Dodge Nitro. Manual — part 4

Fig. 6: Crankshaft Position Sensor & Cylinder Head Cover
Courtesy of CHRYSLER LLC

1 -
CRANKSHAFT
POSITION
SENSOR
2 - CYLINDER
HEAD COVER
3 -
CAMSHAFT
POSITION
SENSOR

2007 Dodge Nitro R/T

2007 ENGINE 3.7L - Service Information - Nitro

18. Disconnect the engine wiring harness at the following points:



Intake air temperature (IAT) sensor



Fuel Injectors



Electronic Throttle Control (ETC)



Idle Air Control (IAC) Motor



Engine Oil Pressure Switch



Engine Coolant Temperature (ECT) Sensor



Manifold Absolute Pressure MAP) Sensor



Camshaft Position (CMP) Sensor



Coil Over Plugs



Crankshaft Position Sensor (2)

19. Remove coil over plugs.

20. Release fuel rail pressure.

21. Remove fuel rail and secure away from engine.

Fig. 7: Identifying Nut, Ground Strap & Brake Booster
Courtesy of CHRYSLER LLC

4 - RIGHT
SIDE
CYLINDER
BLOCK

1 - NUT
2 -
GROUND
STRAP
3 -
BRAKE
BOOSTER

2007 Dodge Nitro R/T

2007 ENGINE 3.7L - Service Information - Nitro

22. Remove the PCV hose.

23. Remove the breather hoses.

24. Remove the vacuum hose for the power brake booster.

25. Disconnect knock sensors.

26. Disconnect the engine to body ground straps (2) at the cowl.

Fig. 8: 3.7L Intake Torque Sequence
Courtesy of CHRYSLER LLC

27. Remove intake manifold.

28. Remove engine oil dipstick tube.

29. Install Engine Lifting Fixture 8427.

30. Secure the left and right engine wiring harnesses away from engine.

31. Raise vehicle.

NOTE:

It is not necessary to release the quick connect fitting from the fuel supply
line for engine removal.

NOTE:

Recheck bolt torque for engine lift plate before removing engine.

2007 Dodge Nitro R/T

2007 ENGINE 3.7L - Service Information - Nitro

Fig. 9: Starter Motor - 3.7L
Courtesy of CHRYSLER LLC

32. Disconnect oxygen sensor wiring.

33. Disconnect the engine block heater power cable, if equipped.

34. Disconnect the front propshaft at the front differential and secure out of way.

35. Remove the ground straps from the left and right side of the block.

36. Disconnect the right and left exhaust pipes at the manifolds and from the crossover, and remove from the

vehicle.

37. Remove the starter. Refer to REMOVAL .

NOTE:

It is necessary to disconnect the front propshaft for access to the starter
and left side exhaust flange.

NOTE:

The exhaust clamps at the manifolds cannot be reused. New clamps must
be used or leaks may occur.

NOTE:

For manual transmission vehicles, the transmission must be removed
from the vehicle, before the engine can be removed. The manual
transmission will contact the floorpan before the engine clears the motor
mounts, so it must be removed.

2007 Dodge Nitro R/T

2007 ENGINE 3.7L - Service Information - Nitro