Yes, a damaged knock sensor can lead to serious engine issues in your 2004 GMC Yukon. The knock sensor detects engine knock or pinging and helps the engine control module adjust timing for optimal performance. If it malfunctions, it can cause incorrect timing adjustments, leading to reduced engine efficiency, increased emissions, and potential engine damage over time. It's important to address any knock sensor issues promptly to maintain engine health.
Knock sensor for the GMC Yukon is beneth the intake manifold mounted to the cam cover.
If your car would run lean the sensor would not be able to determine that and their could be engine damage.
For the exact location of the knock sensor, check your owners manual. There should be a diagram of the engine and all parts.
you will lose yuor engine
If the knock sensor failed the CEL (Check Engine Light) would be illuminated and the engine may "ping" or "spark knock" under load. Serious "spark knock" can damage the engine if allowed to continue.
the motor could pre-detonate or "knock" that can cause damage
It is screewed into the passenger side of the engine block just in front of the starter.
the knock sensor cuts the engine out so it won't damage the car if not replaced, the car just won't work.
There is 2 knock sensors on that engine and both of them are underneith the intake manifold. You MUST remove the intake to get to them, no other way.
That engine has 2 knock sensors and there both underneith the intake manifold. You must remove the intake to service them.
From the videos on YouTube. They are under the intake.
It has 2 of them and there both underneith the intake manifold. You can not see are get to them until you remove the intake.