I just got a new transmission put in my car and it drives and reverse but won’t go up hill.
My car broke down on me at Walmart when I crank it the car came on just fine but when I put it in reverse or drive it would sound like it's in neutral so I bought a transmission and got it put in now that the transmission in there the car goes in drive and reverse just fine but when I tried going forward up the hill it wouldn't go but it would go in reverse up hill. Someone told me I need a transmission strainer(filter) but will it really fix my problem or do I need another part please help me going to get my part as we speak. Thanks!
My car has 1000000 miles.
My car has an automa
Experienced mechanics share their insights in answering this question :
This may be a sign of a faulty transmission control solenoid. As you know, 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. I would recommend having an expert from YourMechanic come to your location to take the car for a test drive to more specifically determine the cause for this.
How to Identify and Fix Common car Problems ?
Our sources include academic articles, blog posts, and personal essays from experienced mechanics :
In many cases, delayed shifting of any kind is caused by issues with the transmission`s valve body. Shift solenoid or computer malfunctions can also result in these types of hitches and may require transmission service for correction.
If your manual transmission won`t shift into reverse, try pumping the clutch a few times to build up pressure. If this doesn`t help, turn off the engine and shift through gears, including into reverse. If you are able to engage reverse this way, you know that the clutch needs attention.
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.
There isn`t a single fix for reverse not working, unfortunately. It could be a small repair like topping up the transmission fluid, or you could need a complete rebuild. Typically, manual transmissions that won`t engage in reverse have an issue with a damaged gear or the shift lockout ring.
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.
But if the solenoid malfunctions mechanically, no reverse or delayed and slipping reverse may occur.
Manual Transmission: Worn-Out Clutch
The clutch disc is a wearable component that may need regular replacement on your vehicle. If the manual transmission is slipping, losing power and difficult to shift, you may need the clutch adjusted or the clutch disc replaced.
Transmission won`t engage or stay in gear
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 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.
Yes, it can! In this Maintenance Minute, Andrew Markel talks about how and why rough transmission shifts can be caused by the air filter and what some of the likely culprits are.
When the transmission fluid isn`t clean or is blocked by a clogged filter, the internal components won`t have the lubrication they require to function properly. This could lead to shifting issues, grinding gears, slipping transmission or other common symptoms of transmission problems.
Any time a battery is disconnected, or in your case a transmission is replaced, it can take up to 90 days for the engine and transmission computer to relearn your driving habits. It`s normal for an automatic transmission not to shift into higher gears until the engine coolant temperature is at a specified temperature.
Rusting, power failure, irregular pressure, missing equipment, an incorrect amount of voltage or current, dirt stuck in the system and corrosion are some of the possible reasons why a solenoid valve may not properly close or open.
If your car has an automatic transmission, the shift solenoid will shift the gears for you. The transmission control unit will take the information from the engine and speed sensors along with other parts of your vehicle to then decide when to shift gears for power and fuel efficiency.
Low fluid levels can cause gears to miss, which will result in a grinding sensation. The occasional slipped gear might seem like a small issue at first, but it`s always a good idea to have the transmission looked at when this occurs to avoid costly repairs in the future.
But a blown fuse No. 38 becomes a likely candidate causing a loss of power to the transmission solenoids.
Turn off your vehicle`s ignition and wait patiently for 5 to 10 seconds. Start the engine and allow it to idle for several seconds. Switch off the ignition and wait patiently for another 30 to 40 seconds. Repeat these steps 2 to 3 times in order to reset your vehicle`s transmission control module.
Maintain Proper Transmission Fluid Levels
The #1 cause of transmission failure is low fluid, which causes overheating. In automatic transmissions, it causes delayed engagement, harsh shifts, and slippage.
In general, the torque converter includes components like a pump, a stator, and a turbine. Any one of these could become faulty, which can cause slipping when your transmission shifts gears. It can also keep the transmission from successfully shifting at all.
What RPM should a car drive at when accelerating? When accelerating your vehicle, it is best to stay within a 2000-2500 RPM range. This will give you enough power to reach an acceptable speed level while also ensuring the engine stays within safe operating limits.
Typically when the car will not accelerate past 60 MPH, it`s due to either the ECU activating a limp mode or other mechanical (fuel or ignition system component) failures.
Simply shift the car from park to reverse, or from park to drive, and observe what happens. If there`s a big clunk or the car seems like it`s lurching, this could be an early sign of transmission trouble.
Relevant Questions and Answers :
the most relevant questions and answers related to your specific issue
I just got a new transmission put in my car and it drives and reverse but won’t go up hill.
ANSWER : This may be a sign of a faulty transmission control solenoid. As you know, 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. I would recommend having an expert from YourMechanic come to your location to take the car for a test drive to more specifically determine the cause for this.
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.
I put my car in drive but it won’t go but it will go in reverse what could be wrong
ANSWER : Hi There,
What you are describing may be a result of a faulty speed sensor, potentially low transmission fluid or a even a faulty transmission control solenoid. As your vehicle travels down the road, the computer analyzes data being sent by vehicle speed sensors and engine speed sensors. Based on this information, the Engine Control Unit (ECU), or the Transmission Control Unit (TCM), executes the appropriate upshifts and downshifts by sending a signal to one of several shift solenoids. These transmission solenoids have spring-loaded plungers inside them, which are wrapped with wire. When this coil of wire receives an electrical charge from the TCM / ECU, it causes these plungers to open, allowing transmission fluid to flow into the valve body and pressurize the desired clutches and bands. When this happens, the transmission changes gears and you continue down the road. The computer controls the transmission solenoid in several ways. If the vehicle is equipped with a dedicated Transmission Control Unit, it can open or close the hydraulic circuit using a direct 12v signal. In some cases, the Engine Control Unit (ECU) can control the solenoid’s plunger by turning the ground circuit on and off. When this is not working properly, this can cause a jerking reaction, a delay in shifting or in some cases may cause the transmission to hesitate in shifting gears. I would recommend having a professional from YourMechanic come to your location to diagnose and inspect your transmission.
What you are describing may be a result of a faulty speed sensor, potentially low transmission fluid or a even a faulty transmission control solenoid. As your vehicle travels down the road, the computer analyzes data being sent by vehicle speed sensors and engine speed sensors. Based on this information, the Engine Control Unit (ECU), or the Transmission Control Unit (TCM), executes the appropriate upshifts and downshifts by sending a signal to one of several shift solenoids. These transmission solenoids have spring-loaded plungers inside them, which are wrapped with wire. When this coil of wire receives an electrical charge from the TCM / ECU, it causes these plungers to open, allowing transmission fluid to flow into the valve body and pressurize the desired clutches and bands. When this happens, the transmission changes gears and you continue down the road. The computer controls the transmission solenoid in several ways. If the vehicle is equipped with a dedicated Transmission Control Unit, it can open or close the hydraulic circuit using a direct 12v signal. In some cases, the Engine Control Unit (ECU) can control the solenoid’s plunger by turning the ground circuit on and off. When this is not working properly, this can cause a jerking reaction, a delay in shifting or in some cases may cause the transmission to hesitate in shifting gears. I would recommend having a professional from YourMechanic come to your location to diagnose and inspect your transmission.
The engine stalls when I put the car in reverse, but if I go past reverse into drive there is not an issue.
ANSWER : Hi there. Usually when you shift into reverse and engage the brake it will cause the engine RPM to drop; as it’s creating a load against the transmission and the engine. If the engine stalls, it may be caused by a faulty idle control valve, bad O2 sensors, or clogged fuel injectors.
In regards to the "pan", we’re not sure what you are referring, so it may be a good idea to contact one of our local professional mechanics to complete a battery inspection to determine what’s going on with your 2010 Ford Focus.
Won’t Shift into drive, 2008 Pontiac G8
ANSWER : Unfortunately, it sounds like you have an internal transmission problem that will require the transmission be rebuilt or replaced. A transmission that won’t go into any forward gear almost always indicates an internal mechanical problem as opposed to an electrical problem, like a sensor. I’m not sure if you have the 6L80E or 5L40E transmission, but my guess is that the problem is probably in the 1-2-3-4 clutch assembly. I suggest you have a professional, such as one from YourMechanic, diagnose the shifting issue firsthand, and advise you on the next steps.
Shifting from 2nd to 3rd, car stopped going fast. Now it won’t go at all.
ANSWER : It is possible that your clutch has failed. The sound you are hearing is likely due to the clutch not engaging with the engine due to it being worn. I would recommened having your transmission inspected by a qualified transmission expert to determine if your clutch requires replacement in order to resolve this issue. This inspection may require removal and partial disassembly of the transmission in order to verify that the clutch has failed.
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.
We have a new battery, new alternator, new coil pk, new master fuse and the car still won’t hold power.
ANSWER : Hi there. The only thing that I could think possible is causing your problem is that something may not have been correctly installed while your son was completing this maintenance. However, if your engine was difficult to start before this service, it’s possible there are different components that are damaged that simply didn’t resolve the issue. The only way of knowing what is going on with your Trailblazer would be to have one of our mobile mechanics in your area come to your location and complete a car is hard to start inspection.
