Description
Comparison points and tradeoffs
When comparing Engine Crank Crankshaft Position Sensor Compatible with Jeep Cherokee L6 4.0L 1997 1998 1999 2000 2001 Replaces 56027866Ab with other Crankshaft Position options, use this source-backed detail as the primary discriminator: Check engine light on with a relearn related code stored, such as a” P1336 Crankshaft Position Variation Not Learned”.
Use this second fact to evaluate the tradeoff: Referenced part number: 56027866AB. A third point to compare across alternatives is: After a thorough diagnosis to ensure that a camshaft or crankshaft position sensor are in fact the direct cause of the drivability or no-start condition, refer to the applicable service manual to aid in replacement of the sensor. Follow the correct installation process so that no damage will occur to any component during installation.
Alternative-selection boundary
Choose an alternative when its stated identifiers, application, package, or specifications better match the requirement; no unverified competitor claim is introduced here.
Complete source-backed product details
| Brand | Dcmr |
|---|---|
| Item dimensions L x W x H | 5.91 x 3.15 x 1.18 inches |
| Material | Copper |
| Item Weight | 2.72 ounces |
| Style | automotive-engine-crankshaft-position-sensors |
| Mounting Type | Flange Mount |
| Output Type | Push-Pull |
| Specific Uses For Product | automotive |
| Manufacturer | Dcmr |
| Model | automotive-engine-crankshaft-position-sensors |
| Product Dimensions | 5.91 x 3.15 x 1.18 inches |
| Country of Origin | China |
| Item model number | 2534-1082-WD |
| Exterior | Smooth |
| Manufacturer Part Number | 2534-1082-WD |
| OEM Part Number | 56027866AB, 56027866AC, 56027866AD 56027866AE SU3224, 5S1806, PC308 |
Product Description
All vehicle applications that use camshaft and/or crankshaft position sensors
Brand information
- Dcmr Provider of Camshaft and Crankshaft Sensor products to the worldwide OEM market and aftermarket.
- Dcmr offers complete Camshaft and Crankshaft Sensor coverage for Asian, Domestic and European vehicles,
- Top brand awareness and unsurpassed quality.
SENSORS: HOW A VEHICLE THINKS
Over the span of a single mile of high-speed operation, a modern passenger vehicle will make millions of “decisions” affecting engine performance and emissions. These decisions are based on data provided by dozens of sensors tied into the vehicle’s onboard computer systems, which control everything from the amount of the air/fuel mix being fed into the combustion chamber to the deployment of the anti-lock braking system (ABS).
Sensors play integral roles not only in ensuring satisfactory fuel efficiency and emissions, but also protecting the safety of the driver and passengers. And yet many of these sensors operate in hostile conditions involving extreme temperatures, vibration and nearly constant exposure to environmental contaminants.
Selecting a replacement sensor demands attention to quality and performance. The replacement must fit, perform and last at least as well as the original. In some cases, a leading manufacturer such as Dcmr offers a “better-than-original equipment” alternative that provides OE fit and form combined with a variety of enhancements that address complaints and failures associated with the original component.
Dcmr is one of the world’s leading suppliers of replacement sensors and other vehicle electronics for virtually all vehicle nameplates. Unlike many other manufacturers, however, Dcmr doesn’t strive simply to mirror OE fit, form and function; the company’s technical services and engineering teams work hand-in-hand to identify problematic applications that demand better-than-original equipment technologies.
[Replaces OEM Part Number:]
- 56027866AB, 56027866AC, 56027866AD, 56027866AE, SU3224
Buyers Guide (Reference Year/Make/Model search for proper fitment):
- 01-97 Jeep Cherokee L6-4.0L
- Camshaft and crankshaft position sensor replacement is often necessary on many cars due to the common results of heat and vibration. However, if the proper relearn process is not performed to account for mechanical wear and manufacturing tolerances when replaced, you may face unnecessary comebacks and complaints.
You may encounter a recurring “Check Engine” light soon after the replacement of a cam/crank sensor. This may occur even after the performance issue is fixed. Without the proper relearn performed the vehicle may show a few different symptoms. These can include:
- Check engine light on with a relearn related code stored, such as a” P1336 Crankshaft Position Variation Not Learned”
- The inability of the PCM to accurately determine if an engine is misfiring
- The inability of the PCM to accurately pinpoint a single cylinder as a problem
- A misfire code may be set for the wrong cylinder and lead the technician down the wrong path
In rare cases the engine may misfire or go into “reduced power” or “limp mode” especially under high RPM/load situations Additionally, omission of the relearn process could cause the vehicle to be unable to pass an emissions test due to incomplete or failed misfire monitor.
Industry Experience
Camshaft and crankshaft position sensors identify the exact position of the camshaft and crankshaft during rotation to the powertrain control module (PCM). A camshaft or crankshaft sensor problem can cause many different drivability issues from a misfire to an engine no-start. The mechanical camshaft to crankshaft timing is maintained by a timing chain or belt to the cogs of the drive gears. If the mechanical cam to crank timing is misaligned for any reason a trouble code will set causing possible confusion during the diagnostic process. The mechanical timing could be off, yet the engine will run. Before replacing a sensor be certain the mechanical condition of the motor is in check.
World Class Technology
Camshaft and crankshaft sensor signals must be synchronized to prevent a trouble code condition. Many vehicle applications require the sensors to be synchronized or relearned whenever a sensor is replaced, or the timing chain or belt are serviced. The service manual for your specific vehicle will provide information if this process needs to be performed. In some cases, this process may require the use of a full function scan tool as most code readers do not have the capability to perform this task.
Engineering Teams
If the relearn procedure is not performed when needed, the PCM does not see the two sensors in time together and will set a diagnostic trouble code indicating the fault. Not performing this procedure may also create drivability concerns such as the computer detecting misfires that are not really occurring. This trouble code condition does not mean a part has failed or installed incorrectly, or that the engine is out of time, the trouble code is simply set to acknowledge a complete repair was not made and the code set criteria will not be eliminated until the relearn or synchronization process is completed
Production Accuracy
After a thorough diagnosis to ensure that a camshaft or crankshaft position sensor are in fact the direct cause of the drivability or no-start condition, refer to the applicable service manual to aid in replacement of the sensor. Follow the correct installation process so that no damage will occur to any component during installation.
For addition support contact the Dcmr technical services team for assistance.
Source product highlights
About this item
- [Replaces Part Number:] PC308 5S1806 #56027866AB 56027866AC 56027866AD 56027866AE SU3224 Please Check the OEM Part Number and Make Sure Your Part Number Matches this Part Number Before Buying!
- Buyers Guide (Reference Year/Make/Model search for proper fitment): Compatible with JEEP-CHEROKEE (01-97)
- 100% environmental, endurance and end-of-line testing for Timing, Pulse Width and Signal Amplitude ensures consistent product reliability.Advanced circuitry protects the system from stray electro-magnetic fields and power spikes.
- Integrated A/D converter and digital signal processing with a dynamically adaptive switch point improves accuracy and operation.Custom magnetic circuit programming calibrates the sensor during performance testing, which improves timing accuracy between target wheel and sensor output.
- Located in the Engine Oil Pump system, the Crank Position Sensor is a critical Engine-Fuel part. It plays a crucial role by monitoring the speed and position of the engine crankshaft. This information is sent to the engine control unit (ECU), which adjusts the fuel injection and ignition timing accordingly. If the Crank Position Sensor becomes aged, broken, or clogged, it could result in poor engine performance, reduced fuel efficiency, or even lead to engine failure.
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