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

Excessive Idle Speed In Neutral


1. Leaky idle control solenoid valve.
2. Leaky fast idle control solenoid valve.
3. Throttle body valve stuck open.
4. Fast idle mechanism adjusting screw out of adjustment.
5. Leaky fast idle valve.
6. Defective ECU.
7. On models with automatic transmission, leaky A/T idle control solenoid valve.