What causes the car not to move in D gear but works normally in R gear?
2 Answers
It could be an issue with the forward gear or a damaged solenoid valve for the forward gear signal from the computer. Below are specific causes and solutions: 1. Forward gear teeth grinding: Gear grinding essentially refers to the hard contact between two metal gears, accelerating the wear on the gear teeth. Solution: A major transmission overhaul is required. 2. Damaged solenoid valve for forward gear signal: You may noticeably feel the car struggles to start. Although pressing the accelerator speeds up while driving, there's no obvious sign of acceleration. Solution: Promptly visit a professional and reputable repair shop for inspection and add transmission oil to ensure better lubrication of the transmission gears.
I once encountered a situation where my automatic transmission car wouldn't move in Drive (D) gear but Reverse worked fine, which was quite confusing. After consulting an experienced friend, he reminded me to check the transmission fluid level. Sometimes insufficient or contaminated fluid can cause inadequate forward pressure, while Reverse might still barely function. Additionally, if sensors like the gear position sensor fail, the computer might incorrectly only allow Reverse gear to work. That time, I took some time to check the dipstick myself and indeed found the fluid level was slightly low. After topping up the fluid at a shop, the problem was resolved. I suggest fellow drivers not panic when facing similar issues - try some simple self-checks first to avoid unnecessary expenses. Remember, driving safety comes first - if you find your car can't move, pull over and stop safely immediately.
