01 SLE tranny cooler lines, which is the return? - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


2000-2005 Discuss your 2000-2005 Bonneville SE, SLE, and SSEi Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

Reply
 
 
 
Thread Tools Search this Thread
Old 04-17-2010, 04:12 PM   #1
Member
Posts like a V-Tak
Thread Starter
 
Maximus's Avatar
 
Join Date: Apr 2009
Location: Virginia
Posts: 59
Thanks: 0
Thanked 0 Times in 0 Posts
Maximus is on a distinguished road
Default 01 SLE tranny cooler lines, which is the return?

I've searched but didn't find anything. Perhaps my searches suck, I dunno. Anyway, which direction does the tranny fluid flow to the cooler, into the top and out the bottom, or into the bottom and out the top?

I've got a tranny cooler to install due to a lot of hilly driving with the carpool crowd and the tranny has been shifting harder when it gets hot.
Maximus is offline   Reply With Quote
Old 04-18-2010, 02:58 PM   #2
Senior Administrator








Certified Car Nut
 
Mike's Avatar
 
Join Date: Jul 2003
Location: Horseheads, NY
Posts: 15,645
Thanked 998 Times in 774 Posts
Mike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond repute
Default

Found it in the flow charts of the 95FSM. Should be the same considering most of our trans are the same. Looking at the lines on the radiator itself, the BOTTOM line is your SUPPLY, and the TOP one is the RETURN.
Mike is offline   Reply With Quote
Old 04-18-2010, 03:32 PM   #3
Retired Senior Admin

Expert Gearhead
 
Danthurs's Avatar
 
Join Date: May 2006
Location: Sheboygan Wisconsin
Posts: 29,661
Thanks: 0
Thanked 16 Times in 13 Posts
Danthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to all
Default

Should have the same flow as the engine coolant. Hot goes in the top, and cold comes out the bottom. Although I can't say for sure because I didn't see in my the trans service manual. Guess I better look again.
Danthurs is offline   Reply With Quote
Old 04-18-2010, 03:40 PM   #4
Retired Senior Admin

Expert Gearhead
 
Danthurs's Avatar
 
Join Date: May 2006
Location: Sheboygan Wisconsin
Posts: 29,661
Thanks: 0
Thanked 16 Times in 13 Posts
Danthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to all
Default

OK, I found it and double checked. From trans, hot oil goes to the bottom fitting on radiator, cooled oil comes out top fitting and returns to transmission. Just the opposite of the engine coolant flow.
Danthurs is offline   Reply With Quote
Old 04-19-2010, 08:43 AM   #5
Member
Posts like a V-Tak
Thread Starter
 
Maximus's Avatar
 
Join Date: Apr 2009
Location: Virginia
Posts: 59
Thanks: 0
Thanked 0 Times in 0 Posts
Maximus is on a distinguished road
Default

Thanks, guys. I did some googling and found similar info, top it is. Now, anyone have a tip for getting that top fitting off? After looking at it briefly Saturday I'm not sure there'* room to get a wrench on it.
Maximus is offline   Reply With Quote
Old 04-19-2010, 10:42 AM   #6
DINOSAURUS BOOSTUS

Expert Gearhead
 
BillBoost37's Avatar
 
Join Date: Mar 2005
Location: Enfield, CT
Posts: 41,391
Thanks: 0
Thanked 0 Times in 0 Posts
BillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of light
Default

f you pull the fan you should have good access to it.
BillBoost37 is offline   Reply With Quote
Old 04-20-2010, 03:15 PM   #7
Member
Posts like a V-Tak
Thread Starter
 
Maximus's Avatar
 
Join Date: Apr 2009
Location: Virginia
Posts: 59
Thanks: 0
Thanked 0 Times in 0 Posts
Maximus is on a distinguished road
Default

Thanks, Bill. I'll pull the fan if I have to. I can get a box end wrench on it if I disconnect the overflow hose at the radiator cap. Not much room to move it, but it may be enough. Took some wrenches out last night and tried it, but none of them fit. What size wrench do I need? I've seen tranny cooler line disconnect tools, do I need one of those or will a box end work? I know y'all know what the connector looks like, and to me part of it looks like it would take a wrench (a thin one that would slip in behind that round 'collar' part of the connector). Advice before I dive into this project some evening this week?

Last edited by Maximus; 04-20-2010 at 03:17 PM.
Maximus is offline   Reply With Quote
Old 04-20-2010, 11:03 PM   #8
Member
Posts like a V-Tak
Thread Starter
 
Maximus's Avatar
 
Join Date: Apr 2009
Location: Virginia
Posts: 59
Thanks: 0
Thanked 0 Times in 0 Posts
Maximus is on a distinguished road
Default

It is done, and I don't want to do it again.

Line was the easy part. Disconnect overflow hose to coolant reservoir. Pull the plastic 'collar' back off the fitting where the return line comes out of the radiator, sliding it back along the return line pipe until out of the way. Remove the retaining pin holding the pipe in the fitting and pull the pipe back and out. Easy peasy. My adventure begins there, having to make two trips to the parts store before getting the correct size replacement fitting (barb fitting, the one in the kit was too small in diameter and too long). The toughest, most aggravating part of all was hanging the damn cooler itself in front of the condenser. I have skinny arms but there was no way I was going to reach between the condenser and the radiator to get the zip strap tight. Even my skinnhy little 9 year old son couldn't reach them. So, I stuffed some ripped up padding from beside the radiator along the edges of the cooler, pulled the hoses snug to help hold it, and left it. Took it out for a spin and no leaks when I returned, and it didn't appear to have moved at all.

I think I need to invest in some really long forceps to reach those damned zip straps, not sure how I'd even get the retaining discs on them even if I could get to them with forceps, though.
Maximus is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Tranny and oil cooler lines 91 bonneville sse 1987-1991 6 02-10-2013 07:05 PM
tranny cooler lines TROYPORT 1992-1999 1 04-14-2008 02:05 PM
92 SSE, tranny cooler lines, intake sonoma_zr2 1992-1999 10 03-26-2007 03:37 PM
Brake Lines brake lines oh god brake lines disco_dotty 1987-1991 14 01-19-2005 08:38 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 03:19 PM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.