The Pontiac Torrent Knock Sensor protects the engine of your SUV by carefully listening for the sharp vibrations associated with destructive detonation and signaling the powertrain control module to correct timing before serious damage occurs. This compact piezoelectric Knock Sensor is threaded into the block. The crystal material turns vibration into an electrical pulse. A control loop verifies the pulse thousands of times each minute. The module immediately delays the spark a few degrees when the signal spikes until combustion settles. It then creeps the timing forward again. This way, the motor runs right at the safe knock limit while still delivering strong power, even on lower-octane fuel. In early designs, a single Knock Sensor monitored the entire engine, but current Pontiac V6 designs use two or cylinder-specific monitoring, allowing the computer to optimize each bank. In turbo systems, boost pressure is also trimmed along with timing. In spite of these developments, every Knock Sensor in a Torrent has the same task: preserving the pistons and bearings, all while enhancing acceleration. If the Knock Sensor malfunctions, the Pontiac computer will be unaware of the knock. As a result, it locks timing in a conservative map. This robs a Torrent of fuel economy and responsiveness. Thus, the Knock Sensor is critical albeit often overlooked.
Each OEM Pontiac Torrent Knock Sensor we offer is competitively priced and comes with the assurance of the manufacturer's warranty for the part. Furthermore, we guarantee the speedy delivery of your orders right to your doorstep. Our hassle-free return policy is also in place for your peace of mind.