97 bonnaville surging with the torque convertor locked - Page 19 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

Reply
 
 
 
Thread Tools Search this Thread
Old 08-03-2005, 10:06 PM   #181
Senior Member
True Car Nut
 
Join Date: Jun 2004
Location: Glendale, AZ
Posts: 3,459
Thanks: 0
Thanked 1 Time in 1 Post
big_news_1 is on a distinguished road
Default

Thanks for setting me straight

Nothing like lecturing a guy, then find out you don't know your head from your hindquarters.
big_news_1 is offline   Reply With Quote
Old 08-03-2005, 11:29 PM   #182
Senior Member
Posts like a Supercharger
 
Join Date: Jul 2005
Location: Zimmerman, MN.
Posts: 198
Thanks: 0
Thanked 0 Times in 0 Posts
1fatcat is on a distinguished road
Default

Another thing about the stock tranny cooler...because the trans coils in the radiator are located on the passenger side, they are surrounded by the coldest of the coolant that is in the radiator. The radiator is a cross flow design and the passenger side is the "after cooling" side of the radiator. So the temp on that side of the radiator is much colder than the drivers side.

big_news_1, thanks for that very detailed reply! That realy helped me understand more of exactly WHAT the shudder is. By your definition, it most certainly is NOT an ignition misfire. What it is thou, I'm not sure?

I will try to find out what this COULD be, but I'm not very confident that I will turn up anything as I have never seen this type of tranny problem before. But in the mean time I can only suggest that adding auxillary cooling to the trans is the right thing to do in order to try to keep the temps down.

One thing for you to have checked thou is the flow rate of the stock trans cooler. Gallons Per Minute. To the best of my knowledge GM dealers are the only shops that have a machine that performs this test. If the stock trans cooler is restricted it will significantly reduce the cooling ability and result in overheated trans temps....even with auxillary coolers because the main cooler can't flow enough volume. I'll try to get some specs for you tomorrow on what the flow rates should be.

Also, try very hard to get your hands on a scan tool that reads trans temps and tell us what temp this is happening at. That would be very helpfull.
1fatcat is offline   Reply With Quote
Old 08-04-2005, 12:09 AM   #183
Junior Member
Posts like a Ricer Type-R
 
Join Date: Jul 2005
Posts: 11
Thanks: 0
Thanked 0 Times in 0 Posts
chcpman is on a distinguished road
Default

Hi

I have a laser temperature sensor at work... maybe I will borrow it one day and take some temperature readings. They are not that accurate but will give us a reading of several temperatures.

CHCPMAN
chcpman is offline   Reply With Quote
Old 08-04-2005, 01:48 AM   #184
Senior Member
True Car Nut
 
Join Date: Feb 2003
Location: Bloomington-Normal, IL 1997 SE
Posts: 3,734
Thanks: 0
Thanked 0 Times in 0 Posts
macho_mike21 is on a distinguished road
Default

Quote:
Originally Posted by big_news_1
When the ambient air temp is up in the 90s or more, my surging comes back when I'm going up long hills on the interstate. It ONLY happens when it'* really hot outside. Is it possible for a solenoid to be sensitive to heat like that?

Machomike- in the days and months leading up to your TC failure, what kinds of signs did your car exhibit that it was failing? Did you start to get the classic "slipping tranny" symptoms or did it merely surge until it finally threw the code? Also, did your gas mileage start to decline prior to TC failure, and were you running higher RPMs at any given speed than you used to? I'm just trying to gauge where I stand compared to your car. Thanks.
My TC will still work when it is in the 80'*. Before it threw the light I had the "slipping" occuring. Today however the TC did not lock up at all, I was running at about 2500RPM on the highway going 75MPH, which is high for me. It was also about 95* out. This caused my car to run at about 220* for most of the 15 mile trip on the interstate. This is not the first time that this has happened to me, I believe it has happened once or twice before.

I dont know if this is related or not, but when its really cold out in the winter my car will not shift into 4th gear until it is warmed up.
macho_mike21 is offline   Reply With Quote
Old 08-04-2005, 02:04 AM   #185
Senior Member
Posts like a Supercharger
 
Join Date: Jul 2005
Location: Zimmerman, MN.
Posts: 198
Thanks: 0
Thanked 0 Times in 0 Posts
1fatcat is on a distinguished road
Default

Quote:
Originally Posted by macho_mike21
I dont know if this is related or not, but when its really cold out in the winter my car will not shift into 4th gear until it is warmed up.
That is most likely normal as the computer will not enable TCC enguagement until the trans fluid reaches a certain temp. I'm not sure what that temp is though. I THINK it'* around 100-120 degrees F.
1fatcat is offline   Reply With Quote
Old 08-04-2005, 02:05 AM   #186
Senior Member
True Car Nut
 
Join Date: Feb 2003
Location: Bloomington-Normal, IL 1997 SE
Posts: 3,734
Thanks: 0
Thanked 0 Times in 0 Posts
macho_mike21 is on a distinguished road
Default

Quote:
Originally Posted by 1fatcat
Quote:
Originally Posted by macho_mike21
I dont know if this is related or not, but when its really cold out in the winter my car will not shift into 4th gear until it is warmed up.
That is most likely normal as the computer will not enable TCC enguagement until the trans fluid reaches a certain temp. I'm not sure what that temp is though. I THINK it'* around 100-120 degrees F.
no, like I dont have 4th gear AT ALL.
macho_mike21 is offline   Reply With Quote
Old 08-04-2005, 02:07 AM   #187
Senior Member
Certified Car Nut
 
Join Date: Oct 2003
Posts: 19,756
Thanks: 0
Thanked 0 Times in 0 Posts
1993 SLE is on a distinguished road
Default

usuallyehen pople are having TC problems the TC will work when cold but not hot..............
1993 SLE is offline   Reply With Quote
Old 08-04-2005, 02:15 AM   #188
Senior Member
Posts like a Supercharger
 
Join Date: Jul 2005
Location: Zimmerman, MN.
Posts: 198
Thanks: 0
Thanked 0 Times in 0 Posts
1fatcat is on a distinguished road
Default

Quote:
Originally Posted by macho_mike21
no, like I dont have 4th gear AT ALL.
OK, that is not normal. Any other hints or clues?
1fatcat is offline   Reply With Quote
Old 08-04-2005, 07:15 AM   #189
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

Mike you say it won't go at all. Are you sure it is not just delayed to get the temps up? My 00 truck specifically says it will delay shifting points to make itself heat up faster. I'm thinking you mention 75mph as fast for you and am wondering if you are not seeing 4th at 50-55mph.
BillBoost37 is offline   Reply With Quote
Old 08-04-2005, 01:40 PM   #190
Senior Member
True Car Nut
 
Join Date: Feb 2003
Location: Bloomington-Normal, IL 1997 SE
Posts: 3,734
Thanks: 0
Thanked 0 Times in 0 Posts
macho_mike21 is on a distinguished road
Default

it doesnt shift into 4th until the temp is around 150*. That means I have to drive at 50-60 until then. I know my TC is bad, I probably need a new tranny too (185,000 miles will do that).
macho_mike21 is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Torque convertor lock-up problems: Fixed kjhansen57 1992-1999 6 05-01-2008 02:55 PM
Converter locked, add throttle = surging BonneMeMN 1992-1999 15 04-16-2007 06:11 PM
What size torque convertor? PontiacDad Performance, Brainstorming & Tuning 8 02-12-2006 01:20 PM
0-85 vid...with warmed up torque convertor... harofreak00 Your Other Rides: Pics & Videos 35 08-29-2005 09:16 PM
New Torque Convertor Installed. Rogue General GM Chat 21 11-19-2004 12:15 AM


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 02:11 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.