SPARK PLUG
| Engine | Spark Plug | Electrode Gap |
|---|---|---|
| 2.4L* (with PZEV) | ZFR5AP | 0.8 mm (0.031 in.) |
| 2.4L (without PZEV) | ZFR5F-11 | 1.1 mm (0.043 in.) |
| 3.6L V-6 | RER8ZWYCB4 | 1.0 mm (.040 in.) |
| *Partial Zero Emission Vehicle | ||
Scheme 6
The firing order is 1-3-4-2.
Scheme 7
The firing order is 1-2-3-4-5-6.
IGNITION COIL RESISTANCE
| Engine | Primary Resistance at 21°C-27°C (70°F-80°F) | Secondary Resistance at 21°C-27°C (70°F-80°F) |
|---|---|---|
| 2.4L | 0.495 to 0.605 ohms | 5.13K to 6.27K ohms |
| 3.6L | 0.6 - 0.9 Ohms | 6, 000 - 9, 000 Ohms |
Scheme 8
- Disconnect and isolate the negative battery cable.
- Remove the electrical connector (1).
- Remove the mounting bolt (3) and ignition capacitor (2).
Scheme 9
- Disconnect and isolate the negative battery cable.
- Remove the electrical connector (1).
- Remove the mounting bolt (3) and the ignition capacitor (2).
2.4L
- Install the ignition coil capacitor (2) with bolt (3) tightened to 10 N.m (88.5 ft. lbs.).
- Connect the electrical connector (1).
- Connect the negative battery cable and tighten nut to 5 N.m (45 in. lbs.).
3.6L
- Install the ignition coil capacitor (2) and bolt (3). Tighten the bolt to 10 N.m (89 in. lbs.).
- Connect the electrical connector (1).
- Connect the negative battery cable and tighten nut to 5 N.m (45 in. lbs.).
Scheme 10
Note. Prior to removing the coil, spray compressed air around coil top to make sure no dirt drops into the spark plug tube.
The electronic ignition coil attaches directly to the valve cover.
Scheme 11
Scheme 12
- Remove and isolate the negative battery cable.
- Disconnect the electrical connector from the ignition coil.
- Remove the ignition coil mounting bolts.
- Remove the ignition coil.
Scheme 13
Scheme 14
- Disconnect and isolate the negative battery cable.
- If removing the ignition coils from cylinders 1 and 3 on the RH side of the engine, first remove the resonator. Refer to «RESONATOR, AIR CLEANER, REMOVAL»(ref-485476-S12665908032012071300000) .
- If removing the ignition coils from cylinders 2, 4 or 6 on the LH side of the engine, first remove the upper intake manifold (2) and insulator. Refer to «MANIFOLD, INTAKE, REMOVAL»(ref-485475-S07216809162012071300000) or «MANIFOLD, INTAKE, REMOVAL»(ref-485476-S08989499162012071300000) . NOTE: The LH ignition coils are shown in illustration, the RH ignition coils are similar.
- Unlock and disconnect the electrical connector (1) from the ignition coil.
- Remove the ignition coil mounting bolt (3).
- Pull the ignition coil (2) from cylinder head cover opening with a slight twisting action.
- Install the ignition coil.
- Install the bolt and tighten to 9 N.m (79.5 in. lbs.).
- Connect and lock the electrical connectors.
- Install the negative battery cable and tighten nut to 5 N.m (45 in. lbs.).
Scheme 15
Scheme 16
Scheme 17
- Using compressed air, blow out any dirt or contaminants from around the top of spark plug.
- Check the condition of the ignition coil rubber boot (1). Inspect the opening of the boot (2) for any debris, tears or rips. Carefully remove any debris with a lint free cloth. CAUTION: Do not apply a silicone based grease such as Mopar® Dielectric Grease to the ignition coil rubber boot. The silicone based grease will absorb into the boot causing it to stick and tear.
- Place a small, 360° bead of Fluostar 2LF lubricant (1) along the inside opening of the coil boot approximately 1 to 2 mm from the chamfer edge but not on the chamfered surface. NOTE: The LH ignition coils are shown in illustration, the RH ignition coils are similar.
- Position the ignition coil (2) into the cylinder head cover opening. Using a twisting action, push the ignition coil onto the spark plug.
- Install the ignition coil mounting bolt (3) and tighten to 8 N.m (71 in.lbs).
- Connect and lock the electrical connector (1) to the ignition coil (2).
- If removed, install the insulator, upper intake manifold (1) and air inlet hose. Refer to «MANIFOLD, INTAKE, INSTALLATION»(ref-485475-S29053187612012071300000) or «MANIFOLD, INTAKE, INSTALLATION»(ref-485476-S22061755042012071300000) .
- Connect the negative battery cable and tighten nut to 5 N.m (45 in. lbs.).
Scheme 18
Note. The graphic represents the relationship between camshaft and crankshaft sensors edges with camshafts in "lock pin" position (cam shafts are not "phasing"). This is normally seen during idle.
Depiction of good camshaft and crankshaft square wave signals for 4 cylinder engines.
Scheme 19
Depiction of good camshaft and crankshaft square wave signals for 6 cylinder engines.
Scheme 20
| CAUTION | The magnetic timing wheels must not come in contact with magnets (pickup tools, trays, etc.) or any other strong magnetic field. This will destroy the timing wheels ability to correctly relay camshaft position to the camshaft position sensor. |
The 3.6 liter engine uses a Dual Over Head Camshaft (DOHC) configuration. The camshafts are a nodular cast iron design and have two pressed on magnetic timing wheels (1) that are magnetically encoded.
The Camshaft Position Sensors (CMP) are mounted between the timing wheels (1).
Scheme 21
Scheme 22
- Remove the air cleaner to throttle body hose and disconnect the inlet air temperature sensor electrical connector.
- Disconnect and isolate the negative battery cable.
- Disconnect the electrical connector from the camshaft position sensor.
- Remove the camshaft position sensor mounting screws.
- Remove the sensor.
Scheme 23
Scheme 24
- Disconnect and isolate the negative battery cable.
- Disconnect the electrical connector from the sensor.
- Remove the nut retaining the heat shield.
- Pull the heat shield out to uncover the sensor.
- Remove the mounting bolt.
- Remove the sensor.
| CAUTION | The magnetic timing wheels (1) must not come in contact with magnets (pickup tools, trays, etc.) or any other strong magnetic field. This will destroy the timing wheels ability to correctly relay camshaft position to the camshaft position sensor. |
The Camshaft Position (CMP) sensors are located at the rear of the cylinder head covers and are bolted to the cylinder head.
Scheme 25
Scheme 26
- Disconnect and isolate the negative battery cable.
- Remove the air cleaner body. Refer to «BODY, AIR CLEANER, REMOVAL»(ref-485475-S36552825552012071300000) or «BODY, AIR CLEANER, REMOVAL»(ref-485476-S11662508332012071300000) .
- If removing the LH CMP sensor, first remove the upper intake manifold (2). Refer to «MANIFOLD, INTAKE, REMOVAL»(ref-485475-S07216809162012071300000) or «MANIFOLD, INTAKE, REMOVAL»(ref-485476-S08989499162012071300000) . NOTE: The RH CMP sensor is shown in illustration, the LH CMP sensor is similar. If removing both RH and LH CMP sensors, mark the sensors so they can be installed in their original locations.
- Disconnect the electrical connector (1) from the CMP sensor.
- Loosen the sensor mounting bolt (2).
- Pull the sensor and mounting bolt from the cylinder head cover.
- The O-ring seal (1) can be reused if not damaged.
2.4L FRONT
| CAUTION | Install camshaft position (CMP) sensor utilizing twisting motion. Make sure CMP sensor is fully seated. Do not drive CMP sensor into the bore with mounting screw. This may cause CMP sensor to be incorrectly seated causing a faulty signal or no signal at all. |
- Lubricate the sensor O-ring.
- Install the CMP sensor with mounting bolt tightened to 9 N.m (79.5 in. lbs.).
- Connect the electrical connector to the camshaft position sensor.
- Install the negative battery cable and tighten nut to 5 N.m (45 in. lbs.).
- Install the air cleaner to throttle body hose and connect the inlet air temperature sensor electrical connector.
2.4L REAR
| CAUTION | Install camshaft position (CMP) sensor utilizing twisting motion. Make sure CMP sensor is fully seated. Do not drive CMP sensor into the bore with mounting screw. This may cause CMP sensor to be incorrectly seated causing a faulty signal or no signal at all. |
- Lubricate the sensor O-ring.
- Install the CMP sensor with mounting bolt tightened to 9 N.m (79.5 in. lbs.).
- Connect the electrical connector to the camshaft position sensor.
- Install the heat shield onto the mounting stud.
- Install and tighten the heat shield retaining nut.
- Connect the electrical connector.
- Install the negative battery cable and tighten nut to 5 N.m (45 in. lbs.).
| CAUTION | The magnetic timing wheels (1) must not come in contact with magnets (pickup tools, trays, etc.) or any other strong magnetic field. This will destroy the timing wheels ability to correctly relay camshaft position to the camshaft position sensor. |
Scheme 27
Scheme 28
Scheme 29
- Clean out the camshaft position (CMP) sensor mounting bolt hole (2) in cylinder head.
- The CMP sensor seal (1) can be reused if not damaged.
- If required, install a new CMP sensor seal (2) in the cylinder head cover: Lubricate the CMP sensor seal inner and outer diameters with clean engine oil. Place the CMP sensor seal (2) on the Cam Sensor/Spark Plug Tube Seal Installer (special tool #10256, Installer, Cam Installer, Cam Sensor/ Spark Plug Tube Seal) (1). Push the seal into the cylinder head cover until the base of the seal is seated. Remove the tool. NOTE: A properly installed CMP sensor seal (1) will have a 1.5 - 2.0 mm (0.06 - 0.08 in.) gap (2) between the cylinder head cover and the seal upper flange.
- The sensor mounting bolt O-ring (1) can be reused if not damaged.
- Apply a small amount of engine oil to the sensor mounting bolt O-ring (1). NOTE: The RH CMP sensor is shown in illustration, the LH CMP sensor is similar. If both RH and LH CMP sensors where removed, install them into their original locations.
- Install the CMP sensor to the cylinder head. Tighten the mounting bolt (2) to 9 N.m (80 in. lbs.).
- Connect the electrical connector (1) to the sensor.
- Following installation of the LH CMP sensor, install the upper intake manifold (1). Refer to «MANIFOLD, INTAKE, INSTALLATION»(ref-485475-S29053187612012071300000) or «MANIFOLD, INTAKE, INSTALLATION»(ref-485476-S22061755042012071300000) .
- Install the air cleaner body. Refer to «BODY, AIR CLEANER, INSTALLATION»(ref-485475-S14868414802012071300000) or «BODY, AIR CLEANER, INSTALLATION»(ref-485476-S11483727402012071300000) .
- Connect the negative battery cable and tighten nut to 5 N.m (45 in. lbs.).
Note. The Cam/Crank Variation Relearn procedure must be performed using the scan tool anytime there has been a repair/replacement made to a powertrain system, for example: flywheel, valvetrain, camshaft and/or crankshaft sensors or components.
Scheme 30
The knock sensor bolts into the side of the cylinder block in front of the starter under the intake manifold.
Scheme 31
Scheme 32
- Disconnect and isolate the negative battery cable.
- Remove the bolt holding the knock sensor.
- Remove the sensor with the electrical connector attached.
- Disconnect the electrical connector from the knock sensor.
- Remove the knock sensor.
Scheme 33
Note. The forward sensor (1) is known to the powertrain control module (PCM) as knock sensor 1. The rear sensor (3) is known to the PCM as knock sensor 2.
- Perform the fuel pressure release procedure. Refer to «FUEL DELIVERY, GAS, STANDARD PROCEDURE»(ref-485510-S12963059542012071300000) .
- Disconnect and isolate the negative battery cable.
- Drain the cooling system. Refer to «STANDARD PROCEDURE»(ref-485484-S02211614932012071300000) .
- Remove the air cleaner housing assembly, upper and lower intake manifolds and the oil filter housing. Refer to «HOUSING, OIL FILTER, REMOVAL»(ref-485476-S14402951682012071300000) .
- Remove the electrical connector (4). NOTE: There may be a foam strip on the bolt threads. This foam is used only to retain the bolts to the sensors for plant assembly. It is not used as a sealant. Do not apply any adhesive, sealant or thread locking compound to these bolts.
- Remove the mounting bolt (2) and knock sensor 1 (1) or knock sensor 2 (3).
The knock sensor bolts into the side of the cylinder block in front of the starter under the intake manifold.
- Connect the electrical connector to the knock sensor.
- Install the knock sensor and tighten the knock sensor bolt to 22 N.m (195 in. lbs.). Over or under tightening effects knock sensor performance, possibly causing improper spark control.
- Install the negative battery cable and tighten nut to 5 N.m (45 in. lbs.).
Note. The forward sensor (1) is known to the powertrain control module (PCM) as knock sensor 1. The rear sensor (3) is known to the PCM as knock sensor 2.
- Thoroughly clean the knock sensor mounting holes. NOTE: Over or under tightening the sensor mounting bolts will affect knock sensor performance, possibly causing improper spark control. Always use the specified torque when installing the knock sensors. The torque specification for the knock sensor bolt is less than the typical 8 mm bolt. NOTE: There may be a foam strip on the bolt threads. This foam is used only to retain the bolts to the sensors for plant assembly. It is not used as a sealant. Do not apply any adhesive, sealant or thread locking compound to these bolts.
- Install knock sensor 1 (1) or knock sensor 2 (3) with mounting bolt (2). Tighten the mounting bolt to 22 N.m (16 ft. lbs.).
- Connect the electrical connector (4).
- Install the oil filter housing, upper and lower intake manifolds and air cleaner housing assembly. Refer to «HOUSING, OIL FILTER, INSTALLATION»(ref-485476-S25193169502012071300000) .
- If removed, install the oil filter and fill the engine crankcase with the proper oil to the correct level. Refer to «LUBRICATION»(ref-485475-S36464352752012071300000) or «LUBRICATION»(ref-485476-S17182098622012071300000) .
- Connect the negative battery cable and tighten nut to 5 N.m (45 in. lbs.).
- Fill the cooling system. Refer to «STANDARD PROCEDURE»(ref-485484-S02211614932012071300000) .
- Operate the engine until it reaches normal operating temperature. Check cooling system for correct fluid level. Refer to «STANDARD PROCEDURE»(ref-485484-S02211614932012071300000) .
Scheme 34
Variable valve timing solenoid assembly. The solenoid receives pulse width modulation signal and the current is controlled within 0 ma to 1000 ma. The spool position is controllable at any position to control supply of oil between the advance and retard ports.
FRONT SOLENOID 1/1
- Solenoid for front location 1/1. Note mounting tab location is different between front and rear solenoids.
- Install solenoid into cylinder head.
- Install mounting bolt and tighten to 12 N.m (9 ft. lbs.).
- Install oil pressure sensor.
- Connect electrical connector to oil pressure sensor.
- Connect electrical connector to Variable valve timing solenoid.
- Connect negative battery cable.
- Install engine cover.
REAR SOLENOID 1/2
- Rear variable valve timing solenoid. Note mounting tab location is different between front and rear solenoids.
- Install solenoid into cylinder head.
- Install mounting bolt and tighten to 12 N.m (9 ft. lbs.).
- Connect electrical connector to Variable valve timing solenoid.
- Connect negative battery cable.
- Install engine cover.
Scheme 35
The 3.6L engine is equipped with Variable Valve Timing (VVT). This system adjusts the timing of all four camshafts independently using solenoids and oil control valves to direct oil pressure into the camshaft phaser assemblies. The camshaft phaser assembly advances and/or retards camshaft timing to improve engine performance, mid-range torque, idle quality, fuel economy, and reduce emissions. The four VVT solenoids are located on the front of the cylinder head covers. The pintle should move freely within the solenoid body. Do not attempt to disassemble the solenoids, they are not serviceable. The solenoids are identical but should be installed in the same location as removed.
Scheme 36
Camshaft phaser position is adjusted using regulated oil pressure through an Oil Control Valve (OCV) (3). To begin Phaser movement, the Powertrain Control Module (PCM) applies a pulse-width modulated voltage signal to the VVT solenoid (1) to extend or retract the solenoid pintle (4). The pintle pushes against an internal spool valve (2) within the OCV moving the valve forwards and backwards to direct oil flow. The position of the spool inside the OCV determines which ports and chambers inside the phaser are being fed, either to advance the timing of the phaser sprocket relative to the camshaft, retard it, or hold a desired position. Refer to OPERATION or OPERATION .
The Camshaft Position (CMP) sensor monitors the position of the camshaft with respect to the crankshaft and provides feedback to the PCM.
Scheme 37
Scheme 38
- Disconnect and isolate the negative battery cable. NOTE: Mark the variable valve timing solenoid connectors (1) with a paint pen or equivalent so that they may be reinstalled in their original locations.
- Mark the intake variable valve timing solenoid (4) and the exhaust variable valve timing solenoid (2) with a paint pen or equivalent so that they may be reinstalled in their original locations.
- Disconnect the electrical connector (1) from the variable valve timing solenoid.
- Remove the variable valve timing solenoid mounting bolts (3).
- Pull the variable valve timing solenoid from the cylinder head cover.
- The seal (1) can be reused if not damaged.
Scheme 39
Scheme 40
- Disconnect and isolate the negative battery cable.
- Recover the refrigerant from the refrigerant system. Refer to «PLUMBING, STANDARD PROCEDURE»(ref-485480-S27112582802012071300000) .
- Remove the resonator. Refer to «RESONATOR, AIR CLEANER, REMOVAL»(ref-485476-S12665908032012071300000) .
- Remove the upper A/C liquid and suction line assembly (1). Refer to «LINE, A/C SUCTION, REMOVAL»(ref-485480-S42702320052012071300000) . NOTE: Mark the variable valve timing solenoid connectors (1) with a paint pen or equivalent so that they may be reinstalled in their original locations.
- Mark the intake variable valve timing solenoid (2) and the exhaust variable valve timing solenoid (4) with a paint pen or equivalent so that they may be reinstalled in their original locations.
- Disconnect the electrical connector (1) from the variable valve timing solenoid.
- Remove the variable valve timing solenoid mounting bolts (3).
- Pull the variable valve timing solenoid from the cylinder head cover.
- The seal (1) can be reused if not damaged.
LEFT
- Install the variable valve timing solenoid seals (1). The seals can be reused if not damaged.
- Refer to the markings made at disassembly and install the intake variable valve timing solenoid (4) and the exhaust variable valve timing solenoid (2) in their original locations.
- Install the variable valve timing solenoid mounting bolts (3) and tighten to 4 N.m (35 in. lbs.).
- Connect the electrical connector (1) to the variable valve timing solenoid.
- Connect the negative battery cable and tighten nut to 5 N.m (45 in. lbs.).
Note. The Cam/Crank Variation Relearn procedure must be performed using the scan tool anytime there has been a repair/replacement made to a powertrain system, for example: flywheel, valvetrain, camshaft and/or crankshaft sensors or components.
RIGHT
- Install the variable valve timing solenoid seals (1). The seals can be reused if not damaged.
- Refer to the markings made at disassembly and install the intake variable valve timing solenoid (2) and the exhaust variable valve timing solenoid (4) in their original locations.
- Install the variable valve timing solenoid mounting bolts (3) and tighten to 4 N.m (35 in. lbs.).
- Connect the electrical connector (1) to the variable valve timing solenoid.
- Install the upper A/C liquid and suction line assembly (1). Refer to «LINE, A/C SUCTION, INSTALLATION»(ref-485480-S11551103932012071300000) .
- Install the resonator. Refer to «RESONATOR, AIR CLEANER, INSTALLATION»(ref-485476-S11419390602012071300000) .
- Connect the negative battery cable and tighten nut to 5 N.m (45 in. lbs.).
Note. The Cam/Crank Variation Relearn procedure must be performed using the scan tool anytime there has been a repair/replacement made to a powertrain system, for example: flywheel, valvetrain, camshaft and/or crankshaft sensors or components.
Note. Prior to removing the coil, spray compressed air around coil top to make sure no dirt drops into the spark plug tube.
Scheme 41
- Disconnect and isolate the negative battery cable.
- Disconnect the electrical connectors from the ignition coils.
- Remove the ignition coil mounting bolt.
- Twist the ignition coil then pull straight up. NOTE: Prior to loosening the spark plug, use compressed air to blow out any debris that might be in the spark plug tube.
- Remove the spark plug using a quality socket with a rubber or foam insert.
- Inspect the spark plug condition.
Note. The LH ignition coils are shown in illustration, the RH ignition coils are similar.
Scheme 42
- Remove the ignition coil (2). Refer to «COIL, IGNITION, REMOVAL»(ref-485509-S30847409012012071300000) .
- Prior to removing the spark plug, spray compressed air into the cylinder head opening. This will help prevent foreign material from entering the combustion chamber. CAUTION: The spark plug tubes (1) are a thin wall design. Avoid damaging the spark plug tubes. Damage to the spark plug tube can result in oil leaks.
- Remove the spark plug from the cylinder head using a quality thin wall socket with a rubber or foam insert.
- Inspect the spark plug condition.
| CAUTION | Handle the spark plugs with care. Do not drop or force the spark plugs into the wells, damage to the electrodes and/or porcelain body may occur. Always start each spark plug by hand in order to avoid cross-threading the spark plug in the cylinder head. Always tighten spark plugs to the specified torque. Too much or not enough torque will cause damage to the cylinder head and/or spark plug and may lead to poor engine performance. |
- Install each spark plug to the cylinder head. Tighten spark plugs to 27 N.m (20 ft. lbs.).
- Install the ignition coil onto the spark plug.
- Install the ignition coil mounting bolt and tighten to 9 N.m (79.5 in. lbs.).
- Connect the ignition coil electrical connectors.
- Install the negative battery cable and tighten nut to 5 N.m (45 in. lbs.).
Scheme 43
- Check and adjust the spark plug gap with a gap gauging tool (1) Refer to «SPECIFICATIONS»(ref-485509-S37700686142012071300000) . CAUTION: Special care should be taken when installing spark plugs into the cylinder head spark plug wells. Be sure the plugs do not drop into the plug wells as electrodes can be damaged. CAUTION: The spark plug tubes (1) are a thin wall design. Avoid damaging the spark plug tubes. Damage to the spark plug tube can result in oil leaks.
- Start the spark plug into the cylinder head by hand to avoid cross threading. CAUTION: Spark plug torque is critical and must not exceed the specified value. Overtightening stretches the spark plug shell reducing its heat transfer capability resulting in possible catastrophic engine failure.
- Tighten the spark plugs to 17.5 N.m (13 ft. lbs.). NOTE: The LH ignition coils are shown in illustration, the RH ignition coils are similar.
- Install the ignition coil (2) Refer to «COIL, IGNITION, INSTALLATION»(ref-485509-S40080226732012071300000) .
Scheme 44
- Disconnect and isolate the negative battery cable.
- To remove the ignition switch, follow the procedure to remove the Sentry Key Immobilizer (SKREEM) module. Refer to «MODULE, SENTRY KEY IMMOBILIZER (SKREEM), REMOVAL»(ref-485511-S41522662122012071300000) .
- If required, remove the SKREEM module (3) from the ignition key cylinder (2).
- If required, remove the ignition switch (1) from the ignition key cylinder (2).