P0336
High SeverityCrankshaft Position Sensor A Performance
Engine System
What Does P0336 Mean?
The crank sensor signal is irregular or intermittent. The ECM can read the sensor but the signal quality is poor.
Common Fix
Replace crankshaft position sensor
Estimated Cost (DIY)
$15 - $50
Symptoms
- ⚠️Intermittent stalling
- ⚠️Rough running
- ⚠️Occasional no-start
- ⚠️Tachometer fluctuates
Related Symptoms
Common Causes
How to Diagnose P0336
- 1Inspect sensor and connector
- 2Check reluctor ring for missing teeth or debris
- 3Verify sensor air gap
- 4Replace sensor if signal erratic
OEM Diagnostic Flowchart
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Read live data and freeze frame for P0336 to pinpoint the cause before buying parts.
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Related Resources
Repair guides, symptom pages, and wiring diagrams related to P0336.
OEM Manual Evidence
Browse →A L L Diagnostic Trouble Codes ( DTC ) — 2013 GMC Truck Yukon XL Denali AWD V8-6.2L Service Manual | Operation CHARM Operation CHARM : Car...
A L L Diagnostic Trouble Codes ( DTC ) — 2013 GMC Truck Yukon XL Denali 2WD V8-6.2L Service Manual | Operation CHARM Operation CHARM : Car...
A L L Diagnostic Trouble Codes ( DTC ) — 2013 GMC Truck Yukon XL 4WD V8-6.0L Service Manual | Operation CHARM Operation CHARM : Car repair...
A L L Diagnostic Trouble Codes ( DTC ) — 2013 GMC Truck Yukon XL 4WD V8-5.3L Service Manual | Operation CHARM Operation CHARM : Car repair...
Related Symptoms
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Exact Repair Workflows
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Open the exact repair flow most commonly associated with P0336 on this vehicle.
Open the exact repair flow most commonly associated with P0336 on this vehicle.
Related Codes
The ECM is not receiving a proper signal from the crankshaft position sensor. This sensor is critical for engine timing and fuel injection.
The crankshaft and intake camshaft positions are not synchronized on bank 1. This indicates a timing problem that can cause rough running or no-start conditions.
No signal from the camshaft position sensor on bank 1. Needed for sequential fuel injection and ignition timing.
Frequently Asked Questions
- What is a reluctor ring?
- The reluctor ring (tone wheel) is a toothed ring on the crankshaft. The sensor reads the teeth passing by to determine crank position and speed.
- Can metal debris cause P0336?
- Yes — magnetic sensors attract metal shavings from normal engine wear. Cleaning the sensor tip sometimes resolves P0336.
Related Repair Guides
If your vehicle has triggered P0336, these DIY repair guides may help: