Whilst modern gearboxes are in general very reliable, problems can occur and when they do, it can be costly to fix. That is why it is advisable to visit a gearbox and clutch specialist at the first instance of gearbox problems, as they are best equipped to deal with any issues you might have. This applies for manual as well as automatic transmissions, as most modern cars are controlled by computers, and require specialist attention. The longer you leave any problems, the more damage that will be done and the more expensive it will be to fix.
Whilst some problems that occur with you automatic transmission are extremely complex and have underlying causes, there are common gearbox problems that many vehicle owners encounter. These include a harsh or delayed experience when the gears are shifting, and that the gears are not staying in gear. Other problems include a loud noise emanating from the gearbox or a constant buzzing. There may also be clunking and clanging noises coming from underneath your car as the transmission automatically changes gear.
Before you take your car to a mechanic, read on for a basic understanding of automatic gearboxes, and you can speak to your mechanic as if you have knowledge on the subject, this might reduce the excessive charges that some garages charge even for simple repair work. There are good gearbox mechanics out there however, and if the problem is so serious that your gearbox needs replacing, a quality garage will offer you a warranty or guarantee on your new gearbox, so you can be sure that you will not have to pay out any more money.
There are many parts to an automatic transmission, however there are a few main components which are most commonly associated with gearbox problems. The Bell Housing is a conical part fixed under the car on or just behind the engine. Although automatic gearboxes require no gear changes, they are still in the car and are classed as either main or planetary gears. Fluid is vital to the running of any automatic transmission, it has to be the right type and at the correct level. And finally, the filter keeps the transmission clear as it collects any matter that is carried in the fluid.
In a recent study, issues with lubrication and fluid contamination made up 25% of all gearbox problems, automatic and manual. There are several reasons how fluid can cause issues for your transmission. The fluid might be dirty, caused by a build up of toxins and irregular cleaning. This can be resolved by checking the filter and replacing it if there is a build up of residue on it. Transmission fluid should also be replaced bi-annually to make sure that only quality lubricants are being used. The level of fluid in the gearbox might also need addressing as too little fluid can lead to noises coming from the gearbox. It can sound like a bigger problem and lead to more expensive work been done on your vehicle than is actually necessary.
Most of these problems are easily overcome and do not require spending too much money on them. Ensure that you visit a specialist mechanic as soon as you notice any gearbox problems and you will be available to enjoy your vehicle for years to come.