Engine Cranks But Will Not Start – 2005-2007 Chrysler & Jeep

NUMBER: 09-004-07
GROUP: Engine
DATE: September 25, 2007

 

SUBJECT:

Engine Cranks But Will Not Start

 

OVERVIEW:

This bulletin involves checking for Camshaft and Crankshaft Synchronization using a StarSCAN. Checking the Julian date on the sensor and if necessary, replacing Crankshaft Position Sensor.

 

MODELS:

2006 – 2007	(LE)	300C/300C Touring (International Markets)
2007	(WK)	Grand Cherokee
2005 – 2007	(WH)	Grand Cherokee (International Markets)
2006 – 2007	(XH)	Commander (International Markets)

 

NOTE: This bulletin applies to the above listed vehicles equipped with a 3.0L Diesel engine (sales code EXL) built before the following dates:

• (LE) built before March 29, 2007 (MDH 0329XX)
• (WH) built before March 28, 2007 (MDH 0328XX)
• (WK) built before June 12, 2007 (MDH0612XX)
• (XH) built before March 28, 2007 (MDH 0328XX)

 

SYMPTOM/CONDITION:

The engine cranks but will not start.

 

DIAGNOSIS:

1. Using a StarSCAN, check for Camshaft/Crankshaft Synchronization.
   1. Touch “ECU View”
   2. Touch “PCM”
   3. Touch “Data Display”
   4. Scroll Down to “Synchronization.“ (Crank engine to display reading).
2. Does the StarSCAN display: “Not in Sync” ?
   3. Yes >>> Proceed to Step #3.
   4. No >>> This bulletin does not apply, further diagnosis is required.

3. Remove the Crankshaft Position Sensor and heat shield using the service information available in DealerCONNECT > TechCONNECT > 14 – Fuel System > Fuel Injection Diesel > Sensor-Crankshaft Position > Removal ( 1).
4. Inspect the Crankshaft Position Sensor for the Julian date. The Julian date is located on the sensor opposite side from the hold down flange (just above mounting surface).
   • An example of a Julian date on the sensor reads as follows: 07 T 59
     07 represents the year, 59 represents the day, (59th day of 2007).

5. Is the Julian date 07 T 59 or lower?
   1. Yes >>> proceed to Repair Procedure.
   2. No >>> Reinstall original Crankshaft Position Sensor. This bulletin does not apply, further diagnosis is required.

Fig. 1 CRANKSHAFT POSITION SENSOR

1 – HEAT SHIELD
2 – CRANKSHAFT POSITION SENSOR

 

PARTS REQUIRED:

Qty.	Part No.	Description
1	05175763AB	Sensor, Crankshaft Position

 

REPAIR PROCEDURE:

1. Replace the Crankshaft Position Sensor using (p/n 05175763AB) Installation procedures available in DealerCONNECT > TechCONNECT > 14 – Fuel System > Fuel Injection – Diesel > Sensor-Crankshaft Position > Installation.

 

POLICY:

Reimbursable within the provisions of the warranty.

 

TIME ALLOWANCE:

Labor Operation No:	Description	Amount
08-15-79-94	Sensor, camshaft position – Inspect & Replace (B)	0.3Hrs.

 

FAILURE CODE:

ZZ	Service Action