Possible reasons why the automatic transmission stalls when shifting into gear:
1. Problems with the throttle position sensor:
* Erroneous sensor signals can result in incorrect fuel regulation, causing the engine to stall.
2. Faulty mass air flow (MAF) sensor:
* Improper air supply can disrupt the fuel-air ratio, causing the engine to stall.
3. Failure in the ignition system:
* Faulty spark plugs, ignition coils or wires can cause intermittent ignition and engine stalling.
4. Problems with the fuel system:
* A clogged fuel filter, faulty fuel pump, or other fuel system components can restrict fuel flow and cause the engine to stall.
5. Electronic problems:
* Malfunctions in the wiring or engine control module (ECM) can interfere with automatic transmission operation, causing the engine to stall when the transmission is engaged.
6. Automatic transmission malfunction:
*Damage to automatic transmission parts, such as transmission clutches or solenoids, can prevent torque from being transmitted to the wheels, causing the engine to stall.
7. Insufficient automatic transmission fluid level:
*Low fluid levels can cause gears to slip and the engine to stall.
8. Clogged automatic transmission hydraulic channels:
* Clogged hydraulic passages can prevent the automatic transmission from operating properly and cause the engine to stall when the transmission is engaged.
9. Poor condition of transmission fluid:
*Old or contaminated transmission fluid can cause poor lubrication and increased wear on automatic transmission components, which can cause engine stalling.
10. Wear of mechanical components of automatic transmission:
* Over time, automatic transmission components may wear out and require replacement or repair, which may cause the engine to stall when the transmission is engaged.
Diagnostics and repair:
To accurately determine the cause of the problem and perform the necessary repairs, it is recommended that you contact a qualified mechanic. They will perform diagnostics and determine the specific reason causing the automatic transmission to stop when the gear is engaged.