the rear main bearing bulkhead.
Remove the crankshaft.
- 162.NOTE: Inside shown, outside similar.
Remove the 2 crankshaft thrust bearings from the rear main bearing bulkhead.
- 163.NOTE: If the main bearings are being reused, mark them for correct position and orientation for reassembly.
Remove the 4 crankshaft main bearings from the cylinder block.
- 164.NOTE: If the main bearings are being reused, mark them for correct position and orientation for reassembly.
Remove the 4 crankshaft main bearings from the main bearing caps.
- 165.
Inspect the cylinder block, bearing cap support brace, pistons and connecting rods. For additional information, refer to Engine System General Information .
- 166.NOTE: Place clean, lint-free shop towels over exposed engine cavities. Carefully remove the towels so foreign material is not dropped into the engine. Any foreign material (including any material created while cleaning gasket surfaces) that enters the oil passages or the oil pan, may cause engine failure.NOTE: Do not use wire brushes, power abrasive discs or 3M™ Roloc ® Bristle Disk (2-in white, part number 07528) to clean the sealing surfaces. These tools cause scratches and gouges that make leak paths. They also cause contamination that will cause premature engine failure. Remove all traces of sealant.
Clean the sealing surfaces of the cylinder block in the following sequence.
- 1.
Remove any large deposits of silicone or gasket material.
- 2.
Apply silicone gasket remover and allow to set for several minutes.
- 3.
Remove the silicone gasket remover. A second application of silicone gasket remover may be required if residual traces of silicone or gasket material remain.
- 4.
Apply metal surface prep to remove any remaining traces of oil or coolant and to prepare the surfaces to bond. Do not attempt to make the metal shiny. Some staining of the metal surfaces is normal.
- 5.
Make sure the 2 engine front cover locating dowel pins are seated correctly in the cylinder block.
- 1.