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)

Or, hide this message: temporarily or permanently

Symptom Flow



Symptom Action to Take

Odor From Exhaust System Go to 23-1. 23-1 Check Exhaust System

Black Smoke (Rich Mixture) Go to 23-3. 23-3 Check Air Intake System

Blue Smoke (Burning Oil) Go to 23-6. 23-6 Check Positive Crankcase Ventilation (PCV) System

White Smoke (Coolant) Go to 23-9. 23-10 Check Cooling System