Is Transmission Shift Shock Serious?
1 Answers
Transmission shift shock generally does not have a significant impact. It is usually caused by dirty or deteriorated transmission fluid, and replacing the transmission fluid can resolve the issue. Below are common transmission shock faults and their causes: 1. Fault: When starting, shifting from park or neutral into reverse or drive causes severe vehicle shock (jerking sensation). During driving, there is noticeable shock during automatic transmission upshifts. 2. Causes: High engine idle speed; improper adjustment of the throttle cable or throttle position sensor, leading to excessive main circuit oil pressure; malfunction of the main pressure regulator valve, causing high main circuit oil pressure; slipping of shift components; failure of the oil pressure solenoid valve; or ECU malfunction.