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2/3 wire CAM sensor not interchangable
The 2 wire and 3 wire cam sensors are NOT interchangable. Swap the cam sensor to match the PCM used. The wiring harness will also have to agree. Note, suggest using the correct tool to install the cam sensor.
Ford TSB 02-22-1
Article No.
02-22-1
11/11/02
^ DRIVEABILITY - SURGE/ROLLING IDLE - GEAR
DRIVEN SYNCHRONIZERS - INCORRECT
INSTALLATION - CAMSHAFT POSITION
SYNCHRONIZER (CMP) INSTALLATION TOOL
CORRECT APPLICATION
^ ENGINE - GEAR DRIVEN SYNCHRONIZERS -
INCORRECT INSTALLATION - CAMSHAFT POSITION
SYNCHRONIZER (CMP) INSTALLATION TOOL
CORRECT APPLICATION
FORD:
1994-1997 THUNDERBIRD
1995-2003 TAURUS
1996-2003 MUSTANG
1995-1997 AEROSTAR
1995-2003 RANGER, WINDSTAR
1996-2000 EXPLORER
1997-2003 E SERIES, F-150
MERCURY:
1994-1997 COUGAR
1995-2003 SABLE
1997-2000 MOUNTAINEER
ISSUE
Incorrectly installed gear driven camshaft position (CMP) sensor synchronizer assemblies may be hard to diagnose. Vehicle may exhibit poor fuel economy, driveability Diagnostic Trouble Codes (DTCs) P1336, P1309, P0340 with MIL light on. Loss of power, surge, hesitation and runs rough on acceleration may also be present.
ACTION
New diagnostics have been developed for WDS to diagnose incorrectly installed gear driven camshaft position (CMP) synchronizer assemblies. Refer to the following Service Procedure to diagnose a possible mis-installed synchronizer assembly and proper installation procedure.
SERVICE INFORMATION
Items Covered In This Article
^ "Hall" vs. "VRS" sensor function
^ Vehicle history scrutiny for past service of the synchronizer assembly
^ WDS - Power balance test
^ WDS - CMP and CKP wave signal comparison
^ Wave Comparison chart - CMP vs. CKP
^ Correct (CMP) synchronizer installation tool application & installation procedure
^ "Top Dead Center" (TDC) alignment
^ Synchronizer installation tool application chart
Hall - Effect (Hall) and Variable Reluctance (VRS) CMP Sensors
CMP sensors are used on all current model year engines, regardless of fuel system or ignition system type. The CMP sensor provides the Powertrain Control Module (PCM) with cam position information to indicate # 1 cylinder, on the compression stroke
There are two different types of CMP sensors:
^ The three-pin, Hall-effect sensor (Figure 1)
^ The two-pin Variable Reluctance sensor (Figure 1)
Although the Hall-effect (three-pin) and the Variable Reluctance (two-pin) CMP sensors perform the same function, their signal appearance is quite different and they are not interchangeable.
The 2 wire and 3 wire cam sensors are NOT interchangable. Swap the cam sensor to match the PCM used. The wiring harness will also have to agree. Note, suggest using the correct tool to install the cam sensor.
Ford TSB 02-22-1
Article No.
02-22-1
11/11/02
^ DRIVEABILITY - SURGE/ROLLING IDLE - GEAR
DRIVEN SYNCHRONIZERS - INCORRECT
INSTALLATION - CAMSHAFT POSITION
SYNCHRONIZER (CMP) INSTALLATION TOOL
CORRECT APPLICATION
^ ENGINE - GEAR DRIVEN SYNCHRONIZERS -
INCORRECT INSTALLATION - CAMSHAFT POSITION
SYNCHRONIZER (CMP) INSTALLATION TOOL
CORRECT APPLICATION
FORD:
1994-1997 THUNDERBIRD
1995-2003 TAURUS
1996-2003 MUSTANG
1995-1997 AEROSTAR
1995-2003 RANGER, WINDSTAR
1996-2000 EXPLORER
1997-2003 E SERIES, F-150
MERCURY:
1994-1997 COUGAR
1995-2003 SABLE
1997-2000 MOUNTAINEER
ISSUE
Incorrectly installed gear driven camshaft position (CMP) sensor synchronizer assemblies may be hard to diagnose. Vehicle may exhibit poor fuel economy, driveability Diagnostic Trouble Codes (DTCs) P1336, P1309, P0340 with MIL light on. Loss of power, surge, hesitation and runs rough on acceleration may also be present.
ACTION
New diagnostics have been developed for WDS to diagnose incorrectly installed gear driven camshaft position (CMP) synchronizer assemblies. Refer to the following Service Procedure to diagnose a possible mis-installed synchronizer assembly and proper installation procedure.
SERVICE INFORMATION
Items Covered In This Article
^ "Hall" vs. "VRS" sensor function
^ Vehicle history scrutiny for past service of the synchronizer assembly
^ WDS - Power balance test
^ WDS - CMP and CKP wave signal comparison
^ Wave Comparison chart - CMP vs. CKP
^ Correct (CMP) synchronizer installation tool application & installation procedure
^ "Top Dead Center" (TDC) alignment
^ Synchronizer installation tool application chart
Hall - Effect (Hall) and Variable Reluctance (VRS) CMP Sensors
CMP sensors are used on all current model year engines, regardless of fuel system or ignition system type. The CMP sensor provides the Powertrain Control Module (PCM) with cam position information to indicate # 1 cylinder, on the compression stroke
There are two different types of CMP sensors:
^ The three-pin, Hall-effect sensor (Figure 1)
^ The two-pin Variable Reluctance sensor (Figure 1)
Although the Hall-effect (three-pin) and the Variable Reluctance (two-pin) CMP sensors perform the same function, their signal appearance is quite different and they are not interchangeable.
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