Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

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Pre-Alignment Road Test With Customer

Road test the vehicle with the customer. The road test may help identify the following problems:
- Worn control arm bushings
- Worn strut dampeners
- Weak strut dampeners
- Loose rack and pinion mounts
- Loose wheel bearings
- Loose tires

Bring obvious conditions to the customer's attention before you begin an alignment. A waddle feeling in the back of the vehicle most often indicates a belt shift in one of the rear tires. Vibration in the steering wheel or the floor pan is often the result of static imbalance or radial runout of the front tires.