P0368 Code: That Long Crank on Chrysler V6/V8 Engines, Fixed
P0368 Code: That Long Crank on Chrysler V6/V8 Engines, Fixed
A P0368 code and an engine that cranks for five seconds before catching feels serious — but in most cases it isn't. From our diagnostic experience, the majority of P0368 codes are fixed with a $30 sensor or simply cleaning an oil-soaked connector. This guide shows you exactly how to find the real cause before you pay for unnecessary engine work.
P0368 means the "B" camshaft position sensor on Bank 1 — usually the exhaust camshaft sensor — is reading abnormally high voltage (above 4.5V). The PCM can't trust the timing data, so it falls back to crankshaft-only timing, which causes the hallmark long crank and rough idle. The fixes, in order of probability: (1) clean an oil-contaminated sensor connector ($5), (2) replace the camshaft position sensor with an OEM part ($30–$80), (3) fix a leaking valve cover gasket that's soaking the harness ($150–$400). Engine internal work is almost never the answer.
What Does P0368 Actually Mean?
Your engine has two critical position sensors: the crankshaft position sensor tells the PCM where the pistons are, and the camshaft position sensor(s) tell the PCM where the valves are. The PCM cross-references both to decide which cylinder is on the compression stroke and fire the correct injector and spark plug at the right microsecond.
On a dual-overhead-cam (DOHC) engine, "Sensor A" is typically the intake camshaft sensor and "Sensor B" is the exhaust camshaft sensor. "Bank 1" is the engine bank that contains cylinder #1. So P0368 = the exhaust camshaft position sensor on Bank 1 is sending a voltage signal that's too high — above the 0.5–4.5V working range, usually railed near the 5V supply.
What Are the Symptoms of P0368?
Unlike emissions-monitor codes, P0368 usually produces immediate, recognizable drivability symptoms because the engine has lost half of its timing reference. The most common P0368 symptoms include:
Is P0368 Code Serious?
It's moderately serious — annoying rather than dangerous. Unlike codes that cause stalling or limp mode, P0368 lets the vehicle keep running, but the long cranks and rough idle wear out the starter, battery, and ignition components over time. Four concrete consequences of ignoring it:
The good news: P0368 is rarely a safety hazard, the vehicle remains drivable, and the typical fix is among the cheapest in the OBD-II code family — a $30 sensor and a 30-minute swap. The right response is to diagnose within 1–2 weeks, not panic-replace expensive parts.
What Causes a P0368 Code? (Ranked by Frequency)
Check causes in this order — the cheapest and most common first. The majority of P0368 cases are resolved between causes #1 and #3 without ever touching the engine's internals.
Oil-Contaminated Sensor Connector
This is the single most common cause on Chrysler, Jeep, Dodge, and BMW engines. A leaking valve cover gasket sends oil down the harness and saturates the camshaft sensor connector, shorting the signal wire to the 5V supply. Cleaning the connector and addressing the leak fixes it for free.
Fix: $5 contact cleaner · 30 minutesFailed Camshaft Position Sensor (Internal)
The sensor's internal Hall-effect circuit fails open over time, leaving the signal railed at 5V. This is the second most common cause and the most universally applicable. One 10mm bolt, an O-ring, and 15–30 minutes of labor — easily DIY-able on most vehicles.
Fix: $30–$80 part · 30 minutesDamaged or Corroded Wiring Harness
A broken ground wire is a classic "Circuit High" trigger because the signal floats up to 5V with no path to ground. Chafed insulation, rodent damage, or corroded pins inside the connector are also common — verify continuity with a multimeter before replacing the sensor a second time.
Fix: $20–$1505V Reference Voltage / Alternator Problems
An over-voltage alternator (above 15V system voltage) can push excess voltage into the sensor's 5V reference circuit, triggering Circuit High codes across multiple sensors at once. If P0368 appears with other Circuit High codes, suspect the charging system first.
Fix: $0 test – $250 alternatorFaulty Reluctor / Tone Ring
Less common: the toothed wheel on the camshaft that the sensor reads can crack, lose a tooth, or shift on its mount. This usually causes range/performance codes (P0365 family) before circuit-high codes, but it's worth a visual inspection if everything else tests good.
Fix: $100–$400Faulty PCM (Rare)
The PCM's input driver circuit for the camshaft sensor can fail, locking the input high. Only consider this after the sensor, wiring, and reference voltage all test good. Many cases close with a free dealer reflash before any module replacement is needed.
Fix: $0 reflash – $700 PCMWhat You'll Need
Tools
- OBD2 scanner (live data + freeze frame) iCarzone UR800 ›
- Digital multimeter
- 10mm socket + extension
- Battery / alternator tester
- Flashlight + inspection mirror
- Safety glasses + gloves
Possible Parts & Supplies
- Electrical contact cleaner $5–$10
- OEM camshaft position sensor $30–$80
- Sensor O-ring (often included) $2–$5
- Valve cover gasket set $25–$120
- Wiring repair kit (pigtail + solder) $15–$40
- Alternator (if charging fault) $120–$300
iCarzone UR800 Bidirectional OBD2 Scanner
Displays live camshaft sensor voltage, freeze frame capture, and bidirectional reset functions — the exact data you need to tell an oil-soaked connector from a failed sensor before buying parts.
How Do You Fix a P0368 Code?
Follow these steps in order. The majority of P0368 cases are resolved by Step 2 — a connector clean — or Step 4 — a sensor replacement — without further work. Use the flowchart below as a quick map of the decision tree.
P0368 Diagnostic Flowchart — Decision Tree
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1
Scan for All Codes and Capture Freeze Frame
Plug in your scanner and record every stored code. P0368 often appears with related codes like P0365 (sensor B circuit), P0366 (low voltage), or P0016/P0017 (camshaft-crankshaft correlation). Capture freeze frame data — RPM, engine load, coolant temperature — that shows the conditions when the fault set, especially whether it triggers on cold start or after warm-up.
If P0016/P0017 (timing correlation) also appears, the fault may be timing-related rather than purely electrical. Fix any correlation codes first, then re-evaluate P0368. -
2
Inspect the Sensor Connector for Oil Contamination
On many engines — especially Chrysler 3.5L/3.7L/4.7L V6/V8 and BMW inline-sixes — oil from a leaking valve cover gasket migrates down the harness and saturates the camshaft sensor connector. Unplug the Bank 1 exhaust camshaft sensor, inspect the pins for oil residue, green corrosion, or pushed-back contacts. Spray with electrical contact cleaner and let dry. If the connector is oil-soaked, fix the source leak first — otherwise the new sensor will fail the same way.
A flashlight angled into the connector cavity quickly reveals oil sheen. Even a thin film is enough to short the signal wire to 5V. -
3
Measure the Sensor Signal Voltage
With the engine idling, use a multimeter (or your scanner's live data) to read the camshaft sensor's signal voltage. A healthy sensor produces a square-wave signal swinging between roughly 0V and 5V — the average reading hovers between 0.5V and 4.5V depending on engine speed. A constant reading above 4.5V confirms the high-circuit condition that triggers P0368. If the signal is railed high, either the sensor itself has failed open or its ground wire is broken.
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4
Replace the Camshaft Position Sensor
If the connector is clean but the signal voltage is railed high, replace the Bank 1 exhaust camshaft position sensor. It's typically one 10mm bolt and an O-ring — most installations take 15–30 minutes. Use an OEM part or quality-brand sensor (Standard Motor Products, Delphi, Bosch). Lightly lubricate the new O-ring with engine oil before pressing the sensor home. Clear the code and verify the long crank is gone.
Important: Cheap aftermarket sensors are the #1 reason a "fixed" P0368 returns. Spend the extra $20 for an OEM or top-tier brand part — it pays for itself by avoiding a re-do. -
5
Test Wiring Continuity and 5V Reference Voltage
If a new sensor doesn't clear the code, the fault is in the wiring or the PCM's reference voltage. Disconnect both the sensor and the PCM connector, then check continuity of each of the three sensor wires (5V reference, signal, ground). Also verify the 5V reference at the sensor connector with the key on and engine off — a missing or over-voltage reference can trigger P0368 across multiple sensors at once. If reference voltage is over 5.5V, test the alternator for over-voltage charging.
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6
Clear the Code and Verify the Repair
After any repair, clear all codes and complete several start-and-drive cycles. P0368 typically resets within one cold-start cycle if the underlying problem isn't fixed. Watch live data to confirm the sensor signal stays within 0.5–4.5V across the full RPM range. If the code stays clear after 50+ miles of mixed driving and the long crank is gone, the repair is confirmed.
Some emissions-test states require the OBD-II readiness monitors to show "Ready" before testing. Drive a full warm-up cycle plus highway segment before heading to the inspection station.
How Much Does P0368 Cost to Fix?
Costs depend entirely on the root cause. P0368 is one of the cheaper OBD-II codes to resolve when caught early — most fixes are well under $100. The table below reflects realistic 2026 pricing across independent shops and DIY parts suppliers.
| Repair | DIY Cost | Shop Cost | You Save | Type |
|---|---|---|---|---|
| Connector clean (contact cleaner) | $5–$10 | $60–$120 | Up to $110 | Try First |
| Camshaft position sensor (OEM) | $30–$80 | $150–$300 | Up to $220 | DIY Friendly |
| Wiring repair / connector pigtail | $15–$40 | $80–$250 | Up to $210 | DIY Moderate |
| Valve cover gasket replacement | $25–$120 | $150–$400 | Up to $280 | DIY Moderate |
| Alternator (if over-voltage charging) | $120–$300 | $250–$600 | Up to $300 | DIY Moderate |
| PCM reflash (TSB) | N/A (dealer only) | $50–$150 | — | Shop Required |
| PCM replacement + programming | $400–$700 | $700–$1,200 | Up to $500 | Shop Advised |
Per the EPA's emissions standards ↗ EPA Vehicle Emissions I/M Program, a vehicle with an active P0368 code will fail an OBD-II emissions test because the powertrain monitor is incomplete. If your vehicle is under the federal emissions warranty (8 years / 80,000 miles), the camshaft sensor and PCM may be covered — check with your dealer before paying out of pocket.
Which Vehicles Are Most Prone to P0368?
These platforms have well-documented P0368 patterns due to sensor design, valve cover gasket leak rates, or harness routing that exposes the connector to oil and heat. We've written dedicated deep-dives for the two highest-volume platforms — Chrysler/Jeep V6/V8 and BMW inline-sixes — below the table.
| Make | Model | Years | Primary Cause & Notes | Risk |
|---|---|---|---|---|
| Chrysler / Dodge / Jeep | 300, Pacifica, Liberty, Grand Cherokee, Ram 1500, Dakota (3.5L / 3.7L / 4.7L) | 2002–2012 | Valve cover gasket leaks soak the camshaft sensor connector — the #1 cause across this engine family. See full Chrysler V6/V8 deep-dive below. | High |
| BMW | 328i, 528i, X3, X5 (N51 / N52 inline-six) | 2006–2013 | Failed exhaust camshaft sensor plus the well-known BMW valve cover gasket leak. OEM Bosch is the recommended replacement. See full BMW deep-dive below. | High |
| Hyundai / Kia | Sonata, Optima, Sorento (2.4L / 3.5L) | 2006–2015 | Exhaust camshaft sensor failures are common. Hyundai issued multiple campaign updates — check NHTSA for any open recalls before paying out of pocket. | Medium |
| Ford | Mustang, Edge, Explorer, Fusion (3.5L / 3.7L Cyclone V6) | 2008–2017 | Sensor failures plus harness chafing where the wire routes near the exhaust manifold. Replace the OEM sensor and inspect the harness path. | Medium |
| Nissan / Infiniti | Altima, Maxima, G35/G37 (VQ35DE / VQ35HR) | 2005–2014 | Camshaft sensor failures plus valve cover gasket leaks on the higher-mileage VQ engines. Sensor swap is straightforward; fix the leak source. | Medium |
P0368 on Chrysler / Jeep / Dodge V6 & V8 (3.5L, 3.7L, 4.7L — 2002–2012)
The 3.5L V6 (300, Pacifica, Sebring), 3.7L SOHC V6 (Liberty, Grand Cherokee, Dakota, Ram 1500), and 4.7L V8 (Grand Cherokee, Dakota, Ram 1500) share a common P0368 pattern that techs call "the Chrysler camshaft cocktail":
1. Valve cover gasket leaks (root cause). The valve covers on these engines develop weeping leaks around 80,000–120,000 miles. Oil migrates down the harness via capillary action and pools in the camshaft sensor connector.
2. Oil intrusion into the connector. Once the connector cavity has even a thin film of oil, the signal wire shorts to the 5V reference — instant Circuit High code. Many owners replace the sensor twice before realizing the leak is the underlying cause.
3. Sensor itself fails secondarily. Sustained oil exposure damages the sensor's Hall element. So by the time you diagnose the code, both the connector cleanup and a new sensor are usually needed.
P0368 on BMW N51 / N52 Inline-Six (328i, 528i, X3, X5 — 2006–2013)
The N51 (PZEV) and N52 magnesium-block inline-sixes power a large swath of mid-2000s to early-2010s BMWs. P0368 on these engines almost always points to two culprits — and an OEM Bosch part is the only reliable fix:
1. Exhaust camshaft position sensor failure. The N52's exhaust camshaft sensor sits in a hot location on the back of the cylinder head and fails internally over time. Symptoms are textbook P0368: long crank when the engine is fully warm.
2. Valve cover gasket leak (very common on N52). The plastic valve cover and its gasket are a known leak point. Oil contaminates the camshaft sensor connector, repeating the Chrysler pattern. BMW dealers will often quote a full valve cover replacement; many independents do just the gasket.
3. Genuine Bosch sensors only. Aftermarket camshaft sensors fail in BMW applications at high rates — owners commonly report a new code within months. Pay the OEM premium; it pays back in not doing the job twice.
Should You DIY or Call a Mechanic?
- ✓ Have a scanner with live data and freeze frame
- ✓ Can use a multimeter to read voltage
- ✓ Are comfortable working under the hood
- ✓ Have basic hand tools (10mm socket, etc.)
- ✓ Want to save $100–$200 in shop labor
- → Vehicle is under powertrain or emissions warranty
- → The sensor is buried (rare V-engine, hard access)
- → Code returned after a sensor + cleaner fix
- → Multiple sensors show Circuit High (charging issue)
- → You don't have a multimeter or live-data scanner
Frequently Asked Questions
Can I drive with a P0368 code?
Will replacing the camshaft sensor fix P0368?
How much does it cost to fix P0368?
Why does P0368 cause a long crank?
Is P0368 the same as P0340?
What causes P0368 on Chrysler 3.5L, 3.7L, and 4.7L engines?
What causes P0368 on a BMW?
What scanner do I need to diagnose P0368?