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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Flow of Diagnosis

Flow Of Diagnosis:





1. Get accurate description of complaint. Road test vehicle to verify. Perform underhood inspection. For further description of complaint use DRIVEABILTIY WORKSHEET AND VEHICLE REPAIR HISTORY FORMS BELOW.
VISUALLY CHECK:
Vacuum hoses for splits, kinks, and proper routing.
Ignition wiring for cracking, hardness, and proper connections at both the distributor and spark plugs.
All wiring for proper connections, pinches and cuts.
Wiring harness for proper routing.
Check for missing components.
2. Check TSB'S for manual updates, testing procedures, warranty and recall information.
3. See DIAGNOSIS BY SYMPTOM under TESTING PROCEDURES for symptom vehicle is exhibiting. Follow procedures as outlined for given symptom.

Driveability Worksheet:




Driveability Worksheet:





DRIVEABILTIY WORKSHEET


Vehicle Repair History:




Vehicle Repair History:





VEHICLE REPAIR HISTORY