Won’t move drive reverse
My Sephia has 160 k plus miles on it, and it barely moved in drive or reverse. It also made awful screeching sounds when I pressed on the gas. It doesn’t matter how much or how little I pressed the pedal. My check engine light came on. So I knew there were some problems brewing with my transaxle range sensor and the idle air control valve. There was also some scraping in the front of the car. It felt like it was located in the undercarriage of the
car when I moved from a complete stop. Earlier today the scraping happened more frequently. Then all of a sudden it wouldn't go over 2
car when I moved from a complete stop. Earlier today the scraping happened more frequently. Then all of a sudden it wouldn't go over 2
Experienced mechanics share their insights in answering this question :
Hi! The screeching sound you’re talking about sounds like a worn drive belt and the scraping sound will likely be related to the brakes of the vehicle. I suggest that you have a technician overlook the vehicle and specifically inspect the braking system and the drive belt condition. If it won’t move in drive or reverse then it is possible that there is a transmission issue present such as low transmission fluid.
Being that the vehicle cannot be driven at the time, you may benefit from a mobile mechanic company, such as YourMechanic, which will come to you to inspect the issue with your braking system and gears.
How to Identify and Fix Common car Problems ?
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The number one cause is the clutch components have worn out and no longer have enough friction material to overcome the weight of the vehicle. A second possibility is the transmission can be stuck in two gears at the same time and it won`t move. The shift mechanism can malfunction and keep you from selecting a gear.
However, a defective speed sensor is viable by an illuminated warning light on the dashboard, signalling that it`s time to repair or replace the speed sensor. These are the major causes that hamper the transmission system, due to which the car won`t go in reverse sometimes.
If when you put your vehicle into gear and it won`t move, this may be a problem with low transmission fluid due to a leak, the shifter, shifter cable, or it could even be a problem in the valve body of your automatic transmission.
The most common reason for a car not moving in drive or reverse is because of transmission problems. In this case, you will need to check your gear function, gear shifter and clutch. The most likely cause for a car not moving forward is because of malfunctions within the gear components.
The most typical causes of a car not accelerating while driving include a faulty sensor, contaminated fuel or air filters, or a faulty timing belt. Generally, this isn`t something you should ignore.
Transmission Range Sensor (TR)/ Transmission Position Sensor
The PCM uses this information to control which gears of the transmission to enable or disable. When the TR sensor fails it can cause wrong gear starts, no upshifts, or what feels like a falling-out-of-gear condition.
Worn Transmission Fluid (Automatic Transmission)
Over time, the transmission fluid gathers dirt and grime. This can cause the engine to run roughly, stall or fail to accelerate when you press down on the gas pedal. You may need to have a transmission fluid change before more damage is done.
If the sound resembles humming, buzzing, or clunking, you may be experiencing transmission failure. Bad automatic transmissions may emit humming, buzzing, or whining noises while manual transmissions have harsher “clunking” sounds.
Problems Reversing – One common problem that can happen with a clogged filter is difficulty moving in reverse. The lack of fluid flowing through the transmission can cause the reverse gear to lock. This may prevent the car from going in reverse altogether, or it may cause it to hesitate before launching into reverse.
Relevant Questions and Answers :
the most relevant questions and answers related to your specific issue
Alternator belt got torn whilst driving and had new belt fixed but the car won’t move on drive or reverse after few seconds drive
ANSWER : This is a sign of a faulty transmission control solenoid. Modern automatic transmissions use pressurized hydraulic fluid to change gears. Every time a gear change is required, the car’s computer activates a transmission solenoid, which directs transmission fluid into the valve body to engage the correct gear. When this is faulty or not working properly, this can cause a delay in gear shifting or in some cases cause the car to not shift at all. If you’d like, a certified technician from YourMechanic can come to your home or office to inspect your vehicle, and provide a definitive diagnosis for the shifting issue.
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My 1999 Buick Regal will go into reverse and move, but when I put it into drive it just revs up and won’t move.
ANSWER : Hi there. Check the transmission fluid and see if its low or dark. If the fluid is full and red in color, then the transmission is slipping. I recommend seeking out a professional, such as one from Your Mechanic, to help you with your transmission.
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My car will only shift into reverse and neutral, can’t get it into the drive gear
ANSWER : This may be a result of low transmission fluid or potentially a faulty transmission control module. A faulty transmission control module may cause a delay in acceleration or erratic shifting of gears. The transmission control module has various sensors such as vehicle speed sensors, wheel speed sensors, throttle position sensors, turbine speed sensor, and transmission fluid temperature sensors that all direct information to it in order for it to perform it’s function. Other functions controlled by the TCM are components such as a kick down switch, traction control system, and cruise control module. Any of these may also affect the way the transmission control module performs and controls the transmission and the shifting of your vehicle. I would suggest having a professional from Your Mechanic come to your location to properly diagnose your transmission problem.
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When shifting from reverse to drive or drive to reverse I hear a clicking noise.
ANSWER : Hi there. There is a gear train issue with your transmission or a bad CV Shaft that is causing the transmission to shift had into gear. Since it shifts harder in reverse than forward, I suggest that the gears inside the transmission are worn. I recommend seeking out a professional, such as one from Your Mechanic, to help you diagnose your transmission issue.
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Car moves in 1st gear and reverse but won’t move in drive
ANSWER : Hello, first thing to check of course is fluid level. If the fluid level is low, any number of weird symptoms can occur. Your symptoms sound like the valve body may be sticking from a bit of grit or leaking valve, or the line pressure to the valve body may be low. To avoid any unnecessary repairs, I would recommend having the shifting issue inspected by a mobile, professional mechanic, such as one from YourMechanic, to diagnose this problem, get an accurate assessment of damage and cost estimate for repairs.
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Shifting issues from drive to reverse and back to drive
ANSWER : Mercedes has a dealer service order (#Order No: S-B-27.19/118A
) that addresses diagnosis, and possible dealer repair of the transmission for your model. Check with your dealer to confirm coverage of this.
) that addresses diagnosis, and possible dealer repair of the transmission for your model. Check with your dealer to confirm coverage of this.
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Car will start and can move into drive and reverse but won’t pop into gear
ANSWER : Hi there. In many cases, this issue is caused by a failing shift solenoid or transmission fluid that is dirty or causing an obstruction inside the hydraulic lines of the transmission and needs to be flushed. It’s probably a good idea to have a professional mobile mechanic come to your location and complete a car is hard to shift inspection.
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Car won’t reverse but drives fine. Will pop in reverse around 3000 rpms.
ANSWER : Your problem is probably due to wear in the transmission. The mileage is about right. The transmission operates using hydraulic pressure generated by an internal pump. As the fluid pump and other components wear, the clearances inside them increase and the fluid pressure drops, particularly at idle speed. When you speed up the engine, the fluid pressure gets high enough for the transmission to operate in reverse. You may be able to stretch the life a bit by changing the fluid but it’s likely that you’re eventually going to have to replace the transmission. But before you do anything drastic, contact Your Mechanic to have a technician come out to your home or office to check out your transmission and make a recommendation.
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