Systematic Approach

Systematic Approach

During the last 10-15 years, vehicle design and engineering have dramatically changed due to the following factors:

* Increased fuel costs
* Decreased fuel supplies
* Corporate Average Fuel Economy requirements
* Clean air legislation
* Foreign competition
* Ability to withstand collision
* Rising customer expectations


Most Vehicle designs have evolved from full-frame construction to lighter unibody designs. These designs transfer noise and vibration much more readily.


During this same period, options such as the following have become increasingly popular:

* Air conditioning
* Power steering
* All-wheel drive


Such options increase engine load and can also generate unwanted noise and vibration.


Customer perception of quality can be directly linked to the presence or absence of unwanted noise and vibration. A technician's ability to quickly diagnose and repair a noise or vibration directly affects that customer's loyalty to the dealership.


The intent of this information is to provide a systematic approach to vehicle vibration diagnosis and correction. By using Strategy Based Diagnosis and troubleshooting philosophies covered in this section, technicians will be able to provide effective and timely repairs.