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Tranny replacement or Selenoid replacement

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Tranny replacement or Selenoid replacement

 
Old 01-16-19, 08:55 PM
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Default Tranny replacement or Selenoid replacement

Whatís everyoneís experience with this?? I am willing to purchase selonoid packs & do the labor myself. My grandpa is a retired mechanic & he believes this will save me money. But Iím worrying Iím going to throw money in one place when it would have been better going to a different fix.

Weíre going to inspect the fluid and check for ď metal in the panĒ ourselves. I took the car to a transmission shop the first week I purchased it & was told they were going to drop my pan change my filter and fluid, n when I picked it up was told everything was fine... ďno metalĒ. Car drove great for about 4 months other than once where it kind of stalled at a stop light ( something Iíve also read is common with these cars ) check vsc light started coming on week later check engine light. I was taking a 900 mile trip soon , so I checked this at the tranny shop I went to just to be safe. Get a call back saying the engine code was the 5th gear selonoid & when they dropped the pan it ďlooked like motor oil & was full of metalĒ. I was not going to pay them 3000 to replace it because I just couldnít believe my car went from prime condition to needing a new tranny in 4 months... got second opinions they all said the same thing. My grandpa is the only one wanting to do selonoid replacement. I held off for another few months finally my car stops shifting past 4th.

Iíve read mixed things. Some people say changing selonoids worked some people said even replacing the tranny didnít work... also Iíve read somethings about resetting the computer ďreflashingĒ it I think.. is the only place I can do this is the Lexus dealer??

Id also like to mention my car was wrecked in the front when I purchased it( clean title luckily & my interior isnít melting as bad as Iíve seen many thatís why Iím determined to save her ). Iíve seen many people having electrical issues after wrecks. This is another reason Iím worrying changing selonoids or tranny wonít stop the check engine / vsc light.
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Old 01-17-19, 10:09 AM
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Do search on some of my posts on fluid change and troubleshooting. Used to rebuild transmissions years ago. These are not known for making metal so if in fact the pan was loaded beyond a little fur on the magnets, you best be looking for used low mileage trans with a warranty.

Valve body repairs like replacing solenoids is not going to fix it if the fluid burned, there is metal in the pan, if it slipped and/or the engine flares. These all imply damage occurred.

Did you see the pan contents ever?
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Old 01-17-19, 01:05 PM
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Originally Posted by 2013FSport View Post
Do search on some of my posts on fluid change and troubleshooting. Used to rebuild transmissions years ago. These are not known for making metal so if in fact the pan was loaded beyond a little fur on the magnets, you best be looking for used low mileage trans with a warranty.

Valve body repairs like replacing solenoids is not going to fix it if the fluid burned, there is metal in the pan, if it slipped and/or the engine flares. These all imply damage occurred.

Did you see the pan contents ever?

I never saw them myself , no. My grandpa & I are planning on droppin the pan this weekend to see n I can let you know the results. I never noticed the tranny slipping jerking or anything indicating the tranny was goin out until it stopped shifting past 4th , the tranny mechanic that said ďmetal was in the panĒ took it on a test drive said it was almost unnoticeable but the car was getting ďstuckĒ in 5th.
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Old 01-17-19, 03:37 PM
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How many miles?
Do a search by user and include valve body should find some good posts on how to diagnose and test certain failure modes.


Do keep in mind there is no dipstick on this so throwing the pan on and topping off are not a 10min job.
Read up as you need software or jumper the OBD port and do some button presses to measure the oil temperature.
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Old 01-17-19, 04:38 PM
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Heck, try the solenoid first. If that doesn't solve the problem, nothing lost. If it does, just just saved yourself a bundle of dough!

Go Grandpa!
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Old 01-17-19, 10:51 PM
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If you have shavings in the pan, you probably have worn out clutch packs.
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Old 01-18-19, 06:35 AM
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Originally Posted by 2013FSport View Post
How many miles?
Do a search by user and include valve body should find some good posts on how to diagnose and test certain failure modes.


Do keep in mind there is no dipstick on this so throwing the pan on and topping off are not a 10min job.
Read up as you need software or jumper the OBD port and do some button presses to measure the oil temperature.
My car has 157k now. Iím going under it to drop the pan , isnít that also where I can access the selonoids?? Thatís what makes me think itís worth a shot to try at least testing the selonoids kill two birds with one stone while Iím under there. Iíve read other 250 owners experiencing tranny problems around 150k also... is that just what I need to expect in the replacement trans?
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Old 01-18-19, 06:38 AM
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Originally Posted by DennisMik View Post
If you have shavings in the pan, you probably have worn out clutch packs.

That being the case the best option would be replacing the whole tranny?
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Old 01-18-19, 12:00 PM
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Let us know the result of the pan drop and fluid check. If metal is present, I'd source a good, used trans.
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Old 01-18-19, 01:04 PM
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Originally Posted by DennisMik View Post
If you have shavings in the pan, you probably have worn out clutch packs.

Do keep in mind that just like dry mechanical clutch, wet discs turn to dust too and most remains in circulation to be pickup at the filter.
It's the metal that falls out of suspension and fills the pan.

That said it would have been nice to see the pans contents as most shops want to sell you trans. It's how they make $,$$$.
I wrote how to test the solenoids in other threads find them and read up. There is more to it than ohming them but that is the first step.

More likely is something else has failed in the valve body.
I'm on mobile device which is a PITA to search or I'd pull up the threads. They have a layout of the valve body and a link to the A760E.PDF telling you how the thing works!
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Old 01-18-19, 01:33 PM
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Originally Posted by Gville350 View Post
Let us know the result of the pan drop and fluid check. If metal is present, I'd source a good, used trans.
Iíll post an update when weíre finished.
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Old 01-18-19, 01:45 PM
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Originally Posted by 2013FSport View Post
Do keep in mind that just like dry mechanical clutch, wet discs turn to dust too and most remains in circulation to be pickup at the filter.
It's the metal that falls out of suspension and fills the pan.

That said it would have been nice to see the pans contents as most shops want to sell you trans. It's how they make $,$$$.
I wrote how to test the solenoids in other threads find them and read up. There is more to it than ohming them but that is the first step.

More likely is something else has failed in the valve body.
I'm on mobile device which is a PITA to search or I'd pull up the threads. They have a layout of the valve body and a link to the A760E.PDF telling you how the thing works!

Right... I learned my lesson on that one if a shop canít show me thereís a chance theyíre trying to pull one over on me. Thatís why Iím at least interested in seeing what it looks like with my own eyes , lol. Iím on mobile too & am having a hard time finding them. Hey I did read my check engine codes & itís saying p2724. Googleís telling me ďpressure control e stuck onĒ... what does this have to do with the fifth gear selonoid as the mechanic called it??
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Old 01-19-19, 12:33 AM
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“pressure control E stuck on”

A solenoid opens and closes hydraulic passages inside the transmission.

The letter E is the 5th letter of the alphabet. You are having problems with the 5th gear.

Car makers sometimes use strange terminology.
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Old 01-19-19, 05:09 AM
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Originally Posted by DennisMik View Post
ďpressure control E stuck onĒ

A solenoid opens and closes hydraulic passages inside the transmission.

The letter E is the 5th letter of the alphabet. You are having problems with the 5th gear.

Car makers sometimes use strange terminology.

!! lol strange but I feel silly for not being able to put that together on my own , thanks.
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Old 01-23-19, 03:49 AM
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Itís been rainy here so we havenít dropped the pan yet, but I do have an update. I found another shop that specializes in trannys that was about 5 minutes from my house this whole time.... stopped in for a new opinion. This man plugged in this computer now my check engine light is off AND my car is shifting into all of its gears ( it was only going to fourth before this ). Thatís leading him to think itís not the selonoid & something in the computer.
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