Automatic transmissions like any other mechanical component are subject to wear. All machines will eventually suffer deterioration. At some point, you may have to provide some level of repair or discard the item. New transmissions are put in new vehicle construction. All transmissions, even those from the dealership are used, rebuilt or remanufactured, but none are new.
Transmission Repair
Repairs are generally related to items that can be replaced without removing the transmission. The one exception would be the replacement of the front seal or an input or output shaft replacement. Generally, servos and all other seals and gaskets can be accessed with the transmission in the vehicle.
How Hard is it to Rebuild a Transmission?
Rebuilding a transmission requires R&R, removal and replacement. The unit is checked for wear and tear. One of the telltale signs of a problem is metal flakes in the transmission oil pan and dark burnt smelly transmission fluid, indicating breakdown due to excessive heat, usually caused by slippage of worn clutches and bands. Metal grit is one thing, chunks are another. Rings, seals and gaskets are replaced as well as bearings, bands and clutch disks. Gear wear is determined by inspection, and perhaps a planetary may need replacement. Rebuilds are carried out by a two-person team, the R&R mechanic who removes and reinstalls the unit, and the rebuild technician, in small shops both procedures are down by one person.
Remanufactured Transmissions
Remanufactured transmissions are rebuilt in an assembly line fashion or a specialist. You buy the transmission, and turn yours in as a core, to be sent to the remanufacturing shop to be rebuilt and placed in inventory. All transmissions sold through dealerships and parts houses are generally remanufactured. Indeed, remanufacturing of alternators, injection and carburation systems, oil and water pumps is common, and are cheaper but generally of sufficient quality compared to new parts where these items are available. Remanufacturing is a driving force in the transportation sector.
Used Transmissions for Sale
For automatic transmissions, there is as mentioned above, no new replacement. If a car is involved in an accident, many parts, particularly major components like engines and transmissions are salvageable. It is possible to obtain a low mileage unit substantially cheaper than a rebuilt or remanufactured item, but with no or a very limited warranty. As to the quality of remanufactured units, they strive for high standards, many defective returns will kill the market for their parts, so the remanufactures strive to maintain a high positive reputation for dependable products.
Transmission Troubleshooting, Diagnostics, Repairs & Rebuilds in Irving, Richardson, Garland, Mesquite, Duncanville, Farmers Branch, Balch Springs & Dallas, Texas
Rebuilding a manual transmission is limited to gaskets and seals externally and bearing and synchro rings. If a gear fails it will take out the whole transmission, making it prohibitively expensive to rebuild. Part of the standard transmission power train is the clutch. Worn clutches slip, may have metal on metal contact, bad for the flywheel, or the crankshaft to input shaft busing may need replacement. Transmission removal is a necessity for clutch repairs. Another item that wears and it is prone to fail is the throw-out bearing. This is a sealed bearing with no provisions for relubrication, and thus a point of failure for standard transmission equipped vehicles. A grinding or growling noise when the clutch is engaged indicates imminent throw-out bearing failure.
Gomez Transmissions can handle all your transmission related issues. Contact us today to solve them!
