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Old 01-22-2013, 09:41 AM
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just to say hi and help me obi won

on my second jeep had a v8 grand but caved from petrol costs , now have a cherokee kj crd 2005 2.8. seems like i only post on any forums when i have problems. i'm thinking its the crank position sensor and i am currently searching for any help i can get particularly a photo of the brutes position would be nice.
thanks in advance jeepsters, see you on the boards
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  #2  
Old 01-22-2013, 09:55 AM
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Re: just to say hi and help me obi won

here is the info you seek , pics up shortly , I will




This information comes from the 2003 FSM (Factory Service Manual). It should be the same (or about the same) for all years, however there are no guarantees that it is the same. This information is for the 2.4L I4 and the 3.7L V6.

CRANKSHAFT POSITION
SENSOR
DESCRIPTION

2.4L
The Crankshaft Position (CKP) sensor is mounted
into the right front side of the cylinder block (Fig. 2).
It is positioned and bolted into a machined hole.

3.7L
The Crankshaft Position (CKP) sensor is mounted
into the right rear side of the cylinder block (Fig. 3).
It is positioned and bolted into a machined hole.



Click this bar to view the full image.





location on a 2.8



OPERATION

2.4L
Engine speed and crankshaft position are provided
through the CKP (Crankshaft Position) sensor. The
sensor generates pulses that are the input sent to the
Powertrain Control Module (PCM). The PCM interprets
the sensor input to determine the crankshaft
position. The PCM then uses this position, along with
other inputs, to determine injector sequence and ignition
timing.
The sensor is a hall effect device combined with an
internal magnet. It is also sensitive to steel within a
certain distance from it.
A tonewheel (targetwheel) is a part of the engine
crankshaft (Fig. 4). This tonewheel has sets of
notches at its outer edge. The notches cause a pulse to be generated when
they pass under the sensor. The pulses are the input
to the PCM.



3.7L
Engine speed and crankshaft position are provided
through the CKP (Crankshaft Position) sensor. The
sensor generates pulses that are the input sent to the
Powertrain Control Module (PCM). The PCM interprets
the sensor input to determine the crankshaft
position. The PCM then uses this position, along with
other inputs, to determine injector sequence and ignition
timing.
The sensor is a hall effect device combined with an
internal magnet. It is also sensitive to steel within a
certain distance from it.
A tonewheel (targetwheel) is bolted to the engine
crankshaft (Fig. 5). This tonewheel has sets of
notches at its outer edge (Fig. 5).
The notches cause a pulse to be generated when
they pass under the sensor. The pulses are the input
to the PCM.



REMOVAL

2.4L
The Crankshaft Position (CKP) sensor is mounted
into the right front side of the cylinder block (Fig. 6).
It is positioned and bolted into a machined hole.
(1) Disconnect sensor electrical connector.
(2) Remove sensor bolt.
(3) Carefully twist sensor from cylinder block.
(4) Check condition of sensor o-ring (Fig. 7).

Click this bar to view the full image.





3.7L
The Crankshaft Position (CKP) sensor is mounted
into the right rear side of the cylinder block (Fig. 8).
It is positioned and bolted into a machined hole.
(1) Raise vehicle.
(2) Disconnect sensor electrical connector.
(3) Remove sensor mounting bolt (Fig. 8).
(4) Carefully twist sensor from cylinder block.
(5) Check condition of sensor o-ring.

Click this bar to view the full image.


INSTALLATION

2.4L
(1) Clean out machined hole in engine block.
(2) Apply a small amount of engine oil to sensor
o-ring.
(3) Install sensor into engine block with a slight
rocking action. Do not twist sensor into position as
damage to o-ring may result.

CAUTION: Before tightening sensor mounting bolt,
be sure sensor is completely flush to cylinder
block. If sensor is not flush, damage to sensor
mounting tang may result.

(4) Install mounting bolt and tighten to 28 Nm
(21 ft. lbs.) torque.
(5) Connect electrical connector to sensor.

3.7L
(1) Clean out machined hole in engine block.
(2) Apply a small amount of engine oil to sensor
o-ring.
(3) Install sensor into engine block with a slight
rocking and twisting action.

CAUTION: Before tightening sensor mounting bolt,
be sure sensor is completely flush to cylinder
block. If sensor is not flush, damage to sensor
mounting tang may result.

(4) Install mounting bolt and tighten to 28 Nm
(21 ft. lbs.) torque.
(5) Connect electrical connector to sensor.
(6) Lower vehicle.
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  #3  
Old 01-22-2013, 10:12 AM
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Re: just to say hi and help me obi won

moved to the liberty section to find you more help
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Old 01-22-2013, 12:25 PM
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Re: just to say hi and help me obi won

thanks for the speedy response, i am just ordering the crank position sensor 5066856AA but it will probably be the weekend before i get to attempt fitting assuming this snow clears. i hope it sorts out my problems as being without a car is pretty damn inconvenient.
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Old 01-22-2013, 12:34 PM
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Re: just to say hi and help me obi won

Quote:
Originally Posted by spyder873 View Post
here is the info you seek , pics up shortly , I will




This information comes from the 2003 FSM (Factory Service Manual). It should be the same (or about the same) for all years, however there are no guarantees that it is the same. This information is for the 2.4L I4 and the 3.7L V6.

CRANKSHAFT POSITION
SENSOR
DESCRIPTION

2.4L
The Crankshaft Position (CKP) sensor is mounted
into the right front side of the cylinder block (Fig. 2).
It is positioned and bolted into a machined hole.

3.7L
The Crankshaft Position (CKP) sensor is mounted
into the right rear side of the cylinder block (Fig. 3).
It is positioned and bolted into a machined hole.



Click this bar to view the full image.





location on a 2.8



OPERATION

2.4L
Engine speed and crankshaft position are provided
through the CKP (Crankshaft Position) sensor. The
sensor generates pulses that are the input sent to the
Powertrain Control Module (PCM). The PCM interprets
the sensor input to determine the crankshaft
position. The PCM then uses this position, along with
other inputs, to determine injector sequence and ignition
timing.
The sensor is a hall effect device combined with an
internal magnet. It is also sensitive to steel within a
certain distance from it.
A tonewheel (targetwheel) is a part of the engine
crankshaft (Fig. 4). This tonewheel has sets of
notches at its outer edge. The notches cause a pulse to be generated when
they pass under the sensor. The pulses are the input
to the PCM.



3.7L
Engine speed and crankshaft position are provided
through the CKP (Crankshaft Position) sensor. The
sensor generates pulses that are the input sent to the
Powertrain Control Module (PCM). The PCM interprets
the sensor input to determine the crankshaft
position. The PCM then uses this position, along with
other inputs, to determine injector sequence and ignition
timing.
The sensor is a hall effect device combined with an
internal magnet. It is also sensitive to steel within a
certain distance from it.
A tonewheel (targetwheel) is bolted to the engine
crankshaft (Fig. 5). This tonewheel has sets of
notches at its outer edge (Fig. 5).
The notches cause a pulse to be generated when
they pass under the sensor. The pulses are the input
to the PCM.



REMOVAL

2.4L
The Crankshaft Position (CKP) sensor is mounted
into the right front side of the cylinder block (Fig. 6).
It is positioned and bolted into a machined hole.
(1) Disconnect sensor electrical connector.
(2) Remove sensor bolt.
(3) Carefully twist sensor from cylinder block.
(4) Check condition of sensor o-ring (Fig. 7).

Click this bar to view the full image.





3.7L
The Crankshaft Position (CKP) sensor is mounted
into the right rear side of the cylinder block (Fig. 8).
It is positioned and bolted into a machined hole.
(1) Raise vehicle.
(2) Disconnect sensor electrical connector.
(3) Remove sensor mounting bolt (Fig. 8).
(4) Carefully twist sensor from cylinder block.
(5) Check condition of sensor o-ring.

Click this bar to view the full image.


INSTALLATION

2.4L
(1) Clean out machined hole in engine block.
(2) Apply a small amount of engine oil to sensor
o-ring.
(3) Install sensor into engine block with a slight
rocking action. Do not twist sensor into position as
damage to o-ring may result.

CAUTION: Before tightening sensor mounting bolt,
be sure sensor is completely flush to cylinder
block. If sensor is not flush, damage to sensor
mounting tang may result.

(4) Install mounting bolt and tighten to 28 Nm
(21 ft. lbs.) torque.
(5) Connect electrical connector to sensor.

3.7L
(1) Clean out machined hole in engine block.
(2) Apply a small amount of engine oil to sensor
o-ring.
(3) Install sensor into engine block with a slight
rocking and twisting action.

CAUTION: Before tightening sensor mounting bolt,
be sure sensor is completely flush to cylinder
block. If sensor is not flush, damage to sensor
mounting tang may result.

(4) Install mounting bolt and tighten to 28 Nm
(21 ft. lbs.) torque.
(5) Connect electrical connector to sensor.
(6) Lower vehicle.


Thank you Master Spyder !!
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Old 01-22-2013, 12:36 PM
spyder873's Avatar
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Re: just to say hi and help me obi won

LLMAO Your Welcome! lol
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