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

Perform a road test on the vehicle with the customer. The road test may help to identify many faulty parts:
- Worn control arm bushings or strut bearings
- Weak strut dampeners
- Loose power steering gear mounts
- Wheel bearings
- Tires
Obvious conditions must be brought to the customer's attention before beginning an alignment. A waddle feeling in the back of the vehicle often indicates the occurrence of a bent rim and/or a belt shift in one of the rear tires. Vibration in the steering wheel or in the floor pan is often the result of static imbalance or radial runout of the front tires.