Years ago, AGCO added automatic transmission repair to our list of services. I was amazed at how many folks came in for transmission repair. I was also amazed at how often the problem was actually something else.
Many people do not realize how a computer controlled transmission can give symptoms caused by other components. This prompted me to write, "How much is a rebuilt transmission." Clearly, an unscrupulous operator might easily take advantage.
This list is in no particular order, but demonstrates things we see everyday.
My engine races when I’m driving. A sticking fan clutch often makes the engine sound like it is racing.
The vehicle does not accelerate. A plugged fuel filter, plugged catalytic converter or bad fuel pump are often the problem.
The transmission wont shift to the next gear. Often an electrical problem, outside of the transmission.
The vehicle surges or bucks. Almost always an engine running problem. Misses do not feel like missing on newer vehicles.
The vehicle moves forward in neutral. Often this is linkage problem and the shifter is pointing at the wrong gear.
There is a vibration at 65 mph. This is almost always a wheel/tire or drive-shaft type issue and not a transmission problem.
I was told there is a code that says the transmission is bad. No code says a transmission is bad. Instead the code is an interpretation of a problem. Often a bad sensor, loose wire or even an engine running problem can set a transmission code.
This is where a full service shop, like AGCO Automotive can come to your assistance. In every case, AGCO is capable of correctly diagnosing and repairing the actual problem. Just as often actual transmission problems may also misinterpreted. The following list indicates a need for concern:
The vehicle will not move in one or more gears.
The transmission fluid is black, smells burned or is milky in color.
The transmission shifts hard or bangs into gears. This can also be an engine running problem.
There are strange noises from the transmission area, particularly if they change when changing gears.
The transmission is actually slipping. This means the tachometer rises and the vehicle does not accelerate.
In any of these cases it is best to quit driving the vehicle and bring it in immediately. A minor problem can turn into a major issue in minutes if the vehicle is driven when it should not be. Don’t take chances, tow the vehicle to a trusted shop, that can diagnose and repair the problem, no matter what the cause.