Possible causes of kicks in the box of a Honda Civic 4D automatic:
Mechanical problems:
* Worn Clutches: Over time, friction linings can wear out, causing slipping and kicking when shifting.
* Damaged Valve Body Gasket: This can cause fluid pressure leaks and shifting problems.
* Faulty Solenoid: Solenoids control the flow of fluid in the transmission, and malfunctioning ones can cause kicking.
* Dirty Oil: Automatic transmission oil becomes dirty over time, which can lead to shifting problems and kicking.
*Low Fluid Level: Low transmission fluid levels create insufficient pressure needed for smooth shifting.
Electrical problems:
* Faulty engine or transmission speed sensor: Incorrect sensor readings can cause the transmission to not operate properly.
* Wiring Problems: Opens or shorts in the wiring can disrupt power or sensor signals, causing the transmission to kick.
Software problems:
* Faulty Transmission Control Module (TCM): The TCM controls the operation of the transmission, and problems with it can cause the transmission to shift incorrectly.
* Outdated Software: Regular TCM software updates can improve transmission performance and eliminate kicking issues.
Other possible reasons:
*Worn Engine Mounts: Worn mounts can allow the engine and transmission to move excessively, resulting in kicking when shifting.
* Unbalanced Tires: Unbalanced tires can create vibrations that are transmitted to the transmission and cause kicking in the transmission.
What to do:
* Check the level and condition of the transmission fluid.
* Have the transmission diagnosed by a qualified mechanic.
* Replace worn parts, repair leaks, or reprogram the TCM as necessary.
*Follow maintenance recommendations, including regularly changing transmission fluid and filters.