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2002 MPV 5-speed Auto Trans with P752 and P757

Old 06-03-2006, 10:35 AM
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Join Date: Jun 2006
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Default 2002 MPV 5-speed Auto Trans with P752 and P757

I have a 2002 MPV with a 5-speed auto transmission. The vehicle works fine in 1st and 2nd, but free-revs in third gear. The check engine light is on with codes P752 (Shift Solenoid A stuck on) and P757 (Shift Soleniod B stuck on). Dealer indicated that a new transmission was needed at a cost of about $4,000. It sounds to me that I have a couple bad solenoids, short in tranny harness or bad transmision control module. Any help is greatly appreciated.


Old 06-09-2006, 09:25 PM
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Join Date: Jul 2005
Posts: 2,747
Default RE: 2002 MPV 5-speed Auto Trans with P752 and P757

It is possible nahumveach but much less likely that a solenoid or wire is the problem. If there were an actual short or open circuit in either of the shift solenoids A or B a code P0753 or P0758 (Shift solenoid A or B circuit malfunction (open/short)) would probably be set. The condition for either of these codes to be set is that the TCM or Transmission Control Module is seeing that the (Difference between actual gear ratio and measured gear ratio is too large). In other words the transmission output shaft to turbine shaft speed ratio is too great for that rpm in that gear so it thinks that the solenoid is stuck on and not allowing the shift.
In first and second gear both solenoids are turned on in order to obtain those gears. When shifting to 3rd the TCM turns off shift solenoid A to obtain 3rd gear. To obtain 4th gear it also turns off shift solenoid B and turns on C.
Maybe is too technical for what you need. A second opinion is always a good idea. These solenoids can be tested, measured, and operated to see if they are in fact working or not. A good, reputable transmission shop might be the place to go.
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