the car chakes in reverse or 1st gear only.

i have peugeot 307 2007, the car chakes when i put tge geat to 1st gear or reverse gear although i recently changed the trany oil.

My car has 160 miles.
My car has an automatic transmission.

Experienced mechanics share their insights in answering this question :
There are a couple of possible issues. I am going to assume that the car shakes when you are accelerating in first or reverse, and not idling. If this is the case, it sounds like a driveline vibration.

First and reverse deliver the most torque to the driveline and therefore will magnify any problems. Check your engine and trans mounts. A worn or broken mount can shift the engine/trans out of alignment and cause a vibration. This could also be what you are feeling, sitting still and shifting to first or reverse.

If they are ok, you may have a bad axle, sometimes called a half shaft. The problem most likely lies in the inner joint, (closest to the transmission) of the axle. There are 3 sets of needle bearings. All it takes is some of the bearings to be broken or seized, and the axle will not rotate on center, causing a vibration. Look for torn grease boots for a clue. If you see nothing obvious, the only way to know for sure is to remove the axle, take it apart, and inspect it.

You could also just replace both if you can find no other problems. If you’d like to get this serviced or would like a second opinion on the matter, consider enlisting a qualified technician, like one from YourMechanic. They will be able to diagnose the vibrations firsthand and help you fix it accordingly. Good luck.

How to Identify and Fix Common car Problems ?

Our sources include academic articles, blog posts, and personal essays from experienced mechanics :

Shaking or vibration may be caused by many different things such as faulty spark plugs, poor fuel pressure or misfires. Other things such as a faulty idle air control valve may cause the engine idle to drop below the normal idling RPM which may also cause the motor to shake or vibrate more than normal.
It`s probably clutch related, for example due to worn out friction material and/or a pressure plate defect BUT it`s also possible that the motor mounts could be implicated and the engine as well if the engine is bogging down (due to an ignition, fuel, or air induction fault) under the load experienced when you start in …
Poor Quality Fuel. A major reason of vibrations in a vehicle is poor quality of fuel. Poor quality fuel usually has low levels of octane, because of a lack in octane, the engine tends to experience more load.
This is often a sign of low transmission fluid or a faulty transmission control solenoid. As you know, automatic transmissions use pressurized hydraulic fluid to change gears.
Some simple warning signs that the transmission is having problems: Transmission is slow to respond when shifting. Grinding, shaking, vibrating.
You usually notice your car shuddering because it feels like it`s vibrating. Your car will vibrate even when you`re not going very fast. The shuddering makes the car lag and is very noticeable. Some vehicles have a transmission temperature indicator that will let you know when your car`s transmission is overheating.
If vibration is felt at certain speeds, the tires may need to be balanced. If the tires are wearing unevenly and causing the car to vibrate, the driver may need a tire rotation. In some cases, the driver may need new tires to solve the problem of vibration.
In many vehicles a common cause of engine vibration is worn out or faulty sparkplugs. Worn out or dirty sparkplugs will cause the car`s engine to misfire or not properly fire on each and every cylinder. When this occurs, it is commonly referred to as the engine missing or not firing on all cylinders.
The most common reason is bad motor mounts. They are designed to stabilize the car engine while driving. That`s why disconnected or defective motor mounts will make your car shaking at idle. A broken timing belt can also be the reason for engine shaking.
Juddering in first gear is usually caused by wear or a pressure plate problem in your car`s clutch. Any leaks in the system may also get onto the surface of the clutch plate, which could also be the culprit.
If you begin to feel persistent shaking in your car, it`s best that you get to the problem right away before continuing to drive. Continuing to drive with the shaking can result in further damaging parts, ruining your tires, and other costly problems that could be avoided by a quick trip to your mechanic.
In a power transmission gear system, the gear pair assembly remains one of the major sources of noise and vibration in the system. The vibration of the gear transmission system is generated due to the fluctuation of the dynamic meshing force, which is affected by the time-varying mesh stiffness and errors.
If your car shakes when accelerating, the source of the issue can range from imbalanced tires to worn-out spark plugs, loose lug nuts, and more. Most of these problems can be handled with a quick (but possibly pricey) trip to the mechanic.
To help confirm that the vehicle has an engine speed related vibration, with the vehicle stopped, put it into park or neutral and raise the engine speed to the RPM at which the vibration occurred to see if the vibration can be reproduced. If reproduced, diagnosis should begin with engine speed related components.
The most common reasons for your car to excessively vibrate are a problem with your tyres, wheels, brakes, steering, suspension, axle or engine.
A vibrating motion can be oscillating, reciprocating, or periodic. Vibration can also be either harmonic or random.
In order to reduce vibration and improve the dynamic performance of the shafting, a flexible coupling is used to connect the engine crankshaft with the generator input shaft, which is composed of a spring and a damper in parallel.
The most common cause of the shaking most often happens near your tires and rims. The tires and wheels connect your vehicle to the road, and if anything is a bit wonky, will notice. It may be something like a broken transmission or a broken control arm.
Potential causes of a vehicle shaking at idle include a loose gas cap, loose battery cables, a worn throttle sensor, a damaged engine mount, or bad spark plugs. Perform a general inspection of your engine bay to look for damage. If you can`t repair the problem yourself, take the vehicle to a mechanic.
Your car shaking while idling is another sign your car needs an oil change. Old or dirty oil thickens and does not allow the oil to do its job of lubricating the engine parts. This metal friction can create vibrating or shaking if bad enough during the ride.
Judder is a phenomenon wherein friction induced torsional vibrations are generated in the driveline because of sliding contact between clutch and flywheel, during engagement. These resulting oscillations inherit the first resonance frequency of the driveline.
If the caliper or caliper pistons become stuck, it is unable to properly squeeze the brake pads against the rotors, which may cause you to feel some vibrations when you hit the brakes.
Any unusual shaking or vibrating forces coming from the engine is cause for concern. It could be something as simple as old spark plugs producing an uneven power delivery, it could be something serious like worn or broken engine mounts, or it could be even more serious in the case of internal engine damage.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

My manual car won’t go into gear, it turns on and the clutch goes down perfectly fine. It happened after my gears grinded, the car
ANSWER : If the clutch mechanism is releasing properly, and the shift linkage is not malfunctioning, your transmission will have to be removed from the vehicle and inspected. Once a transmission has been removed from a vehicle, if the problem is a broken or worn part or parts, and the transmission has 100,000 miles or more, the most cost effective approach is to just simply rebuild the whole transmission. There are transmission rebuild kits that are sold just for this purpose. Rebuilding a transmission is no big deal and is indeed easier in many respects than rebuilding an engine. You can rebuild your transmission right in your own garage. You can NOT rebuild an engine in your own garage due to the highly specialized, and extremely costly, machine shop equipment required. Occasionally, mobile mechanics will take on a transmission rebuild job especially as once the mechanic removes the transmission from the vehicle, it is just simply a modular unit that can be easily transported to a mechanic’s shop and rebuilt right there and then returned to your vehicle. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.

When shifting into 1st gear and attempting to take off, car shakes and then stalls. Car also won’t let me shift into reverse.
ANSWER : Hi there. Either the shifter rail is damaged inside the transmission keeping the gears from going into reverse and the first gear from connecting all the way, or the transmission first and reverse gears are damaged causing the transmission to have a hesitation on the forward 1st gear and no reverse. I recommend seeking out a professional, such as one from Your Mechanic, to help you diagnose your transmission shifting issue.

car hesitation in 1st and 2nd gears , its totally fine in higher gears . hesitation means light jerks , what’s the issue?
ANSWER : Hi there. You may be having an engine misfire since it is only when you are accelerating. The misfire may be due to worn spark plugs or the ignition system coil failing. The ignition system includes the spark plugs, wires, and coils which need to be checked for signs of failure. I recommend having the engine completely diagnosed and scanned for codes to see what is causing the misfire in the engine. You may only need a tuneup or may need more ignition components. I recommend having a technician, such as one from YourMechanic, inspect for trouble codes and replace any failing components.

the car chakes in reverse or 1st gear only.
ANSWER : There are a couple of possible issues. I am going to assume that the car shakes when you are accelerating in first or reverse, and not idling. If this is the case, it sounds like a driveline vibration.

First and reverse deliver the most torque to the driveline and therefore will magnify any problems. Check your engine and trans mounts. A worn or broken mount can shift the engine/trans out of alignment and cause a vibration. This could also be what you are feeling, sitting still and shifting to first or reverse.

If they are ok, you may have a bad axle, sometimes called a half shaft. The problem most likely lies in the inner joint, (closest to the transmission) of the axle. There are 3 sets of needle bearings. All it takes is some of the bearings to be broken or seized, and the axle will not rotate on center, causing a vibration. Look for torn grease boots for a clue. If you see nothing obvious, the only way to know for sure is to remove the axle, take it apart, and inspect it.

You could also just replace both if you can find no other problems. If you’d like to get this serviced or would like a second opinion on the matter, consider enlisting a qualified technician, like one from YourMechanic. They will be able to diagnose the vibrations firsthand and help you fix it accordingly. Good luck.

Car won’t go into gear. 2002 Audi A4 Quattro
ANSWER : Hi there – Your symptoms describe the behavior to expect when your clutch hydraulics go out (clutch master and clutch slave cylinders). Check your clutch fluid level – it may be low. If the fluid level is low, this usually means your clutch slave cylinder has worn out, not unusual with your mileage, and should be replaced. I recommend a malfunctioning clutch inspection performed by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose this problem, give you an accurate assessment of damage and cost estimate for repairs.

The car doesn’t shift into first gear while it works fine in reverse
ANSWER : The problem could be that the internal transmission pump is weak, or the transmission clutch seals are leaking. It sounds like the transmission will need an overhaul.

I recommend having a transmission mechanic test the pressures and diagnose the problems to verify whether you need an overhaul with a new torque convertor.

trouble getting car out of 1st gear , sometimes into 1sr gear aswell
ANSWER : Hi there. Typically this issue is caused by a malfunction within the clutch system. In some cases, it can be as simple as the clutch pedal being out of alignment or needing to be adjusted. Sometimes however, it can be an internal component; such as a master or slave cylinder that is not fully engaging. I would recommend having a professional mobile mechanic come to your location if possible to complete a car is hard to shift inspection first. This will allow the mechanic to find the source of your issue and recommend the right repairs be completed.

Car won’t move. I can start the car but when I put the shifter in 1st, 2nd, 3rd, ect. The car will not move.
ANSWER : The transaxle is not engaging internally to the axle shafts inside the transaxle or you have one or both axle shafts disengaged from the transaxle. The fact that the speedometer moves when gear is engaged and clutch is released shows the speed sensor in the transaxle is getting turned.

You will need to have the vehicle raised and the axles inspected for broke or stripped shafts. If the axles do not have anything visually wrong with them then hold one wheel and try to turn the other wheel while transaxle is in gear, with engine off, to see if the wheels are locked together. When you spin one wheel the other wheel should turn in the opposite direction. If it does not then the problem is in the transaxle differential gears and the transaxle would need to be removed and disassembled to find the broken internal components.

If you need some assistance with this, consider YourMechanic, as one of our mobile technicians can come to your home or office to diagnose your acceleration issue and help make the necessary repairs to get you going again.