Gear box problems

Gear box: It is the place where the different "gears" of the cars are located.
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Gear box hits so hard

Chevrolet Epica 2011 gear box 168000 miles
Hi. I have an epica 2011 it runs so weak. But the main problem is that on the third and 4th and on. Anr backward it always hits so hard. Pleade give an idea. Thanks
jankhot m from other 3 years ago  
JA
2 replies 
jankhot m from other 3 years ago
Hi. I changed the TCM and still have the same.
Tonyray from Nigeria 2 years ago
Check engine and gearbox mount or seat also check if brake fluid is moving to and from the engine system to your Hub where ABS is connected. When ABS cable with brake fluid gets blocked it cause such problem.
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Gearbox failure when stopping

Chevrolet Epica 2007  169000 miles
I have an Epica LT 2007 and, at the moment of stopping at a traffic light for example, the gearbox hits and it feels as if the speed got stuck. I was told the failure is in 3 solenoids or sensors that are located in the valve body of the transmission. Is it true? I wold appreciate your help.
HONEY from United States 8 years ago  
HO
1 report 
sanford from United States 8 years ago
Buddy, do a maintainance to the valve body of the transmission. It might not be the solenoids anyway. I recommend you to scan the vehicle to see which failure is indicated, and also check the transmission computer that is on top of the pedals and only takes two screws and two connectores. Remove it and take it to be verified.
amos from United States 8 years ago
Change the oil to a synthetic one and you will see that it gets better with time.
silla from United States 8 years ago
You need to replace the radiator with an original one, as if they are generic, they do not cool the same way or even its internal coil does not have the same pressure or flow capacity.
Christiana from United States 8 years ago
I have the same problem with my car and, when scanning it, it was indicated that the Stop Neutral sensor is damaged.
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The gears is hard to this engage

Chevrolet Epica 2004 Transmission  150000 miles
The gears is hard to this engage
Savo from Canada 3 years ago  
SA
1 reply 
Savo from Canada 3 years ago
I no you no some much about the car
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Gear box jumping out

Chevrolet Epica 2009 2l 6 speed automatic diesel  45000 miles
Had epica 2 months drove fine then got in when warmed up just reved no gear turn key off start again drives 6 foot comes out of gear been to four Garage’s all gave different diagnosis’s when plugged into computer it’s says sensor failure but t garages say it needs new gear box frustrated ?
Carlos from United Kingdom 5 years ago  
CA
3 reports 

Failures caused by the winter SolvedSolved

Chevrolet Epica 2008  150 miles
When starting the winter, the 4th gear is set directly. If I change it to manual, the 2nd and 4th gears can be set but it taked long to accelerate.
Egbert from United States 9 years ago  
EG
Rank 2
1 report 
Sanford from United States 8 years ago
Buddy, try scanning your vehicle. It is possible that the MAF sensor is damaged. Such failure is indicated by the following codes: p0101 p0102 and p 0103. The three of them work together. Hope it helps you.
Solved
Best answer (according to Egbert)
Egbert from United States 8 years ago
I finally solved my problem, Sanford and, effectively, it had to do with the MAF sensor. There are 3 wires that reach this sensor, and one of them was internally broken.
Dadzeban from Nigeria 3 years ago
I have difficulty starting my 2009 chevy epic. Any help?
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Gearing failure SolvedSolved

Chevrolet Epica 2007  157000 miles
Hello, my Epica has been inactive for almost two years because it has a failure that no one has been able to solve yet. Its problem is that, when setting the first gears, revolutions raise almost to the top and then suddenly drop. When this happens, the car hits really hard; so much that, when it does, the yellow engine light turns on, not allowing me to accelerate, losing power and driving almost neutral. I need to turn it off and start the engine again so that it continues working properly. I really need some help.
SCOTTIE from United States 9 years ago  
SC
1 report 
randall22 from United States 9 years ago
Have you scanned your car?
SCOTTIE from United States 9 years ago
Yes, randall22. My vehicle was scanned but no error code was indicated.
Solved
Best answer (according to SCOTTIE)
levone from United States 9 years ago
What you need to do is to service the throttle body, and it will definitely get better: 1- remove the battery. 2- take out the MAF sensor, blow it and apply some spray for cleaning the carburator. Disconnect the thick hose that goes from the throttle body to the engine and clean it with the same spray, including the two little holes. 3- clean deeply the throttle body's turning device so that it has a better mobility when opening and closing. If you are able to remove the whole throttle body, that would be the ideal thing. You need to replace the air filter as well and clean the ducts that lead to the MAF sensor. You then wait for the spray to dry and try starting the engine. Please tell me if it worked. Hope it does!
SCOTTIE from United States 9 years ago
levone, after taking the car to many different mechanics, the last finally found the problem and, effectively, it was the throttle body. It was dirty, he cleaned it and the strong hits and engine light disappeared. The only bad thing now is that it slowly hits when setting the reverse, just as when I decelerate it at 12 mph. Even though they are lightly felt, I am worried it can get damaged again. I was told that, as I drive it, the soft bumps will disappear. The only thing the mechanic told me I can do now is to buy a new throttle body. Is it expensive? Thank you very much for your comment, you were right.
amos from United States 9 years ago
Change your oil to a synthetic oil for automatic transmission and you will see how it gets better.
Kevin from Ireland 4 years ago
I have 2008 Chevrolet Epica and appear to have some kind of electrical fault. A few months ago I could hear the passenger door making a sound as if it was trying to lock or unlock when I used the central locking fob. The doors did lock so no problem i thought. Now the doors lock while driving especially when I indicate, the central locking button in the car no longer works and the doors seem to have a mind of their own - locking or unlocking. When I use the fob to lock the car, it will lock and then unlock itself, i do this a few times and it will remain locked. Any help ?
Tizoo from other 6 months ago
Iha Epica 2008 car is Holding Winter mode can you help me ?
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Stalls when warm

Chevrolet Epica 2004  125000 miles
Hi, I bought an Epica with 78000 miles and, for almost two months, the car worked without any problems. The battery was then depleted and so I replaced it with another one in good state of 55 amperes. Some days later, a failure appeared: the vehicle starts working properly but, when reaching a temperature of 80 degrees, it stalls. After some minutes, it starts working again, but only but some meters, and it stalls once more. When contacting the car, the fuel indicator does not raise, until it cools down. It has been scanned and the ECO failure was indicated, referring to the automatic transmis… Read complete
Ibby from United States 9 years ago  
IB
1 report 
dosia from United States 9 years ago
Good night, I have three Epicas and all of them have had your same problem. What you need to solve it is to clean the injectors and change three little wires from a sensor that is located on top of the engine. It is a failure that appears every 50000 miles. Hope it helps you.
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Once Drive jerk winter lights on taking too much acceleration run slow

Chevrolet Epica 2008 2.0L 150000 miles
I have epica 2008 model, it was working properly, but once early morning I start and run its jerk there is winter light becomes on, and after that, it's taking too much acceleration but running very slow. I changed 3 gearboxes but the problem is the same. Can anyone face this problem and got a solution please let me know.
Kashif from other 2 years ago  
KA
6 reports 
Epica les from United Kingdom 2 years ago
Qaqa babindi men de de eyni problemdir
Rakan from United Kingdom a year ago
I have the same problem if you have fixed the issue please tell me how
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