Trans-Cooler leaking...

[Stevo]

Yep. Guess if my car is gonna leak eveything the transmission should be next.

 

My transcooler is leaking at the line (which is a small blessing I guess). The only problem is that I cannot find a replacement part number for this and my parts catalog lists the 2 lines (Upper/Lower) (89-90,91-93/89-90,91 respectively). My car is a 93' and only 2 parts seem to be listed on GM Direct's website.

 

Any thoughts?

[Prospeeder]

go buy an auxillary trans cooler thats more powerful to prolong the life of ur tranny, there only like 60-70$ for one, u can get plate ones that are smaller and work better then tube and fin design

 

http://www.drawtite-hitches.com/transmisson_coolers/transmission_coolers.htm

 

EDIT: sorry, i thought u were saying the trans coler istelf was leaking, now i reread it says the line is leaking, schucks or napa or somthing would have the lines probably, its nothing special im sure

[Stevo]

Yeah ... Napa has transmission hose but not line. I'm not sure if I want to splice something in.

[THe_DeTAiL3R]

Yeah ... Napa has transmission hose but not line. I'm not sure if I want to splice something in.

 

Well, the kit for my tranny cooler basically just does that.. connectors from the rubber hose bolt into the stock lines. I'm sure it would hold more pressure than just cutting the lines and putting on basic clamps, however I don't think there is really all that much pressure anyways. I'd keep it in mind as plan B.

[5speedz34]

Yeah, those lines don't run huge amounts of pressure, and I don't know how difficult it would be to get metal lines in there to replace them because the DOHC doesn't have to much room.

[DaveFromColorado]

you can always pull the fittings off of each end of the cooler and take 'em up to Napa or Tractor supply or somethin' like that and have some custom trans cooler hoses made - and when you do that, you can get larger lines to allow a higher flow rate - that's what I've done in the past.

 

--Dave.

[Stevo]

you can always pull the fittings off of each end of the cooler and take 'em up to Napa or Tractor supply or somethin' like that and have some custom trans cooler hoses made - and when you do that, you can get larger lines to allow a higher flow rate - that's what I've done in the past.

 

--Dave.

 

Interesting. The lines would be one thing. I wonder if the fittings at the end are 'fixed' onto them.

[DaveFromColorado]

well I mean take the whole old line so they can match up the ends to put the proper fittings on the new hoses.

 

the hoses they make at those places will take 2500+ lbs of pressure (I know, we use 'em on the backhoe whenever the hoses break) and your trans cooler is nowhere near that pressure.

 

--Dave.

[Stevo]

I looked... not sure if the idiots who 'fixed' the system before cut out pieces.

 

=\

[DaveFromColorado]

well, take them what you have of the line ends, and a guess at how long you need the line, and they'll be able to fab somethin' up for ya.

 

--Dave.

[GnatGoSplat]

On mine I just cut out the leaking rubber hose, and used high pressure hydraulic hose on it held on with fuel injection clamps. The hydraulic hose was overkill (quite a bit better quality stuff than the original rubber), but it's what my friend at the autoparts store recommended.

 

Works great, no problems for 2-1/2 yrs.

[Stevo]

The bend in the line where the clamp holds it to the rad frame seems to be where the line rotted due to something holding moisture in there on the exposed line.

[Stevo]

OK ... went to GM parts direct because my parts catalog isnt doing anything for me.

 

Apparently theres 3 damn coolers for 93'. The only one NOT found was the one I have. I deduced that the part I need is the one that ISNT directly listed for my car and guess what. It is the right one. GM Parts direct has one line but not the other... wtf?

 

While making plans for a hose splice. I did notice that my water pump is dripping which means it's about to die. .... FUCK!!!

[Stevo]

Got the 2 lines in.

 

The return line was different from stock. Both original lines were rotted through. It was a bitch getting the top line off and installed since the tranny cooler is snug against the top of the rad cover.

 

I managed to get the lines in and everythings great. However I did'nt have enough time to look over the suspect water pump... I still think it could be a hose.

 

The only positive thing about the oil pump drive leak is the fact that the whole underneath of the vehicle including the engine has a thin layer of oil coating keeping things pretty much rust proof.

[GP1138]

That's one way to look at it.

 

I was gonna tell you to just cut it and splice some rubber hose in with good clamps.

[Stevo]

I WAS going to do that... but I did'nt have a line cutter and Canadian Tire's loan-a-tool program did'nt have one either. After some research I decided ... replace like with like.

 

So 2.5 hours and some hand degreaser later. Done.