P0336 GMC Code - Crankshaft Position Sensor Performance
Quick Answer
The crankshaft position sensor is an internally magnetic biased digital output integrated circuit sensing device. Common causes include Faulty Crankshaft Position Sensor, Crankshaft Position Sensor harness is open or shorted, Crankshaft Position Sensor circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P0336 GMC indicates Crankshaft Position Sensor Performance.
- Common causes
- Common causes include Faulty Crankshaft Position Sensor, Crankshaft Position Sensor harness is open or shorted, Crankshaft Position Sensor circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P0336 GMC Description
The ECM also has a dedicated replicated crankshaft position sensor signal output circuit that may be used as an input signal to other modules for monitoring engine RPM.
The Diagnostic Trouble Code (DTC) will be set when the Crankshaft Position Sensor signal is not detected by the ECM during the first few seconds of engine cranking.
What are the Possible Causes of the DTC P0336 GMC?
- Faulty Crankshaft Position Sensor
- Crankshaft Position Sensor harness is open or shorted
- Crankshaft Position Sensor circuit poor electrical connection
- Faulty Engine Control Module (ECM)
- Signal plate may be damaged
- Dead or weak battery
How to Fix the DTC P0336 GMC?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0336 GMC code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Information for Specific GMC Models
- P0336 2014 GMC Sierra — Crankshaft Position Sensor Performance
- P0336 2015 GMC Sierra — Crankshaft Position Sensor Performance
- P0336 2016 GMC Sierra — Crankshaft Position Sensor Performance
- P0336 2017 GMC Sierra — Crankshaft Position Sensor Performance
- P0336 2018 GMC Sierra — Crankshaft Position Sensor Performance
Frequently Asked Questions about P0336 GMC Code
1. What does the OBDII code P0336 mean for a GMC vehicle?
P0336 indicates a problem with the crankshaft position sensor circuit, specifically issues with its performance or signal range.
2. What are the common symptoms of code P0336 in a GMC?
Symptoms include engine misfires, difficulty starting, stalling, reduced power, and the Check Engine Light turning on.
3. What causes the P0336 code in a GMC?
Common causes include a faulty crankshaft position sensor, damaged wiring or connectors, a failing reluctor ring, or improper sensor alignment.
4. Can a bad crankshaft position sensor cause a GMC engine not to start?
Yes, a failing crankshaft position sensor can prevent the engine from starting because the sensor provides critical timing signals.
5. How do you diagnose the P0336 code in a GMC?
Diagnosis involves checking the crankshaft position sensor, inspecting its wiring and connectors, testing the reluctor ring, and using a scan tool to analyze live data.
6. Can I drive my GMC with the P0336 code active?
Driving with P0336 is not recommended, as it can lead to stalling or further engine damage due to timing issues.
7. How can the P0336 code be fixed on a GMC vehicle?
Repairs may include replacing the crankshaft position sensor, repairing damaged wiring, realigning the sensor, or inspecting and replacing the reluctor ring.
8. How much does it cost to fix the P0336 code on a GMC?
Repair costs vary but typically range from $100 to $300, depending on whether the sensor or related components need replacement.
9. Can a weak battery cause the P0336 code in a GMC?
A weak battery is unlikely to cause this code directly, but low voltage can impact sensor performance and trigger related codes.
10. Does the P0336 code affect fuel efficiency in a GMC?
Yes, P0336 can impact fuel efficiency due to improper engine timing and performance issues.
Discuss the causes and fixes for P0336 GMC OBDII Code
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