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Cadillac Repair/04 cadillac deville

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Expert: - 11/1/2011


Question
i have a well cared for and maintained 04 cad deville...new tires, balanced and rotated routinely and newer brakes....

i however have always got a shake in the wheel at 64-74 miles per hour.   can you help me find out why this is happening

Answer
Hello,

Here is what you are dealing with and what to consider-If the front suspension is tight the most common problem is a balance of the tires and you said you had that done. Has this vibration been there before you changed the tires, before you rotated them or are you chasing a problem that has existed for a long time?
The second thing I would be looking at is the potential of a bad axle (CV) assembly. Possibly a bad engine or transmission mount.
Please remember, I am not at the vehicle, so all I can do is give you ideas.
I would have suggested a bad rim or tire, but it would be almost impossible for this to happen.
I guess the biggest question is was this vibration here all along the tire process? If so, its what I suggested as other possibilities.

One other thought, I do not know if this has a shock in the steering known as a vibration dampner. If so, that would be the very first thing I would go for because it does exactly as described.

Please answer my question and please let me know how it turns out.


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Rob Painter

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Alarm system questions cannot be answered on this forum. These systems are not what I can answer. Without being physically at the vehicle and not knowing what kind of electrical service has been done on the vehicle, there is no possible way to give an accurate answer over the internet. My expertise is in Ignition/key based anti-theft systems. These issues include GM VATS (resistor chip in key blade) PASSLOCK (MRD)-ignition lock rotation based, no special ignition key and the PKIII Transponder (computer chip in key) systems. These systems are not alarm based and are integral with the starting of the engine. This is why I cannot diagnose alarm problems without physically looking at the vehicle: Alarm systems are a completely different annimal than ignition key/lock based anti-theft system. Many alarm questions come from vehicles 10 years old, and since older, many hands that had been involved over the years.I am an expert in all GM factory (ignition/key based)systems. Alarm system questions pose to many situations beyond my knowledge as to what has been done to the vehicle over the years. Some guy may have actually wired the stereo into the alarm system. Who knows? Over my past 30 years in vehicle wiring repair, I have seen unbelievable wiring disaters done by guys that consider themselves "mechanics." I have seen stereos and alarms intalled using surgical tape. I have seen modules burn up, un-fused circuits, wiring jambed between the doors and even lamp cord used for a starter kill. To answer alarm questions over the internet without examining the vehicle is like asking; What does it take to remove a dent?

Experience

Education/Credentials-ASE certified. 11 years with a GM dealer and 17 years with a repair facility dealing with only the repair of theft recovered vehicles.

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