Corey Barnes
Well-Known Member
- Messages
- 73
- Location
- Mobile, AL
Hey guys maybe someone has been through this before. I have the 3.7l and I started noticing slight vibration at 600 rpm so I decided to change the spark plugs since it was over 100,000 miles. That seemed to take care of it for a few days. I just replaced all 5 coil packs and the vibration is still there. I only feel it at 600 rpm and anything above that is smooth. Could it maybe be the alternator causing this? I had just replaced the battery and my headlights still dim when braking, rolling up the windows, turning on the ac, even the inside cab lights. Any suggestions??
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