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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Diagnostic Notes




Before proceeding to the appropriate symptom perform the following inspection:

NOTE: It is essential that the vehicle has been properly warmed up and is at operating temperature (except when attempting to diagnosis a cold driveability problem). The catalytic converter and feedback systems will not function as designed if this is not achieved. Failure to do so will result in inaccurate test results.

VISUALLY CHECK:
1. Vacuum hoses for splits, kinks and proper routing.
2. Ignition wires for cracking, hardness and proper connections at both the distributor and spark plugs.
3. All wiring for proper connections, pinches, routing, and cuts.