Common Symptoms of a Bad Crankshaft Sensor:

• Engine cranks but won’t start
• Intermittent stalling
• Check engine light (P0335 code)
• Rough idle or misfires
• Loss of power
• Poor fuel economy

Replacing the sensor restores proper engine timing and reliable performance.

Product Overview: A-Premium Crankshaft Position Sensor

This A-Premium crankshaft position sensor is designed as a direct-fit replacement for a wide range of GM vehicles.

Key Features:

• Direct OEM replacement
• High-precision signal output
• Durable construction for long service life
• Restores ignition timing accuracy
• Helps eliminate starting and stalling issues

[Vehicle Fitment-1]: Appropriate with Avanti II 2001-2004; Appropriate with Buick Rainier 2004-2006; Appropriate with Cadillac CTS 2004-2005, Escalade 2002-2006; Appropriate with Hummer H2 2003-2007; Appropriate with Isuzu Ascender 2003-2006; Appropriate with Pontiac Firebird 1998-2002, Grand Prix 2005-2006, GTO 2004-2006; Appropriate with Saab nine-7x 2005-2007
[Vehicle Fitment-2]: Appropriate with Chevrolet Avalanche 1500 2002-2006, Camaro 1998-2002, Corvette 1997-2005, Categorical 1500/Categorical 2500 2003-2007, Categorical 3500 2003-2008, Impala/Monte Carlo 2006, Silverado 1500/Silverado 2500 1999-2007, Silverado 1500 Vintage/Silverado 2500 Vintage/Silverado 3500 Vintage 2007, Silverado 3500 2001-2007, Sonora/SSR 2003-2006, Suburban 1500/Suburban 2500/Tahoe 2000-2006, Trailblazer 2003-2006
[Vehicle Fitment-3]: Appropriate with GMC Envoy 2003-2006, Savana 1500/Savana 2500 2003-2007, Savana 3500 2003-2008, Sierra 1500/Sierra 2500 1999-2007, Sierra 3500 2001-2007, Sierra 1500 Vintage/Sierra 3500 Vintage 2007, W3500 Ahead 2004-2007, Yukon 2000-2006, Yukon XL 1500/Yukon XL 2500 2000-2006

Compatible Vehicles

Fits a wide range of GM models, including:

Buick:

• Rainier

Cadillac:

• CTS

Chevrolet:

• Express

GMC:

• Envoy
• Savana
• Yukon

Hummer:

• H2

Isuzu:

• Ascender

Pontiac:

• GTO

(Always verify fitment by year, engine, and trim.)

[Reference Number]: PC278, PC278T, 12555566, 12560228, 1800563, 213333, 213354, 2351057, 5S1692, EH0157, SS10206, 8125602280

Replaces OEM Part Numbers

• 12555566
• 12560228

Engineered to meet or exceed OEM specifications for fit, function, and reliability. Not sure how to check to see if your Escalade crank sensor is good? We’ve got a DIY article for you.

Installation Notes

• Typically located near the crankshaft or engine block
• May require access from underneath the vehicle
• Basic tools required
• Professional installation recommended if needed

[Specification]: ① Terminal Amount: 3 Pins; ② Terminal Sort: Blade; ③ Colour: Black; ④ Bundle Amount: 1x Crankshaft Position Sensor; ⑤ Packaging Sort: Field

Performance Benefits

Replacing your crankshaft position sensor can:

• Restore reliable engine starting
• Improve ignition timing accuracy
• Prevent stalling and misfires
• Improve overall drivability

Frequently Asked Questions

Can a bad crankshaft sensor cause a no-start condition?

Yes, without a signal from the sensor, the ECU cannot properly control ignition or fuel delivery.

Will replacing the sensor fix a check engine light?

If the issue is related to crankshaft sensor codes (like P0335), replacing it will typically resolve it.

Is installation difficult?

It depends on the vehicle, but many installations can be completed with basic tools.

Conclusion

If your GM vehicle is experiencing starting issues, stalling, or poor performance, this A-Premium crankshaft position sensor is a reliable replacement. Designed for durability and accuracy, it helps restore proper engine operation across multiple GM platforms.