When the crankshaft position (CKP) sensor stops working on her 5.2L V8 fitted Dakota or Durango, it"ll reason a ‘no start’ condition.
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In this indict I"ll explain how to check the crankshaft place sensor on her 1997, 1998, 1999 5.2L V8 dodge Dakota and also 1998, 1999 5.2L V8 dodge Durango.
The test deserve to be done with a straightforward multimeter and since this is an on-car test, you don"t have to remove it from her Dakota (Durango) to test it.
WIRING DIAGRAM: girlfriend can uncover the ignition device wiring diagram here: Ignition device Circuit chart (1997-1999 5.2L evade Dakota and also Durango).
Symptoms that A poor Crankshaft position Sensor
When the crankshaft position sensor fails, it"ll fail in among two ways. It"ll fail completely and the engine won"t start.
Or it"ll failure intermittently and cause the engine to run yet not start or stall intermittently.
The most common form of failure of the CKP sensor will cause a no start condition. And this kind of complete failure is the emphasis of this tutorial.
Although the fuel injection computer is designed to collection a trouble password P0320: No Crank reference Signal at PCM as soon as the crankshaft place sensor fails, the doesn"t constantly do so.
Circuit descriptions Of The Crankshaft place Sensor
The crank sensor is a 3-wire Hall result sensor. This means that one cable feeds it through power, one cable feeds it Ground, and also the other takes the CKP signal come the computer.
All 3 wires affix directly to your Dodge Dakota or Durango"s fuel injection computer.
The connector top top the sensor itself has male spade terminals. The connector top top the engine wiring harness has actually female terminals.
Below is a quick description of the 3 wires that attach to the crankshaft position sensor:
|1||Violet v white stripe (VIO/WHT)||Power (5 Volts DC)|
|2||Black v light blue strip (BLK/LT BLU)||Sensor Ground|
|3||Gray with black stripe (GRY/BLK)||CKP Signal|
WIRING DIAGRAM: you can discover the ignition mechanism wiring chart here: Ignition mechanism Circuit diagram (1997-1999 5.2L evade Dakota and Durango).
TEST 1: trial and error The Crankshaft position Signal
When the crankshaft position sensor fails, it"ll stay stuck producing a addressed voltage rather of producing an ON/OFF signal.
To it is in a bit much more specific: The CKP sensor should create an ON/OFF signal the 5 and 0 Volts DC as the engine turns.
You and I can easily verify this ON/OFF signal through a multimeter associated to the CKP signal cable of the crankshaft position sensor.
Since we"re utilizing a multimeter, we need to manually revolve the engine and also NOT usage the starter motor! making use of the starter engine will revolve the engine too fast and also we won"t be able to see the ON/OFF pulses.
IMPORTANT: The crankshaft position sensor should be connected to its engine harness connector for this test to work. You"ll require to affix your multimeter test bring about a back probe or a cable piercing probe to review the crank signal. You deserve to see an example of a wire piercing probe here: cable Piercing Probe evaluation (Power Probe PWPPPPP01).
NOTE: Don"t have actually a multimeter or need to upgrade yours? examine out my recommendation: Buying A Digital Multimeter because that Automotive Diagnostic Testing.
These space the check steps:
Place your multimeter in Volts DC mode and also re-connect the distributor come its electrical connector.
Disconnect the ignition coil from its electrical connector. This is an important safety precaution!
With the red multimeter test lead, probe the gray with black strip (GRY/BLK) wire of the crank sensor connector.
Connect the black multimeter test lead straight on the battery negative (-) terminal.
Turn the ignition vital to the top top position and turn the engine by hand utilizing the 1/2" ratchet wrench and appropriate socket ~ above the crankshaft pulley. For the accuracy that the test, carry out not usage the starter motor.
Your multimeter will review an ON/OFF voltage the 5 Volts and 0 Volts (if the crankshaft position sensor is functioning correctly).ON is when the multimeter reads 4-5 Volts DC and OFF is when it reads 0 Volts DC.
Let"s research your CKP signal check result:
CASE 1: The multimeter review the suggested ON/OFF DC voltage. This is the correct and also expected test an outcome and speak you the the crankshaft position sensor is functioning correctly.
Since the crankshaft position sensor IS not defective, something rather is leading to your Dakota or Durango to not start.
See more: 22Hp Briggs And Stratton 22 Hp Intek Valve Adjustment, Small Engine Valve Maintenance & Repair
CASE 2: The multimeter go NOT check out the shown ON/OFF DC voltage. This test an outcome tells you the the crank sensor is defective. Before you replace it, make certain it"s getting power and also Ground. For this test walk to: test 2: Making sure The Crank Sensor has Power and Ground.