Originally Posted by esandbrink
Just got the car and I dont think the plugs has been change for a long while. Just bought the stuff to do it. About the SC it sounds like there is a little bit of space between the gears. The reson I think that the sc is make noise at idle is due to the slight miss, the SC gauge ls slightly moving back and forth. Im sure i can change the cuppler but I dont want to do all that work and then find out that its something else. Im also looking for a book on the vehicle. any one
The internals of your SC will outlast you. The coupler is designed to be the weak point. That'* where the slop is coming from that you're feeling. I've never seen a gear even break of a tooth, much less wear. Rotors, too. Although it would be pretty hard to break those!
If properly cared for, the SC will outlast any car. The only maintenance required is changing the oil occasionally, and a coupler every 100,000 to 150,0000 miles. The ZZP coupler is supposed to be improved, but we don't have any long-term testing on it.
Noise at idle is a coupler. A jittery boost gauge can be normal. Your stumbling is unrelated to the SC.