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

Checking Engine Mechanical Systems (No Start)

Tests 869 - 874:




SYMPTOM
* CHECKING ENGINE MECHANICAL SYSTEMS (NO START)

POSSIBLE CAUSES
- Engine compression out of specification
- Spark plug cables positioned incorrectly
- Spark plugs wet
- Valve timing out of specification