I just had my A4 rebuilt to handle to the extra power of a complete top end engine rebuild.

I had a shop do all of the work. I do not know who rebuilt the tranny as it was farmed out.

The question is this. Today I put it on a hoist to check for fluid leaks, etc. I've put about 500 miles on the car.

I noticed this.

There is bundle of wires with a quick connector exiting from the right side of the transmission (upper right side (passenger side)) that isn't attached to anything.

Note: Other than engine mods, the cats are removed. There aren't any other changes that I am aware of as to why this bundle of wires isn't attached to anything. Should it be.

Anyone know or if these wires should be attached to something or not? I can't believe these are testing wires exiting from the transmission.

The other issue is this. I specifically said that I wanted my transmssion back, since I had never raced it or abused it. Regular maintenance transmission fluid and filter change at 50K.

I didn't want some rebuilt piece of trash from another car or truck. The transmission was supposedly to rebuilt to at least Stage 1 standards along with a transgo shift kit.

But the tranny pan on this tranny has been repainted a crappy looking aluminum. I had never painted the pan on my original transmission.

I will ask, but if it was switched I am sure I will get the answer that it wasn't switched. Is there any way to match numbers to see if I got my original transmission back.

Or is it typical for rebuilders to grab a can of aluminum paint and spray the pan, even if it doesn't need to be painted? I would just as soon it was left the original color rather than a lousy aluminum spray job.

 

Uh dude, on a 4l60e, a "computer controlled," trans, yes that connector has to be plugged into a connector that sits right above the pan on that flat part. Do you have OD or 4th gear? There are several other GM non-computer trans out there. I would find it rather hard to believe that they just swapped in another trans tho. This is a round 20 pin connector that you squeeze the sides to come off? With an arrow on it, pointing down tworads the pan? A lot of people do end up chucking their 4l60e's for stronger 3 speeds but it would be more involved-at least if I was converting it for you I would charge you more for the adaptation. Weird.

 

Thanks for the reply.

On my first test drive, it wouldn't lock up until about 62-65 mph an hour. + it sucked about a half tank of gas for 65 miles. I had a vig 3600 tc installed also.

So I took it back complaining. I knew I would have slippage with a 3600 tc but not that much. I didn't think that I should have to get to almost 70 mph before the convertor would lock. So he kept it another two days trying to tune it. Now it has also thrown an Service Engine light also.

It appears to shift into 4th. With 3.73 gears it tachs at 2500 rpm at 70. With my 3.23 gears it tached at approximately 2100 rpms at 70.

I can't get the car high enough now to check what you said. But I can see a bundled set of wires with two connections on the right side that definitely are not connected to anything (but to what they should be connected I don't know).

I will put it back on a hoist tomorrow and have another look.

The person who did the install did charge me for 2 02 sensor exstentions and I can see that they are connected. Are there possibly other wires under the car near the transmission.

As I said the only mods underneath the car were the removal of the original cats and y pipe, tc, and rebuilt A4. Jethot lts and ory pipe without cats replaced the stock cats.

I did find a picture on this site with the engine and transmission of an a4 and what you describe is right on.

http://www.dxsoftware.com/magnus/

I am souring on the work done at this shop afte this. BTW, they also forgot to recharge the AC when I picked it up. It was blowing hot air.
Today when I checked fluids it was 4 quarts down on coolant, the engine oil is an inch overfilled on the stick, and the tranny fluid is a 1/2 inch overfilled on the stick, among other things.

 

It is probably the rear O2 senser plugs. The trans plug is round you can't miss it. If you had it tuned and they turned the back ones off, The wires are just hanging there.

 

Maybe they put in a 700R4 or other non computer controlled trans.

 

First things first, when you measured the tranny fluid that was "1/2," overfilled, when and at what point did you make that measurement? Totally cold? That would probably be ok. In order to make a somewhat accurate measurement you would have to have the care relatively level, and up to operating temp, after you cycled the gears. This system is dependant on heat, and cycling it thru it's paces in order to get an accurate reading. This mystery connector without a mate, describe it further. The main brain trans conn is a round 20 pin conn with an "arrow," pointed down. The O2's are square 4 pins. Speed sensor, oval three pin around the tail of the trans. This is not the space shuttle, everything does have a place in this vacinity, unlike the emsissions area up front that people like to dissenherit. More info on the car... what year, what mods, how many used condoms under the seat?

 

Doc

I checked fluid levels today. It was near 100 degrees out. The motor got hot very fast. I checked fluid levels twice. Once after driving and then again after a warmup.

I've checked the fluids on the car religeously since it was new and the oil level even after an oil change was never past the fill warm level, and the tranny fluid level same.

The wires which are hanging and not connected appear to be grey and square and both from the same loom. They very well could be O2 sensor connections if there are 4.

Since I found some pictures, I will use them as a guide tomorrow when I put it back on a hoist.

The car is a 98Z28 A4. Stage II heads, cam, lifters, rockers, pushrods, LS6 intake, tb,pulley,long tube pipes, ory pipe, no cats, Vig tc, rebuilt A4 with transgo.

Thanks

 

ah, ok no cats, OR pipe, square, then I would think that these are just O2 connections. You have two, L & R and two L & R back. Now if you have the OR pipe, no cats then you should have O2 simms plugged into the two back connectors. Didn't you have a SES code too? I would imagine that it was O2 related if a sim or actual O2 was not hooked up. I have reference books-shoot.

 

where are you ?