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Re: transmission - how do you know it needs service
fluid should be a pink or red colour, no it should not make any noise....if you are hearing a whining sound its likely the pump caused my pumping max fluid pressure, ultimately the result of a bad PCS (pressure control solenoid)..very common fault on these transmissions and usually causes slipping,shuddering, poor shifting, and eventually it will go into fail safe mode and cause the internal pump to max out the fluid pressure, making the shifts very firm (if not harsh) and you will hear a whine. (this will reset after you switch the vehichle off)
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