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Vehicle engine and/or automatic transmission

Code: P0336 - The crankshaft position (CKP) sensor, which monitors engine rotation, is not working properly or is sending signals outside the normal range.

Let me break down what code P0336 actually means for your vehicle. This code pops up when the engine’s computer (the PCM) detects that the signal coming from the crankshaft position sensor isn’t matching what it expects. The crankshaft position sensor is a crucial part - it keeps track of the crankshaft’s position and speed by reading a special toothed wheel (called a reluctor ring) attached to the crankshaft. The PCM uses this info to control when your engine fires the spark plugs and injects fuel. If the signal is off, the engine can’t run right, and that’s when you’ll see this code. In some cars, this sensor also helps with things like variable valve timing and misfire detection. So, it’s a small part with a big job, and when it’s not working right, you’ll know it.

P0336 code Causes Explained

From what I see most often in the shop, P0336 is usually triggered by a handful of common issues. Here’s what tends to cause it:

A faulty crankshaft position sensor - this is the most frequent culprit in my experience.
Problems with the reluctor ring, like if it’s broken, loose, or not lined up right. Sometimes it even gets damaged during other repairs.
Issues with the sensor’s connector - things like corrosion, moisture, or a loose fit can throw off the signal.
Wiring problems in the sensor circuit, such as frayed wires, loose connections, or even electrical interference from nearby components.
Less commonly, a bad camshaft position sensor can also cause this code.
Sometimes the signal between the sensor and the reluctor wheel is disrupted, maybe by debris or a physical obstruction.
And in rare cases, the PCM itself might need a software update or could be malfunctioning.

Most often, the issue is with the sensor or its wiring, but I always check the reluctor ring too, since a damaged one can be easy to overlook. This error can also happen on cars like Ford, Renault, or GM.

P0336 trouble code Symptoms Overview

When P0336 is active, you’ll usually notice a few things right away. The check engine light will come on - that’s your first clue. You might find the engine is hard to start, or it cranks longer than usual before firing up. Sometimes, the engine hesitates when you try to accelerate, or it might even stall out unexpectedly. In some cases, you’ll feel the engine misfire or run rough, and if it gets bad enough, the engine might die and refuse to restart. You could also see a drop in fuel mileage. If you’re experiencing any of these, it’s a good bet the crankshaft position sensor or its circuit is acting up. For reference, these symptoms are associated with the eobd dtc p0336 code.

P0336 engine code Diagnosis Steps

Here’s how I usually go about diagnosing a P0336 code. I always start simple and work my way up:

First, I check for any other codes that might be stored. Sometimes P0336 shows up with other related codes that can help narrow things down.
Next, I do a visual inspection. I look at the crankshaft position sensor and its wiring harness. I’m checking for damaged wires, loose connectors, or signs of corrosion or moisture. Don’t forget to check the connector pins for bent or broken contacts.
Then, I inspect the reluctor ring on the crankshaft. If you can get a look at it (sometimes you’ll need to remove a cover), make sure it’s not cracked, missing teeth, or out of alignment. Even a small nick or bit of debris can cause trouble.
If everything looks good so far, I’ll use a multimeter to check the sensor’s resistance and signal output. The specs for this are in the service manual, so it’s important to compare your readings to what the manufacturer says is normal.
If the sensor and wiring check out, I’ll move on to checking the camshaft position sensor, just in case it’s involved.
Finally, if all else fails, I’ll consider the PCM, but honestly, it’s rare for the computer itself to be the problem.

It’s best to have someone assist you if you’re poking around near moving engine parts, and always disconnect the battery before unplugging sensors. If you’re not comfortable with electrical testing, it’s safer to let a pro handle it. The diagnostic approach is the same for p0336 on most modern vehicles.

Common obd code P0336 Mistakes

I’ve seen a few common missteps when folks try to tackle this code. One big mistake is replacing the crankshaft position sensor right away without checking the wiring or the reluctor ring. Sometimes the problem is just a loose connector or a damaged wire, and swapping the sensor won’t fix it. Another thing people miss is inspecting the reluctor ring - if it’s cracked or has a missing tooth, the new sensor won’t help. Also, I’ve seen folks forget to clear the code after repairs, so the check engine light stays on even though the issue is fixed. Don’t skip the basics - a thorough inspection up front saves a lot of headaches later. These mistakes can occur even with gm dtc p0336 or other similar codes.

How Serious is obd2 code P0336

This is not something you want to ignore. The risks just aren’t worth it. If the crankshaft position sensor isn’t working right, your engine could stall unexpectedly, which is a serious hazard, especially if you’re driving at speed or in traffic. You could also end up with poor fuel economy, rough running, or even a no-start situation that leaves you stranded. In some cases, continued driving with this issue can cause damage to the catalytic converter or other engine components due to misfires. Don’t put this off for later - things can go south quickly if overlooked. Owners of Ford vehicles should also be aware of the dtc p0336 ford code, as it can lead to similar safety concerns.

dtc P0336 Repair Solutions

Here’s what I usually do to fix a P0336 code, based on what the diagnosis turns up:

If the crankshaft position sensor is faulty, I replace it with a new OEM-quality part. Some vehicles require a relearn or programming procedure after replacement, so don’t skip that step if it applies.
If the reluctor ring is damaged, loose, or misaligned, I repair or replace it as needed. This can sometimes mean removing other engine components, so it’s a bit more involved.
For wiring or connector issues, I repair or replace any damaged wires, clean corroded connectors, and make sure everything is tight and secure.
If the camshaft position sensor is found to be at fault, I replace it as well.
In rare cases, if the PCM needs a software update or is faulty, I follow the OEM procedure for reprogramming or replacement.

After any repair, I always clear the code and test drive the vehicle to make sure the issue is resolved.

Conclusion

To sum it up, P0336 means your engine’s computer isn’t getting the right signal from the crankshaft position sensor, which is critical for proper engine operation. Diagnosing it starts with simple checks - wiring, connectors, and the reluctor ring - before moving on to sensor testing or computer issues. This is a high-priority problem because it can lead to stalling, misfires, or even leave you stranded. The most reliable fix is to follow a step-by-step diagnosis and address the root cause, whether that’s the sensor, wiring, reluctor ring, or in rare cases, the PCM. Don’t delay - getting this sorted quickly is the best way to keep your car safe and running right.

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