Rumbling, Shaking, please look. Getting me worried
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A while ago I started getting this rumble and shaking in the car at idle, like sitting at a stop light or drive through it would just randomly vibrate every few seconds enough to rumble the whole car. Recently it's intensified, I can get on the throttle and at certain throttle inputs the car will shake, almost like somebody is feathering the throttle ever so slightly up and down. If I put the right throttle input in I can get it to backfire, at least it sounds like a backfire, but quieter. Or I can just get on the throttle hard and power through it and it will go away. In any case, it's startin to worry me and I was wondering if anyone had any idea what it might be?
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Took it to autozone today to diagnose it. Cylinder 8 misfire. guy said either spark plugs or spark plug wires. What do you guys recommend for plugs on an LS1?
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Originally Posted by supersickss
good luck changing that plug
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Thanks guys, I've read alot about the TR-55's here and am probably going that route. Don't know much about the TR-6 though, anyone got info on it? What makes it different or better than the TR-55? Thanks
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Don't know how long you've had the car or if you bought it from someone. Sometimes people, even shops, skip replacing that #8 plug because it's hard to do. Don't be intimidated by what is said about how hard it is. It's not that hard, just a little frustrating the first time. Read up on it and dive in.
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the tr6 is a colder plug. its gapped at .035 and is better used for nitrous/blower applications. so definately go with the tr55's and if you change the wires go with the MSD's.