How do i replace crankshaft sensor ? - 1995 Buick Regal

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Crankshaft position sensor location - Colorado Fans

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Dec 16, 2009 - Hey everyone.. do ya know where the crankshaft position sensor is located on our engines? It would be a big help if someone could point me ...

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Only has one crankshaft position sensor ,an cam sensors . To change the crank sensor u would have to pull the starter ,located above starter .
Camshaft Position Sensor Replacement - Intake Camshaft Position Sensor Replacement - Exhaust
After a crank sensor replacement a
Crankshaft Position System Variation Learn has to be done !
Important: The crankshaft position (CKP) system variation learn procedure is required when the following service procedures have been performed, regardless of whether DTC P0315 is set:
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Engine replacement

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Engine control module (ECM) replacement

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Crankshaft damper replacement

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Crankshaft replacement

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CKP sensor replacement

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Any engine repairs which disturb the crankshaft to CKP sensor relationship

Important: The scan tool monitors certain component signals to determine if all the conditions are met to continue with the CKP system variation learn procedure. The scan tool only displays the condition that inhibits the procedure. The scan tool monitors the following components:
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CKP sensor activity--If there is a CKP sensor condition, refer to the applicable DTC that set.

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Camshaft position (CMP) signal activity--If there is a CMP signal condition, refer to the applicable DTC that set.

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Engine coolant temperature (ECT)--If the engine coolant temperature is not warm enough, idle the engine until the engine coolant temperature reaches the correct temperature.

Which one ? your vehicle has two !
Crankshaft Position (CKP) Sensor (7X)
Lower rear of the engine block, below the exhaust manifold
Crankshaft Position (CKP) Sensor (24X)
Right side of engine, at the end of the crankshaft, behind the harmonic balancer
24x replacement .
Turn OFF the ignition. Remove the serpentine drive belt from crankshaft pulley. Refer to Drive Belt Replacement in Engine Mechanical. Raise the vehicle on hoist. Refer to Lifting and Jacking the Vehicle in general information. Remove the crankshaft harmonic balancer. Refer to Crankshaft Balancer Replacement in Engine Mechanical. Note the routing of sensor harness before removal. Remove the harness retaining clip with bolt (1). Disconnect the sensor electrical connector. Remove the sensor bolts (2). Remove the sensor.
After replacement of this one you have to do relearn
24x 24

Which one ? Your vehicle has two .
24X Crankshaft Position (CKP) Sensor
Front of engine behind the harmonic balancer !
7X Crankshaft Position (CKP) Sensor
Right front side of engine in the engine block
Crankshaft Position Sensor Replacement (24X CKP Sensor)
Tools Required J 29113 Crankshaft Pulley Hub Puller

For testing crank sensor,check the help link below:---How to test Crankshaft Position Sensor? http://fordrepairhelp.blogspot.in/2012/03/how-to-test-ford-focus-crankshaft.html
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• How to test Crankshaft Position CKP Sensor?

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Crankshaft Position Sensor Operation?

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Replace Camshaft position sensor and Crankshaft Position Sensor? http://technoanswers.blogspot.in/2012/06/2005-dodge-durango-replace-camshaft.html
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GMC Crankshaft Position (CKP) Sensor Replacing? http://schematicsdiagram.blogspot.com/2011/12/gmc-crankshaft-position-ckp-sensor.html

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These details will help.
Thanks.

P0315 - Crankshaft Position System Variation Not Learned

Possible causes- Crankshaft Position (CKP) sensor harness is open or shorted
- Crankshaft Position (CKP) sensor circuit poor electrical connection
- Faulty Crankshaft Position (CKP)
- Damaged crankshaft pulse wheel teeth. Tech notes Visual inspection of the Crankshaft Position (CKP) sensor and crankshaft pulse wheel teeth for damage. If crankshaft teethes are OK, replaced the Crankshaft Position sensor

crankshaft position sensor location for 3.3 V6 engine is mounted at the rear of the engine on transmission bellhousing, the 3.5 V6 engine crankshaft sensor located at front of the engine on the aluminum oil pan section below crankshaft pulley.replace the crankshaft position sensor remove heat shield disconnect the electrical connector the remove sensor retaining bolt then remove crankshaft sensor.after replacing crankshaft sensor you need to erase code if check light come back on.

REMOVAL & INSTALLATION

1. Disconnect the negative battery cable.
2. Remove the serpentine drive belt from the crankshaft pulley.
3. Raise and safely support the vehicle.
4. Remove the right front wheel and tire assembly and the right inner fender access cover/splash shield.
5. Using a 28mm socket, remove the crankshaft harmonic balancer retaining bolt.
6. Remove the crankshaft balancer, using a puller if necessary.
7. For 1992-99 vehicles, remove the CKP sensor shield. Fig. 1: If so equipped, remove the crankshaft position sensor shield
   
   
8. Unplug the sensor electrical connector.
9. For 1987-91 vehicles, perform the following:
   1. Remove the sensor and pedestal from the block face.
   2. Remove the sensor from the pedestal.
10. For 1992-99 vehicles, remove the sensor from the block face. To install:
    1. For 1987-91 vehicles, perform the following:
    2. Loosely install the crankshaft sensor on the pedestal.
    3. Position the sensor, with the pedestal attached, on crankshaft sensor installation tool J 37089 or equivalent.
    4. Install the bolt to hold the pedestal to the block face, then tighten to 14-28 ft. lbs. (20-40 Nm). Fig. 2: Position the crankshaft sensor tool on the crankshaft
       Fig. 3: Insert the crankshaft sensor tool into the harmonic balancer
       
       
    5. Tighten the pedestal pinch bolt to 30-35 inch lbs. (3-4 Nm).
    6. Remove the special tool.
    7. Place the crankshaft sensor tool on the crankshaft balancer and turn. If any vane on the harmonic balancer touches the tool, replace the balancer.
11. For 1992-99 vehicles, install the CKP sensor on the block.
    1. Install the retaining bolts and tighten to 14-28 ft. lbs. (20-40 Nm).
    2. Install the crankshaft position sensor shield.
    3. Attach the sensor electrical connector.
12. Install the balancer on the crankshaft.
13. Tighten the crankshaft bolt to 200-239 ft. lbs. (270-325 Nm) for 1987-91 vehicles. For 1992-99 vehicles, tighten to 110 ft. lbs. (150 Nm), plus an additional 76°rotation.
14. Install the inner fender shield and the right tire and wheel assembly.
15. Carefully lower the vehicle.
16. Install the serpentine belt.
17. Connect the negative battery cable.

TESTING

1. Disconnect the crankshaft position sensor wire harness plug.
2. Connect an ohmmeter to the sensor terminals A and B and measure the resistance. Fig. 1: Crankshaft position sensor connector terminals. Measure the resistance across the A and B terminals
   Fig. 2: Measure the air gap between the crankshaft position sensor and the crankshaft pulley
   
   
3. The reading should be 520–580 ohms at 68°F (20°C).
4. If not as specified, replace the sensor.
5. Measure the air gap of the sensor between the crankshaft pulley and the sensor.
6. Proper air gap should be 0.040–0.080 in. (1–2 mm).
7. If not as specified, inspect the crankshaft pulley and/or replace the sensor.

In the kit there are two sensor that look identical. The one for the crankshaft has a white paint mark on it near the bolt hole. Make sure that it is in the right location.