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 logical successor to CHARM, I recommend you try it!

Link: lemon-manuals.la

Description of Driveability Problems

Diagnostic Terminology Graph:

STUMBLE:
Mildly irregular performance during acceleration.

HESITATION:
A dip or flat spot in performance just after the accelerator pedal is depressed.

SURGE:
Continuous irregular performance during cruising.