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Cattle Boards
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Ford 4r100 trans
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<blockquote data-quote="Atimm693" data-source="post: 1669629" data-attributes="member: 26138"><p>Really should put a scanner on it and see if the PCM is delaying the shift, or it is commanding the shift normally but the trans is delaying it. </p><p></p><p>There are some accumulator mods you can do. It's common for them to stick. </p><p></p><p>A trans manual will have a troubleshooting chart, and another that shows what holding members are applied in each range. Often whatever component is shared between ranges that are having issues is to blame.</p><p></p><p>Valve body and accumulator work can be done through the pan, no need to pull it.</p><p></p><p>The accumulator can certainly cause a hard shift, but I'm not sure that it would delay it.</p></blockquote><p></p>
[QUOTE="Atimm693, post: 1669629, member: 26138"] Really should put a scanner on it and see if the PCM is delaying the shift, or it is commanding the shift normally but the trans is delaying it. There are some accumulator mods you can do. It's common for them to stick. A trans manual will have a troubleshooting chart, and another that shows what holding members are applied in each range. Often whatever component is shared between ranges that are having issues is to blame. Valve body and accumulator work can be done through the pan, no need to pull it. The accumulator can certainly cause a hard shift, but I'm not sure that it would delay it. [/QUOTE]
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Ford 4r100 trans
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