Shift Concerns: Soft/Slipping 3-4 Only (Automatic)
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_ Possible Component _ Reference/Action _
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_ 228 ─ ELECTRICAL ROUTINE _
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_ Powertrain Control System _ _
_ ∙ Electrical inputs/outputs, vehicle _ ∙ Run on-board diagnostics. Refer to Powertrain Control/Emissions _
_ wiring harnesses, internal transmission _ Diagnosis Manual. Use Rotunda Transmission Tester 007-00085 _
_ wiring harnesses, PCM, TP, EPC _ (part of Rotunda Transmission Tester Kit 007-0085D) and Rotunda _
_ _ 4R44E/4R55E Overlay/Cable 007-00106 included in the _
_ _ Transmission Tester Kit 007-0085D to perform transmission _
_ _ static and dynamic tests. Perform the following Pinpoint Test: _
_ _ E. Service as required, clear codes, road test and rerun on _
_ _ -board diagnostics. _
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_ 328 ─ HYDRAULIC/MECHANICAL ROUTINE _
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_ Main Control Assembly _ _
_ ∙ Screw out of torque specification _ ∙ Tighten to specification. _
_ ∙ Gasket damaged, off location _ ∙ Inspect and replace gasket. _
_ ∙ Separator plate damaged _ ∙ Inspect for damage. Service as required. _
_ ∙ EPC, solenoid stuck, damaged, O-ring _ ∙ Inspect for damage. Perform solenoid function test as listed in _
_ damaged or out of bore _ electrical routine. Service as required. _
_ ∙ Forward modulator valve/EPC boost valve _ ∙ Inspect for damage. If damaged, replace main control. If parts _
_ (207) pressure boost valve/main _ are missing, replace missing parts or main control. If _
_ regulator valve (208), 3-4 shift valve _ misassembled, reassemble properly. Do not stone, file or sand _
_ (215), extension housing lube orifice, _ valves. This will remove the anodized finish and may result in _
_ EPC blow-off valve, spring, damaged, _ further main control or transmission damage. _
_ missing, misassembled, stuck, bore _ _
_ damaged _ _
_ ∙ Wrong component used in rebuild _ ∙ Verify that proper components were used. _
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_ Overdrive Band Assembly _ _
_ ∙ Assembly band adjustment incorrect _ ∙ Inspect and readjust as required. _
_ ∙ Friction elements burnt _ ∙ Inspect for damage. Service as required. _
_ ∙ Cylinder damaged _ ∙ Inspect for damage. Service as required. _
_ ∙ Piston rod, lever, strut, missing or _ ∙ Inspect for damage. Service as required. _
_ damaged _ _
_ ∙ Cover, piston seals leaking _ ∙ Inspect for damage. Service as required. _
_ ∙ Case bore damage, leaks _ ∙ Leak test. _
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Добавлено через 4 минуты
Это из фордовского мануала по ремонту, т.е. возможных причин много, но в реальности то, присутствуют не все они, зачастую - только одна-две. Особенно, если обратился вовремя. Две штуки баксов с лишним, это цена капремонта с заменой практически ВСЕГО ливера на новые детали, кроме корпуса, и за такие деньги обычно дается гарантия тысяч на 10км пробега.