Home » Crank, Oil and Piston » Would A Bad Knock Sensor Make The Motor Rattle As If A Rod Was Bad Would A Bad Knock Sensor Make The Motor Rattle As If A Rod Was Bad I have a 1995 Toyota, which begins quite suddenly, the engine rattle, as the rod is bad, a bad knock sensor would it sound Tags:Knock, Motor, Rattle, Sensor Related Questions What Is The Location Of The Knock Sensor On A 99 S10 Blazer Is there a web site where i can get diagrams of engines or vehicles for repair purposes? Anyone Know Good Websites For Aftermarket Car Parts For A Low Price I drive a 1998 Nissan Maxima SE-L, and I am looking for Lambo Doors 20″ Wheels Interior neon Lighting Blue Headlights Intakes Cat Systems Exhausts Mufflers The only site Answers for The Question Lover not a Fighter Engine knocks usually happen during acceleration – not during idle nor at cruise. Try some premium gas. If the knocking sound goes away, it is engine knock (and bad sensor). Good Luck… Alex W Well the whole purpose of a knock sensor is to send information to the ECU to prevent a knock condition. So yes, if your ECU cannot monitor a knock, it’s a possibility. However, you should have a DTC set and the check engine light would be on. Chad F No the sensor can not cause a knock sound. You may have a rod going. tallntrue56 No. the sensor will retard the timing to help prevent detonation and ping and the change is not audible .A rod knock has a very distinguished heavy sound-more like a hammer against steel which it kinda is. It gets worse at higher rpm when the oil is pushed out of the rod journal. This is almost always caused from a low oil level or loss of oil pressure and it just takes once to do the damage. Re-create the rattle and remove the plug wires one at a time with insulated pliers. The bad rod is the cylinder that the noise changes on. good luck Incoming search terms: Will A Knock Sensor Make A Tapping Noise When Bad,Will Bad Knock Sensor Cause Knocking,Temp Sensor Cause Rattle Noise,Does Your Car Make Noise If Your Knock Sensor Is Shot,Will Knocking Sensor Make A Knocing Sound?,Will The Engine Make Nosie If A Sensor Is Out,Will Truck Sound Like It Has A Knock If Knock Sensor Is Bad,Will A Map Sensor Cause A Knock,Will A Knock Sensor Make Your Car Sound Like Its Knocking,Can Knock Sensor Cause A Rattling Noise At Idle?