Camshaft Position Sensor 😅🔧
If your GM vehicle is acting moody—like hard starting, rough idle, stalling, or a check engine light that won’t quit—this camshaft position sensor is the kind of
“start with the basics” fix a lot of people end up tackling.
What this sensor is for
This camshaft position sensor is designed to send real-time camshaft rotation position signals to the ECU, helping support proper ignition timing and smoother
engine behavior. It’s intended as a replacement for worn or failed factory sensors on compatible 2007–2013 GM models.
Cross reference (factory original part numbers): 2133826, 12591720, 12568983, 12585545.
Compatible with: 2007–2013 Chevy Silverado 1500, Tahoe, Avalanche, Suburban, Express; GMC Sierra, Yukon, Savana;
Cadillac Escalade ESV, EXT.
Built for a stable signal and a solid under-hood fit
- Plug-and-play installation focus with exact factory dimensional design—intended to avoid extra cutting, wiring, or modification.
- Hall Effect sensing core intended to capture camshaft rotation position and transmit stable timing data to the ECU.
- Under-hood materials: sensor shell molded with PA66+GF30 glass fiber reinforced engineering plastic for high-temperature and oil/sludge corrosion resistance.
- Sealing hardware: thickened fluororubber sealing O-ring intended to help block engine oil leakage and reduce internal corrosion risk.
- Electrical connection: standard 3-pin connector with nickel-plated copper terminals to resist oxidation and rust for continuous signal output.
- Mounting durability: embedded brass mounting bushing intended to strengthen shock resistance during installation.
- Testing before leaving the factory: passes signal detection, high-temperature aging, and vibration durability tests intended to meet OEM quality standards.
Because sensors can cause “why is it doing that?” moments
Honestly, camshaft position issues can show up as a mix of annoying symptoms—hard starting, rough idle, acceleration lag, stalling, and an illuminated check engine light.
This sensor is designed as a replacement option to help restore more normal ignition timing behavior and support steadier engine operation on compatible GM vehicles.
Note: symptoms can have multiple causes, so it’s smart to verify with diagnostics and match the correct part number for your vehicle.
People who want a practical replacement
- DIY vehicle repair folks who prefer a straightforward replacement approach (when the part number matches).
- Shops and technicians looking for an OEM cross-reference option compatible with the listed 2007–2013 GM models.
- Anyone troubleshooting camshaft-related drivability symptoms and planning to replace a worn/failed sensor as part of the repair process.
A sensible replacement sensor for compatible GM trucks & SUVs
This camshaft position sensor is basically for people who want an OEM cross-reference replacement that’s intended to fit cleanly and provide a stable cam signal to the ECU.
If you’ve got symptoms like hard starting, rough idle, stalling, or a check engine light—and your OEM part number lines up—it’s a practical option worth considering.
As always, confirm fitment and use proper diagnostics so you’re not guessing at the cause.