Information for 2007-2011 Chevrolet Blazer Owners Regarding the Ignition Knock Sensor
Important vehicle identification information for owners of Chevrolet SUVs from this model year range.
- The Chevrolet Blazer was not produced for the North American market for model years 2007-2011.
- You may own a Chevrolet TrailBlazer, which was produced through the 2009 model year and is a different vehicle.
- Parts are not interchangeable between the Blazer and the TrailBlazer.
- Always verify your exact vehicle model and year using your VIN before ordering any parts.
Vehicle Model Clarification
The Chevrolet Blazer was not manufactured for the North American market between the 2006 and 2018 model years. The previous generation, the S-10 Blazer, ended production in 2005. The Blazer name was reintroduced in 2019 on a new crossover SUV. Therefore, no new aftermarket or OEM parts, including Ignition Knock (Detonation) Sensors, exist for a 2007, 2008, 2009, 2010, or 2011 Chevrolet Blazer.
Is It a Chevrolet TrailBlazer?
Owners looking for parts for a Chevrolet SUV from the 2007-2011 period may actually own a Chevrolet TrailBlazer. The TrailBlazer was a separate mid-size SUV model produced from 2002 through the 2009 model year. It is a common point of confusion, but the Blazer and TrailBlazer are different vehicles and do not share the same parts. The TrailBlazer was available with engines like the 4.2L inline-6, which does have one or more knock sensors.
Pro Tip: Before searching for parts, check the nameplate on the rear of your vehicle. It will clearly say "Blazer" or "TrailBlazer." You can also use the Vehicle Identification Number (VIN) on your driver's side dashboard or door jamb to definitively identify your vehicle's make, model, and year.
Knock Sensor Information for the Chevrolet TrailBlazer (2007-2009)
If you have confirmed you own a Chevrolet TrailBlazer, here is some general information about its knock sensor. Prices for a 2007 TrailBlazer knock sensor can range from approximately $22 to $162, depending on the brand and quality. For a similar SUV like the 2011 Equinox, prices range from about $41 to $88. This gives you a general idea of what to expect for a TrailBlazer.
| Part Type | Estimated Price Range |
|---|---|
| New OEM (GM Genuine Parts / ACDelco) | $60 - $130 |
| New Aftermarket | $22 - $70 |
Frequently Asked Questions (FAQ)
Why can't I find parts for my 2008 Chevrolet Blazer?
You cannot find parts because Chevrolet did not produce a vehicle named "Blazer" for the 2008 model year in North America. Production of the S-10 Blazer stopped in 2005, and the name was not used again until 2019. You may have a Chevrolet TrailBlazer.
What's the difference between a Blazer and a TrailBlazer?
Starting in 2002, the TrailBlazer became its own distinct model, separate from the S-10 Blazer. It is a different size and uses different parts. The S-10 Blazer (produced until 2005) was a smaller SUV based on the S-10 pickup, while the TrailBlazer (2002-2009) was a larger, body-on-frame SUV.
I'm sure I have a 2007-2011 Chevy SUV. What could it be?
During that time, Chevrolet offered several SUVs. The most likely models often confused with the Blazer name are the TrailBlazer (until 2009), the Equinox, the Tahoe, or the Suburban. Check your vehicle's registration, insurance card, or the emblems on the vehicle itself to be sure.
Where can I find the knock sensor on a similar vehicle like a TrailBlazer or Equinox?
On many GM engines from this era, the knock sensor is typically located on the engine block or cylinder head. For specific locations, it is best to consult a repair manual for your exact vehicle model and engine type.
Technical Specifications
Not applicable. The 2007-2011 Chevrolet Blazer was not manufactured for the North American market.
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.
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