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Old 09-24-2012, 11:15 AM   #1
WhiteThunder
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2002 auto trans solenoid question

I've read a lot about solenoid A going bad. I had the same code as most everyone who replaced just solenoid A. I have completed that repair and still have the same symptoms (dropping into nuetral while in 3rd and 4th gear).
My questions is- do both solenoid A+B need to be replaced at the same time?
Or is there a remedy I may have over looked?


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Old 09-24-2012, 11:44 AM   #2
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Without plugging a diagnostic computer into the trans, it's mostly just shotgunning the common parts at the problem until it goes away.

Solenoid A is a common problem
Solenoid B is a common problem also
They do not need to be changed at the same time, but as soon as I need to do one of them, might as well do both at the same time.
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Old 09-24-2012, 12:07 PM   #3
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The code was 0750 so I assumed solenoid A was the problem so I replaced it
After resetting the ECU the check light came back on with in 10 miles of driving with the same 3rd-4th gear problem.
Besides the trans getting goofy at 45-50mph when the O/D is engaged . It shifts great and pulls great now with with O/D turned off
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Old 09-24-2012, 01:53 PM   #4
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Exclamation

Ok so I had the codes pulled again. Now it's solenoid B.. I suppose A+B should always be replaced at the same time. Now to find out if tithe part numbers are the same.
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Old 09-24-2012, 02:25 PM   #5
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I had the exact same problem....code po750 (2003 spi auto). Replaced the A solenoid and changed fluid and filter, and she's shifting fine now. If your B solenoid is bad, I believe that is code po751. Change it, and hopefully that will fix your problem, and yes, the part number for A and B is the same.
(XS4Z 7H148 AA)
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Old 09-24-2012, 02:35 PM   #6
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Thanks, I will be picking up the solenoid in the morning, I will post my results.
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Old 09-25-2012, 01:45 PM   #7
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Solenoid B has been replaced and white thunder has been restored to her former glory.
I believe it's a must to replace both solenoid A and B at the same time. It will save you time and money in the short and long term. A huge thank you to everyone who has posted about this problem. It's just as easy as everyone claims.
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Old 09-26-2012, 09:44 AM   #8
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Quote:
Originally Posted by WhiteThunder View Post
Solenoid B has been replaced and white thunder has been restored to her former glory.
I believe it's a must to replace both solenoid A and B at the same time. It will save you time and money in the short and long term. A huge thank you to everyone who has posted about this problem. It's just as easy as everyone claims.
Thank You for actually coming back and posting Your results when the work was completed.
So many new members come on,ask questions and are never heard from again.
Welcome aboard,Rep given.
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Old 09-26-2012, 10:16 AM   #9
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Thanks, now to address my new problem made a new thread for that
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