These transmissions can be found in the following vehicles however you should double check your application with the 16 bolt pan count and square shape. The TH700-R4 was found in the full range of General Motors vehicles including, Buick, Cadillac, Chevrolet, GMC, Oldsmobile, Pontiac. If you are unsure of your model, the 700R4 will have a square wire plug with 2-4 wires, which are only for the lockup in the torque converter. The 700-R4 and its variants were in production from 1982-1993 and can be identified by the square, 16 bolt oil pan and 4 forward gears. These are the parts that the top shops use for all transmission fluid service changes. Filtran OEM quality transmission fluid filter.However, if the front seal is causing the leak, it will likely increase your repair cost quite a bit since the mechanic will need take out the transmission first to get to it.High quality fluid filter and pan gasket kit for the GM 700R4 automatic transmission. On average you can expect to pay anywhere from $100 to $250 for the repair job. If you have an automatic transmission that is leaking fluid, the cost to repair the leak will depend on where the leak is coming from. Even the aluminum or steel material won’t be strong enough to prevent this. However, if it were to get damaged because of excessive heat exposure, the line will eventually crack and then it will leak transmission fluid. The transmission’s fluid line is made to be durable because it is constructed from aluminum or steel material. The seals will then leak transmission fluid.Īny of the seals could be leaking this fluid, including the shifter housing seal, plug seal, tail housing seal, output shaft seal, and so on. The seals will eventually get to the point where they will get worn out and crack from all this long-term heat exposure. The only problem is these seals are constantly exposed to heat as the transmission is in operation. The transmission seals of an automatic transmission keep the hydraulic pressure in-line. If you discover your transmission pan is the source of your leak, replacing it is usually the best option. It may cause a dent or crack in the pan which you may not even be aware of. In fact, the pan itself could get damaged if you were to get into an accident or accidentally run over a large rock that your transmission pan can’t clear. However since the pan is attached to the transmission via fasteners and likely has at least one drain plug, a leak can easily occur if any one of these parts were to become loose or damaged. The transmission fluid pan in most cases will last the lifetime of a vehicle. If the pump were to get damaged, then it would either cause the fluid to stop circulating or it would cause the fluid to leak from there.Įither way, you will definitely have a big problem on your hands that needs to get fixed fast. The torque pump is what circulates the transmission fluid throughout the entire transmission system. What may start off as a tiny crack will likely get worse unless this gasket is replaced. If the gasket were to get damaged or cracked, then it will cause transmission fluid to leak out. This component is what prevents transmission fluid from escaping as it is transferred into the transmission from the pan. The mechanical seal which rests in between the pan and the transmission is called the transmission pan gasket. 1) Bad Transmission Pan GasketĮvery automatic transmission vehicle has a transmission pan which stores the transmission fluid. To help you spot exactly where the leak is coming from, here are the most common locations of automatic transmission fluid leaks. If you see transmission fluid under your car, you need to take it seriously and fix the leak immediately. This red fluid is typically associated with transmission fluid although old or burnt fluid will be more of a brown color. The most obvious sign of a transmission leak is if you notice a small puddle of redish fluid underneath your car where the transmission case is. However, you could still lose this fluid if a leak were to occur somewhere in the transmission system before the regular transmission fluid change interval. You can normally wait until you drive anywhere from 60,000 to 100,000 miles before you need to change your automatic transmission fluid.
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