4r70w Cel P0743

[Glacier991]

410 - When I finally get my garage done, I'll post pics... but yeah, trannies on stands, trannies on supports. parts in the rafters etc.....

Section525 - And no there is nothing wrong with pulling one off your 99 and swapping.

As for the Tester: The trans tester will do a couple things. It will let you check your solenoids "In the car", for resistance etc.... it will tell you if the problem is harness, whether it is case harness or PCM harness. Plus it is kinda cool to shift the car from a box in the driver's compartment and to know everything works. Actually that is the strong suit of the tester.... it allows you to run a computer controlled trannie without the computer... that way if there IS a problem, you know if it is trannie, or inputs from the computer - and a lot of times trannies are rebuilt that are just FINE, it is the computer's fault (well actually not the computer mainly, it gets bad inputs and makes bad outputs - GIGO (garbage in, garbage out))... and after rebuild the problem shows up again and gets fixed before you even know it (odd stuff like throttle position sensors, speed sensors etc).

Name a time at Sac Metro at the AM/PM and I'll be there. We can work out whatever we need to on your return trip at that time. I am NOT sending a Rotunda trans tester to Mexico however <g>.

 

[Glacier991]

And for the record.... Section525 is dropping off a 4R70W and a 4405.... is all. ALL in the interests of science of course. (I know jack about transfer cases at the moment but plan Dairies on the 1354 and 4405 - a great way to learn). Plus, the "Save a Trannie Foundation" saw the pics of what he does to them and asked me to do an intervention.

 

[410Fortune]

Oooohh he said T case diaries!
They are MUCH more simple inside, hahaha

I have a 96 GT-40 engine and 4r70w now complete (the 150K mile unit I just pulled), just sitting there, looking at me....."use me in something, use me in something" it cries and the vultures (aka friends) have already started to claim parts...
I would love to rebuild and punch out the 5.0 and rebuild the trans myself, this time I can take my time doing so! hahaha I hope...

 

[Glacier991]

Well soon you will have a full 4R70W Diary too. I gotta tell you I am loving this trannie.

 

[410Fortune]

You are! hahahaha Oh baby after I got rid of my oem Mitsu 5 speed and tried to go Mazda 5 speed with the 4.0L (never did get the clutch to work 100%, i had 4 Mazda's under warranty, tried 6 clutch and flywheel combo's) I went A4LD. I knew what i was getting into with the A4LD but trusted my builder. Boat = too much for the A4LD. So in CA I went with a transwerx A4LD (in RangerX's wife truck now, works still) and then finally 5.0L.

The 4r70w drives and shifts 150% better then any other tranny I have had and it LAUGHS at the boat.

Me = HAPPY.

AOD-EW is the shiznit. I cant wait for a Baumman shift kit!

Now to put a dana 20 behind it......

 

[section525]

Alright G.. here's your parts ready to go. I should be rolling through Sacramento at about... 11AMish. Are you gonna be around? We're coming up 99.. so where's a place to meet? Or, I can drop it off at your house if you're not available.

 

[Glacier991]

I can meet you at the airport ARCO station at 11 if you like!

and WOW nice and clean, thanks.

 

[section525]

Okay.. my buddy should be here in Chico at about 900-930. Which should put us down there around 1030-1100. I'll let you know in the AM if we're running behind.

 

[Glacier991]

Just to end the suspense, they arrived, right on time, and I now have the diary project BW4405 TC and another 4R70W (albeit 2WD)... more fun. A special thanks to Section525.

 

[section525]

And 31 hours later I am in San Antonio. Thanks for the beeer!

 

[section525]

Problem fixed.




My three-year-old temp wiring job on the tranny harness finally gave up. This is what I found when I pulled the harness. Ooops.

 

[410Fortune]

did that fix the code?

May I recommend a soldering iron and some heat shrink?

 

[section525]

Let me take you back to November 7th, 2002. It was a cold and rainy day here in Northern California. I was laying under my truck in a puddle of water and tranny fluid. Things were not going good. I was scared. And lonely. I did what I had to do to get out from under the truck and into the warm comfort of my house. That's the best excuse I could come up with. It's soldered/tubed now!

 

[410Fortune]

hahaha I have seen/done worse in my day! I learned my lesson though....
but I understand about quick temp repairs, just dont wait 4 years to re-do them

let me know if the code goes away.

My 97 PSM does not seem to like my bank 1 sensor 1 or my DTRS
and both are new, wiring checks out.
I think my PCM is bad, needs a re-flash..........

As soon as I shift into reverse the P0743 code is thrown

 

[section525]

Yup. Code is gone. I've driven it 150 miles or so. Usually it would have came back on in 1 mile.

You're using a '97 harness on a '97 tranny?

 

[410Fortune]

yes 97 harness, 97 trans, 97 everything. You sold it to Brett didn't you?

this is the 97 GT-40p Mercury drivetrain with 53K miles on it

I have heard the 97 PCM's were recalled for setting flase 02 and trans codes, but I have been unable to confirm that so right now its just a rumor.

I replaced the DTRS when I first installed the drivetrain, no change. 02 sensor is new.
wiring checks out.

I ahve a couple other things to try as far as the 02 sensor code is concerned, but I dread having to take my BII to the dealer to try and fix the trans code. First off they look at my truck and go wow and then hell no we wont touch it, then once I explain to them it thinks its a factory 97 Merc and I actually know what I am doing it usually ends up costing about a weeks time and $500+