P0376
Fix within a few daysThe engine computer detects too many pulses from the timing reference signal 'B' sensor, which is usually the crankshaft position sensor.
Code P0376 means your engine's timing signal has too many pulses. Common causes: Crankshaft Position Sensor (60%), Camshaft Position Sensor (20%), wiring (15%). Drivability: Limit driving, fix within a few days. Repair cost: $50-$200 DIY, $150-$500 professional.
Can I Drive With P0376?
Limit driving, fix within a few days
Essential trips under 10 miles, avoid highways and heavy traffic. Be prepared for potential stalling.
Stop driving immediately if: Flashing CEL, engine stalls repeatedly, significant power loss, or engine will not start.
Symptoms of P0376
- 1Engine misfires or runs rough
- 2Engine stalls unexpectedly
- 3Difficulty starting the engine
- 4Engine cranks but does not start
- 5Reduced engine power
Common Causes of P0376
Parts most likely causing this code, ranked by probability
A faulty crankshaft position sensor can send an incorrect number of pulses to the engine computer, triggering this code.
60% of P0376 cases are fixed by replacing this part
If the camshaft position sensor is sending too many pulses, it can confuse the engine computer's timing calculations.
20% of P0376 cases are fixed by replacing this part
Damaged, corroded, or loose wiring and connectors to the crankshaft or camshaft position sensors can cause erratic signals.
15% of P0376 cases are fixed by repairing wiring
Damage to the reluctor wheel (the toothed wheel the sensor reads) can cause it to generate an excessive number of pulses.
5% of P0376 cases are fixed by repairing the reluctor wheel
Check These First (Before Buying Parts)
- Inspect the wiring harness to the crankshaft and camshaft position sensors for any visible damage, cuts, or fraying.
- Check the electrical connectors for corrosion or looseness. Disconnect, inspect, and reconnect them firmly.
- Ensure your battery terminals are clean and tight, as low voltage can sometimes cause sensor signal issues.
How to Diagnose P0376
- 1Check for other related codes, especially P0335, P0336, P0340, P0341.
- 2Visually inspect the crankshaft and camshaft position sensors and their wiring for any signs of damage, fraying, or corrosion.
- 3Ensure the sensor connectors are securely attached and free of debris.
- 4If possible, use an oscilloscope to monitor the sensor signal for erratic patterns or excessive pulses.
- 5Test the sensor's resistance and voltage output with a multimeter, comparing to factory specifications.
- 6If visual inspection and basic tests don't reveal the issue, consider inspecting the reluctor wheel for damage (this often requires removing the sensor and sometimes other components).
P0376 on Popular Vehicles
Ford F-150
2004-2024P0376 on Ford F-150s often points to a failing crankshaft position sensor. Access can be challenging depending on the engine (V6 vs. V8) and location, sometimes requiring removal of other components.
60% fixed by replacing the Crankshaft Position Sensor
Chevrolet Silverado
2007-2024For Chevrolet Silverado trucks, P0376 is typically related to the crankshaft position sensor. Inspect the wiring harness carefully for rodent damage or corrosion, as these are common issues on trucks.
75% fixed by replacing the Crankshaft Position Sensor or repairing wiring
Honda Accord
2003-2024On Honda Accord models, P0376 can be caused by either the crankshaft or camshaft position sensor. Check both sensors and their wiring, as Honda engines rely heavily on accurate timing signals.
80% fixed by replacing either the Crankshaft or Camshaft Position Sensor
Frequently Asked Questions
What does P0376 mean?
P0376 indicates that the engine's computer has detected an excessive number of pulses from the timing reference signal 'B' sensor, which is typically the crankshaft position sensor. This means the sensor is sending too much information about the engine's rotational speed and position.
Can I drive with P0376?
Limit driving, fix within a few days. Driving with P0376 can lead to unexpected engine stalling, misfires, or a no-start condition, which can be dangerous, especially in traffic. Get this checked out quickly.
Will P0376 clear itself?
No, P0376 will not clear itself. The engine computer stores this code because it detects a persistent fault with the timing signal. The code will remain until the underlying issue is diagnosed and repaired, and then it will need to be cleared with a scan tool.
How do I fix P0376 myself?
Start by visually inspecting the crankshaft and camshaft position sensors and their wiring for damage. If you find frayed wires or loose connections, repair them. If the sensors appear faulty after testing with a multimeter, replacing the crankshaft position sensor is a common fix. Ensure you clear the code with a scan tool after the repair.
How much does it cost to fix P0376?
The cost to fix P0376 yourself is typically $50-$200 for a new crankshaft or camshaft position sensor. If you take it to a professional shop, expect to pay $150-$500, which includes parts and labor.
P0376 keeps coming back - why?
If P0376 keeps returning, it means the root cause was not fully addressed. This could be due to a faulty replacement sensor, a persistent wiring issue that wasn't properly repaired, or damage to the reluctor wheel that was overlooked. A thorough diagnostic with an oscilloscope is often needed for recurring issues.
Will P0376 fail emissions/smog test?
Yes, P0376 will cause your vehicle to fail an emissions or smog test. A check engine light illuminated for any powertrain code, including P0376, is an automatic failure in states with emissions inspections.
What's the difference between P0376 and P0335?
P0376 indicates 'too many pulses' from the timing reference signal, suggesting an overactive or faulty sensor. P0335, on the other hand, means 'Crankshaft Position Sensor 'A' Circuit Malfunction,' which typically points to a general circuit issue, no signal, or an intermittent signal from the CKP sensor, rather than an excessive number of pulses.
P0376 on Ford F-150?
P0376 on a Ford F-150, like other vehicles, points to an issue with the crankshaft or camshaft position sensor sending too many pulses. On F-150s, the crankshaft position sensor is a common failure point. Access can vary by engine, but it's usually located near the crankshaft pulley or on the side of the engine block.
Questions to Ask Your Mechanic
Did you check the signal from both the crankshaft and camshaft position sensors with an oscilloscope?
Good answer: Yes, I monitored both sensor signals and saw an erratic or excessive pulse count from the crankshaft position sensor, confirming it's faulty.
What did you find when you inspected the wiring and connectors for the timing sensors?
Good answer: I found some corrosion in the crankshaft position sensor connector, which I cleaned, or I found a frayed wire that I repaired.
Repair Cost Estimate
DIY Repair
Parts only
$50-$200
Shop Repair
Parts + labor
$150-$500
Save $100-$300 by doing it yourself
Difficulty
intermediate
Time
1-3 hours
Intermediate - Requires some mechanical aptitude, basic hand tools, and a multimeter. Access to the sensor can be tricky on some vehicles.
Cost of Waiting
Ignoring P0376 can lead to your engine stalling unexpectedly, which is a safety hazard. Continued driving with an inaccurate timing signal can also cause misfires that send unburned fuel into your catalytic converter, potentially damaging it. A $100 sensor replacement now prevents a $1,200-$2,500 catalytic converter replacement later.
While You're In There...
If you're replacing the crankshaft position sensor, it often makes sense to inspect or replace the camshaft position sensor, as they work together for engine timing and can fail around the same mileage.
Apply dielectric grease to electrical connectors to prevent corrosion and ensure a good connection, especially when working with sensors in exposed areas.
Tools You'll Need
- OBD-II Scan Tool
- Multimeter
- Basic Socket Set
- Wrench Set
- Wire Strippers/Crimpers (if wiring repair needed)
- Flashlight
P0376 points to a specific sensor issue that is very common. Most repairs involve replacing a sensor, which is a straightforward job for an intermediate DIYer, and your engine will run smoothly again.
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Your Next Steps
Step 1: Visually inspect the wiring and connectors for the crankshaft and camshaft position sensors. Look for any damage, corrosion, or loose connections.
Step 2: If the wiring looks good, use a multimeter to test the resistance and voltage output of the crankshaft position sensor. Compare your readings to the specifications in your vehicle's repair manual.
Step 3: If the sensor tests faulty, or if you don't have the tools for advanced testing, the most likely fix is replacing the crankshaft position sensor. You'll likely need a new crankshaft position sensor and possibly a new camshaft position sensor if it's also suspect.