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

Throttle Body: Testing and Inspection

INSPECTION

1. Check that throttle plate does not bind or stick.
2. Check for wear, deposits or coolant damage.
3. Check that throttle valve moves smoothly through its range; closed to fully opened.

NOTE: Throttle body and throttle position sensor are replaced as a unit.