Thanks.... I don't know which one was tested... so here we go... If happen to come across that Tim would you drop it here?
Thanks..

That's right there are three. Are you planning on doing this yourself or the mechanic? Either way I would recommend changing all three of the solenoids the filter and a new gasket at the same time. I'm sure you can actually buy all those as a whole kit. If you do it yourself the only ***** is getting all the old gasket maker off if the mechanic used that. Get a gasket instead of that gasket maker. It will make your life much easier if you need to pull the pan again. Scraping that shit off takes longer than the the rest of the job.

Transmission Filter Replacement - YouTube


This is how you pull the pan and filter.

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Thank you for that suggestion.

I think i will do just that. As of this week all 3 of them are still available.

Thank for that!! looks like a good watch!

I'm going to do this... I wont be doing this myself. I need to rely on the dealer... it's been a dealer maintained truck since i drove it off the lot for the first time.

Hopefully that will be the end of your problem! You should request the condition of the pan magnets for peace of mind. They give you valuable information on wear and tear and if any major mechanical issues are present. I love seeing clean magnets!

I hope so also.... and after this i have to go back to the other dealer and have them look at my 4wd as it stopped working also.. they fixed that but it only last half of the winter.I threw a lot of money at her over the past few years.. i'm not quitting.

All,
After getting prices for my solenoids i asked what the charge would be to install them. I was informed that they don't do transmission work. They said something about if the parts were replaced(solenoids) "pressures" would change and that could damage my Transmission and if that happened then they would have to deal with that..
This sound normal to anyone?

What it really sounds like is you need to find a new shop. Changing out the solenoids will not do any damage to your transmission. That is a flat out lie.

The solenoids can be bench tested, I'll see if I can find the FSM page for it. Basically, you give each solenoid 12v to check to see if they are opening and closing. The second test is for Ohms (should be between 11-15 ohms). The third test is to pressure test them (apply 71psi to see if they hold and don't leak air). Based on what they've told you so far, I bet that they didn't even test the solenoids.

Find a shop that will actually diagnose the solenoids following the FSM or you could just replace them to rule that out.

What year and trim level is your 4R? I have a 99 4WD A/T ECU sitting on my shelf from my donor truck but as others have mentioned, the ECU is almost never the issue.

Here:

Screenshot_20230510-074020_Drive.jpg - Google Drive

Screenshot_20230510-074032_Drive.jpg - Google Drive

Screenshot_20230510-074046_Drive.jpg - Google Drive

I agree.... A lot of dealers here in NY really don't like to mess with older trucks."well if something ELSE breaks while we're in there then we are married to THAT problem as well" is what i was told. since i said that the indie guys are almost as expensive well you get the point.

They tested one solenoid(at the time i didn't know there were 3 of them) and it tested "good" I went to check prices and was told on the side that the techs there "really don't have experience to deal with older trucks" I was suggested to go to the bigger shop further away..

i have a 97' SR5 and yes i believe that from i've been told the ECU is almost never the issue.
Thanks for the information and the offer.

Thank you very much for this added information!!! Very Detailed.

Yes, lots of folks have changed solenoids on here. I personally have not, but I changed them if I had issues.

I agree your local shops seem to be terrible in your area. It's such a shame.




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Exactly! The only thing that's been supposedly confirmed is the harness and resistance of one out of three solenoids. All it says he really did is check for debris. It would have taken five extra minutes to pull them all out and test them correctly. That's the easiest part.. I'm sure that code could be thrown if one of the other two solenoids aren't functional..