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One of the most neglected parts of any vehicle is the transmission. With today's high-tech automobiles, one
of the most common problems is computer malfunction or sensor failure. When one of these components fail
you may experience harsh running problems, jerking at 50 to 60 mph, erratic shifting, limp-in mode (second gear only),
or no shift at all. Sometimes it may be seen as if there is a miss in the engine when, indeed, it is the
transmission. The computer and sensors work together to make the transmission operate properly. Faulty sensors
(the most common problem) will send either a faulty signal or no signal at all to the computer, which will affect shifting
and internal pressure. If the pressure goes too low, it will burn the clutches and bands inside of the
transmission. If pressure is too low for a long period of time, internal damage, such as pump failure
or actual gear damage may occur. If you own a late model vehicle, it is very important to keep the fluid
clean by servicing every 40 to 50 thousand miles, depending on your driving habits. Having the vehicle
analyzed and diagnosed by a scanner to check for computer codes is a must to maintain proper
vehicle operation.
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Some examples of how complex vehicles are becoming:
In 1999 and up, Mercury Cougars, the speedometer doesn't work properly the first thing to
check is your radio!
Your late model GM luxury car won't shift, your CD player may cause malfunction.
If the brake light switch is not working in a Chevy or GM light duty truck, it will burn up the transmission.
Also, a bad ignition will keep the transmission from shifting.
Stuck in the snow with your Chrysler, don't spin your wheels to fast, your transmission will go into limp-in mode.
So, pay attention to the little things to keep your transmission in good operating condition.
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