I have a 1999 Dodge Ram 1500 Sport, when driving & vehicle reaches 40-45 mph it begins to shake. Have replaced several electrical components w/o fixing the problem. What would cause this?
by 
e66mcso
ANSWERS: 3
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Electrical? I wouldn't say it's an electrical problem. Where the rubber meets the road, so to say, lies your problem. Look at wheel balancing, alignment, brake rotor condition, etc. These are all factors that can cause shaking. I should say, however, that I'm unclear on the shaking portion. Is the steering wheel shaking? The entire truck shaking? Only a corner? Is it violent, or barely noticeable? Need more info.
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Have you changed out the spark plug wires? If they are old maybe a new set will help. I am like the other answer are you sure it is electricial in nature. At night go out and crank your truck and look at engine and see if you see any spark escaping spark plug wires or anywhere else. Have some one rev the engine and see if any spark occurs. Mr bill
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Forgot a redneck diagnostic tool with electricial. Start the engine put tin gear with your foot on the brake rev the engine all the while holding the vehicle with the brake. If it is an electrical breakdown you should feel vibration if not look elsewhere. mr Bill
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