Question about 2008 Mercury Milan

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Shift solenoid transmission

How do I know that I have to change the shift solenoid transmission or change the whole transmission? Another important question is in the dealer they made me buy a transmission computer for 900 dlls then they said it was the transmission too not only the computer. Do they have to change the computer if the car was doing exactly the same thing after they installed the computer?

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Thats the dealer for you you can scan the codes if it says shift solenoid thats what id change i have had good luck as a tech doing so

Posted on Jul 10, 2013


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1 Answer

Do i need to take the whole transmission to change the shift solenoids in a 2002 lincoln continental

No you don't need to pull transmission, you drop the pan off the transmission and the shift solenoids are attached to the valve body. Measure the fluid you take out and put back in the same amount, DONOT OVERFILL THE TRANSMISSION, IT CAN DESTROY IT. Check the fluid level hot.

Jul 15, 2016 | 2002 Lincoln Continental

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I have a new shift solenoid for it, do I need to drop the whole transmission to replace it or just the pan?

Just the pan usually . How do you know which solenoid ? There are five of them inside . Normally when one goes out it sets a check engine light an a DTC - diagnostic trouble code .

Nov 05, 2015 | 2001 Hyundai Santa Fe

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How to switch OD on? What coukd be the possible reason why it switch to OD off? Thanks!

It could be a loose connection on the shift, have seen this b4 ,mainly on 4WD'S, maybe due to rough & corrugated roads, however, without knowing the full story, I would say a solenoid /sensor on the transmission. Imported cars, Take your cheque book, most Aussie cars, 150 / 300 $bucks, depending on your mechanic.. You can purchase a plug in code error scanner, ( $100 / $ 1000 ) the cheaper unit wont give you the exact solenoid, but will direct you in the general area of problem, & useful for the whole car / truck/ etc. The solenoid activates a valve in the transmission ,The valve maybe stuck, .Recommend replacing it once pin pointed........K

Nov 09, 2014 | 2008 Mitsubishi Pajero 3.2

1 Answer

How do i fix a po757

Hi there:

DTC P0757 MAZDA - Shift Solenoid B Stuck On

The P0757 code is detected when the ECM has detected a mechanical fault with the solenoid energized, valve stuck on.

Shift solenoid valve B is turned ON or OFF by the Transmission Control Module (TCM) in response to signals sent from the park/neutral position (PNP) switch, vehicle speed and Engine Control Module (ECM) (throttle opening). Gears will then be shifted to the optimum position. When the a transmission solenoid is stuck on, in most cases the problem is not the electrical part of the solenoid; the problem is foreign material obstructing the mechanical function of the solenoid or the flow of the fluid through the transmission valve body. If the transmission fluid is very dirty, it is recommend changing the transmission fluid and if possible removing the transmission pan for further diagnosis. Excessive debris or metal particles on the transmission pan could be an indication that there is a transmission mechanical failure and that the transmission will need to be rebuilt or replaced.

Possible causes:

- Low transmission fluid level
- Dirty transmission fluid
- Faulty shift solenoid B valve
- Shift solenoid B valve harness or connectors
- Shift solenoid B valve circuit is open or shorted

I suggest ask your dealer about the folow TSB...

Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa, have a nice day.

Jul 03, 2012 | 2002 Mazda MPV

3 Answers

My 2002 envoy this morning was having transmition problems.. 2 days ago it felt like the car was struggling, I didn't drive anywhere yesterday and today on my way to work it stopped shifting gears the...

Sounds like you may have a shift solenoid sticking.First thing i would do is change the fluid and filter in the transmission.Graphite build up causes problems like this.

Dec 06, 2011 | 2002 GMC Envoy

2 Answers

My check engine on and code p0741 is coming up and dealer says i need a whole new transmission.


There are several possible causes for this code. Yes, it COULD be that there is damage inside the transmission that will require transmission removal and overhaul. However, I have fixed this code a number of times by simply replacing the shift SL solenoid which is mounted externally on the transmission housing.

I would recommend taking your car to a shop that specializes in transmission repair and get a second opinion.

Sep 16, 2011 | 2006 Toyota Corolla

1 Answer

My 2001 jeep cherokee sport 4x4 transmission is failling, It didnt want to reverse unless i increase rpm's up to 5 or 6,000, then it skipped from 1st shift to 3rd shitf, also it shifts above 4,000...

The reverse to me sounds like the bands are slipping as far as the shifting the only thing i could think of would be either the electronic modulator or a shift solenoid.

May 31, 2011 | 2001 Jeep Grand Cherokee

2 Answers


  • What has happened is your transmission solenoid pack has gone bad. Not to worry, this is an easy fix.

  1. You need to purchase a transmission solenoid pack and a gasket.
  2. You can take your chances with a salvage yard or you can get one off of e-bay for about half of what the dealer will charge you or you can go to the dealer.
  3. Pop your hood and look on the top of the transmission. That little black box is the transmission solenoid.
  4. Clean the area around the solenoid real well with a shop rag.
  5. Remove the connector hooked onto the solenoid.
  6. You may have a linkage to pop off.
  7. Now remove the long bolts holding it into the transmission.
  8. Now wiggle the solenoid out.
  9. Reverse to finish.
  • That's it. Real easy fix for this vehicle.

Regards, Tony

Apr 27, 2011 | 2002 Dodge Grand Caravan

1 Answer

Shift solenoid

The solenoid comes out with one screw and one wire connection once the pan is dropped.

May 10, 2009 | 1997 GMC Jimmy

1 Answer


You have a shift solenoid problem, it will probably have to be replaced, it will require taking off the transmission oil pan (draining trans oil), I recommend that you leave this task to a repair shop, it is a little tricky to do and it is very important that the inside of the transmission stays very clean. I hope this helps you, please let me know

Apr 11, 2009 | 2004 Hyundai Elantra

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