Oldsmobile Intrigue Crankshaft Position Sensor: A Vehicle-Specific Guide (1998-2002)
If your Intrigue stalls when it's hot or refuses to start, the crankshaft position sensor is a likely culprit.
- Stalling when the engine is hot is the number one sign of a failing crankshaft sensor on an Intrigue.
- The replacement procedure is different for the 3.8L (98-99) and 3.5L (00-02) engines; the 3.5L is easier.
- For best results, use an OEM-quality brand like ACDelco or Delphi to avoid premature failure.
- A 'crank relearn' procedure with a scan tool is recommended after installation for optimal performance.
Is a Failing Crankshaft Sensor a Common Oldsmobile Intrigue Problem?
Yes, it is a very common issue for the 1998-2002 Oldsmobile Intrigue, as well as other GM vehicles from this era that use the 3.8L L36 and 3.5L LX5 V6 engines. The classic symptom is the engine stalling after it has warmed up and then refusing to restart until it cools down. This happens because heat can cause the sensor's internal electronics to fail, interrupting the signal to the computer. Many owners have experienced this specific problem.
Top Failure Symptoms
A bad crankshaft position sensor can mimic other problems, but there are a few key signs to watch for on your Intrigue:
- Engine Stalls When Hot: The most reported symptom. The car runs fine when cold, but stalls in traffic or after driving for a while. It will often start again after a 20-30 minute cool-down period.
- Engine Cranks but Won't Start: The starter will turn the engine over, but it will never fire up because the computer isn't getting the signal it needs to create a spark.
- Check Engine Light: A failing sensor will almost always trigger the Check Engine Light. Common trouble codes include P0335 (Crankshaft Position Sensor "A" Circuit Malfunction) and P0336 (Crankshaft Position Sensor "A" Circuit Range/Performance).
- Rough Idling and Misfires: The engine may run poorly, shake, or misfire because the ignition timing is off. 🎬 Watch: 9 common symptoms of a bad crank position sensor.
Known Issues: Recalls and TSBs
While there are no specific recalls for the crankshaft position sensor itself on the 1998-2002 Intrigue, there are related safety recalls you should be aware of. NHTSA recall 15V-701 was issued for 1998-1999 Intrigues with the 3.8L V6 for oil leaks from the valve cover gasket that could drip onto the hot exhaust manifold, creating a fire risk. This is relevant because oil leaks are a known cause of crankshaft sensor failure. Another recall, 14V-400, addressed unintended ignition key rotation which could cause the engine to shut off while driving.
Choosing the Right Aftermarket Crankshaft Sensor
For a part this critical, quality matters. A cheap, poorly made sensor can fail quickly, leaving you stranded again. Here’s a breakdown of the brands available:
- Tier 1: OEM Quality (ACDelco, Delphi): ACDelco is the original GM parts brand, and Delphi was the original equipment manufacturer for many GM electronics. For reliability and peace of mind, these are the top choices. They are engineered to the original factory specifications.
- Tier 2: Reputable Aftermarket (NGK/NTK, Standard Ignition, Walker Products): These brands have a strong reputation for producing quality electronic components that meet or exceed OEM standards. They are a solid choice if an OEM-branded part isn't available or is priced significantly higher.
- Tier 3: Economy Brands (Dorman, Holstein, and others): Brands like Dorman often provide a value-oriented option. However, for critical sensors, owner reviews are often mixed. While they can work, their lifespan and reliability might not match the higher-tier brands. Using an economy brand can be a gamble; it might last for years or it might fail prematurely.
Pro Tip: Given the labor involved in replacing this sensor, especially on the 3.8L engine, spending a little extra on a high-quality ACDelco or Delphi sensor is a smart investment to avoid doing the job twice.
| Part Type | Estimated Cost |
|---|---|
| New Aftermarket | $28.11 - $112.81 |
| Shop Labor | $150 - $250 |
| Total Professional Replacement | $178 - $363 |
Note: Costs are estimates and can vary based on your location, the specific brand chosen, and the repair shop's labor rates.
Frequently Asked Questions
Where is the crankshaft sensor located on the Intrigue?
The location depends on your engine. On the 3.8L V6 (1998-1999), it is located on the front of the engine block, behind the crankshaft pulley/harmonic balancer. 🎬 See this walkthrough for replacing the 3.8L engine sensor. This is a more difficult job. On the 3.5L V6 (2000-2002), it is on the front side of the engine block (facing the radiator), located behind and above the starter motor.
🎬 Watch: How to replace the sensor on a 3.5L V6.Can I replace this sensor myself?
For the 3.5L V6, it is feasible for a DIY mechanic with some experience. You will need to remove the starter motor to gain access. For the 3.8L V6, the job is much more difficult as it requires removing the crankshaft pulley, which often needs a special puller tool and can be very tight. Due to the difficulty and the need for a special relearn procedure, many owners choose to have a professional handle the 3.8L replacement.
What is a "crankshaft position variation learn procedure"?
After replacing the sensor, GM vehicles often require a "relearn" or "CASE learn" procedure. This uses a professional scan tool to calibrate the new sensor with the engine computer to account for tiny manufacturing differences. While some forum users report the car runs without it, performing this procedure ensures the most accurate ignition timing and prevents potential misfire codes. Most DIYers will need to visit a shop to have this done.
Is there a difference between the sensor for the 3.8L and 3.5L engines?
Yes, they are different parts. The sensor for the 1998-1999 3.8L V6 is not the same as the one for the 2000-2002 3.5L V6. Always ensure you are buying the correct part for your specific year and engine size.
Helpful Videos
Technical Specifications
OEM Part Numbers: 12567649 24508213 10456555
The crankshaft position sensor for the Oldsmobile Intrigue is a Hall Effect sensor. The 3.8L engine uses a 4-pin connector, while the 3.5L engine uses a 3-pin connector. Always verify the part against your vehicle's specific engine before purchase.
We Have This Part in Stock
The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- Oldsmobile Intrigue: