The transmission filter is there to keep contaminating particles out of the transmission fluid. However, if the filter fails to keep particles out, the transmission fluid will quickly reach a point where it is too dirty to do its job efficiently. If the contamination reaches a certain level, the transmission fluid can burn and lead to a transmission repair. Check the transmission fluid regularly, not just for its level, but to see if it is clean.
Normally your car should shift easily into each gear, but if your transmission hesitates to shift, then there is most likely an issue.
If you find that you are unable to change gears easily or you cannot change gears at all, a problem may have developed with the transmission filter.
In fact, the transmission filter may need to be replaced if the gears grind or the vehicle abruptly surges when shifting gears. When the filter has become blocked with the contaminants that it is designed to filter out, it can result in a burning smell.
This is a problem that can go from bad to worse very quickly. In extreme cases, it can result in the scary sight of smoke being emitted from the engine. If you have a feeling that there is something wrong, checking your transmission fluid will help you test out your concerns.
If the transmission fluid has changed from red to brown or yellow, this is a definite warning sign. If you notice varnish on the transmission dipstick, you may have a faulty transmission filter. Poor performing or low grade filters can allow dirt and harmful contaminants into the engine, causing harm to your car. To learn about other vehicle warning signs, visit our maintenance section.
Routine vehicle maintenance includes several different jobs your vehicle needs done to ope…. Learn how to choose the best tires for your lifestyle, how to fix a flat, signs of tire wear, and…. Our Glossary will help you learn automotive lingo and better understand each.
By submitting this form, you agree to the terms and conditions listed. By providing your mobile number, you will be signing up for Pep Boys text alerts. You will receive recurring autodialed messages to the number you provided. Message and data rates may apply. The cleaned oil in the lower chamber 3 is sucked through the tubular body 11 of the oil strainer 4, and through the suction passage 10 by a hydraulic pump not shown used for supplying fluid to a hydraulic control system. Thus, the oil strainer 4 extending to the entire pheriphery of the oil pan 1 provides a large filtering area for oil which is returned to the oil reservoir from the automatic transmission through the discharge port This embodiment is the same as the embodiment of FIG.
The screen mesh 6a is arranged in a zig-zag pattern as compared to the flat screen 6 of FIG. The outer periphery of the screen mesh 6a is secured to the inner side of the peripheral wall skirt 15 through a seal member 19, fabricated of rubber or other suitable materials compatible with the oil so as to prevent a bypass oil flow.
The seal member 19 is sufficiently high to cover both the upper and lower apexes in the zig-zag pattern of the screen mesh 6a. The zig-zag arrangement of the screen mesh 6a provides a greater filtering area for the same flow face area as compared with the embodiment of FIG. Therefore, the strainer of FIG. It will thus be seen that the objects set forth above, among those made apparent from the preceding description, are efficiently attained and, since certain changes may be made in the above constructions without departing from the spirit and scope of the invention, it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.
It is also to be understood that the following claims are intended to cover all of the generic and specific features of the invention herein described and all statements of the scope of the invention which, as a matter of language, might be said to fall therebetween. All rights reserved. Login Sign up. Search Expert Search Quick Search. Strainer for automatic transmission control valve. United States Patent A strainer for use on a valve body of an automatic transmission includes an enlarged filter area and is located in an oil pan under the valve body.
A strainer divides the oil pan into upper and lower chambers and has a central tube connected with a suction port of the valve body. Fluid discharged into the upper chamber of the oil pan flows down to the lower chamber through the enlarged filtering area of the strainer and is sucked into the valve body through the centrally located tube.
Taniguchi, Takuji Okazaki, JP. Click for automatic bibliography generation. Download PDF What is claimed is: 1. A strainer construction as claimed in claim 1, and further comprising a spacer member fixed to said suction port of said valve body, the upper end of said tubular body being fixed to said spacer member. A strainer construction as claimed in claim 1, wherein said strainer comprises a filter material arranged in a zig-zag pattern and a frame for securely holding in position the marginal edges of said filter material.
An automatic transmission as claimed in claim 4, wherein said connecting means comprises a duct sealingly joined at one end to the periphery of said opening in said filter means and at the other end to said suction port.
An automatic transmission as claimed in claim 4, wherein said filter means is substantially planar and horizontal. An automatic transmission as claimed in claim 4, wherein said filter means is substantially planar and zig-zag is cross section.
An automatic transmission as claimed in claim 4 or 5, wherein said oil inlet to said pan is above said filter means, whereby oil flows downward through said filter means and upward through said connecting means to said valve body.
Transmission fluid filter and method for manufacture thereof. Oil pump inlet screen assembly. This is often in an awkward-to-reach area and requires special tools, which is why you may opt to consult one of our mechanics about the proper times to change out the transmission filter and fluid for your vehicle and enlist him or her to do the job for you if needed.
These are the items that are generally included in a transmission filter kit:. Transmission Filter: The filter resembles a metal plate with slats, which is where the transmission fluid passes through.
Inside those slats is a fibrous medium, which catches any contaminants before the fluid reaches the transmission. Gasket: The gasket ensures a tight fit between the transmission filter assembly and transmission pan, so no fluid escapes while it is in circulation. It is held in place by an array of bolts around the perimeter of the pan or may be designed to simply pull off with a little effort.
These gaskets can either be made of cork or ridged rubber. Pickup Tube: The pickup tube, which connects the transmission filter assembly to the oil pump is also included as part of the kit.
Seal: The last part of a transmission filter kit is an O-ring style rubber seal that ensures a tight fit between the pickup tube and the transmission case. How a transmission filter works is a relatively straightforward process with few parts involved. Our certified mobile mechanics perform over services, including diagnostics, brakes, oil changes, scheduled mileage maintenances, and will come to you with all necessary parts and tools.
Our certified mobile mechanics make house calls in over 2, U. Fast, free online quotes for your car repair. How often to change a transmission filter Over time, bits of metal that have flaked off from metal-to-metal contact and other grit and grime can dirty a transmission filter.
These are the items that are generally included in a transmission filter kit: Transmission Filter: The filter resembles a metal plate with slats, which is where the transmission fluid passes through.
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