ZR-1 Net Registry Forums - View Single Post - Engine noise- stuck lifter?

Tim555 · 06-07-2024

Update on this. I checked the resistance of the coil in the affected cylinder. It was 21.3k ohms cold and 22k ohms hot. I did notice that I can hear a noise under the car as well, and can feel an exhaust leak where the header connects to the rest of the exhaust on this side. The sound seemed more substantial than an exhaust leak ticking, and I don?t know if that leak was there before I started hearing engine sounds.

The cylinder for the engine that I thought was making the noise seemed to be a bit cooler than the others. An infrared thermometer on that part of the header showed temps 60 degrees cooler on an idling engine. Seems like the exhaust leak may be unrelated to the other noise I have, but the sound is also apparent when you stick your head under the car by the drivers door.

06-07-2024	#15
Tim555 Join Date: Mar 2024 Location: Northeast Posts: 46	Re: Engine noise- stuck lifter? Update on this. I checked the resistance of the coil in the affected cylinder. It was 21.3k ohms cold and 22k ohms hot. I did notice that I can hear a noise under the car as well, and can feel an exhaust leak where the header connects to the rest of the exhaust on this side. The sound seemed more substantial than an exhaust leak ticking, and I don?t know if that leak was there before I started hearing engine sounds. The cylinder for the engine that I thought was making the noise seemed to be a bit cooler than the others. An infrared thermometer on that part of the header showed temps 60 degrees cooler on an idling engine. Seems like the exhaust leak may be unrelated to the other noise I have, but the sound is also apparent when you stick your head under the car by the drivers door.