handmedownreatta Posted October 28, 2022 Share Posted October 28, 2022 my trans is starting to slip in overdrive. Link to comment Share on other sites More sharing options...
padgett Posted October 28, 2022 Share Posted October 28, 2022 Try Seafoam Transtune. Cheap and won't hurt. 1 Link to comment Share on other sites More sharing options...
Barney Eaton Posted October 29, 2022 Share Posted October 29, 2022 I think the answer on which fluid to use is.... use the latest version. I am a firm believer of auxiliary transmission coolers, unless you live in the far North a cooler can extend the life of your transmission. Look at it this way........transmission fluid is going to a tank in the radiator to be cooled. How hot is transmission fluid if sending it to a 180 F radiator cools it? On my Reatta I completely bypassed the radiator and the auxiliary cooler does all the cooling because it is big and in ambient air that is below 100F. This also takes some load off the radiator. 1 Link to comment Share on other sites More sharing options...
handmedownreatta Posted October 29, 2022 Author Share Posted October 29, 2022 (edited) i have the 1993 riv cooler mounted but when i swapped the front sheetmetal i had to remove the jury rigged rubber hose setup i had.i have the hard lines too but it hard to figure how to reinstall them.let me clarify that...i have hard lines i think are for that.i so much crap around here. Edited October 29, 2022 by handmedownreatta (see edit history) Link to comment Share on other sites More sharing options...
padgett Posted October 29, 2022 Share Posted October 29, 2022 I use a 180F thermostat and bring all fans in by 190F. EVERYTHING under the hood lasts longer. My tow car has a trans temp readout. Have never seen over 195F. Being a Floridian, keeping things cool is important and AC works better. Link to comment Share on other sites More sharing options...
handmedownreatta Posted October 29, 2022 Author Share Posted October 29, 2022 21 hours ago, padgett said: Try Seafoam Transtune. Cheap and won't hurt. at 167 thousand i still want to change the fluid. Link to comment Share on other sites More sharing options...
Ronnie Posted October 29, 2022 Share Posted October 29, 2022 4 minutes ago, handmedownreatta said: at 167 thousand i still want to change the fluid. If the fluid smells burnt I would. If not I wouldn't. Sometimes changing the fluid will make it worse. I would try the Transtune first and see if it helps. 1 Link to comment Share on other sites More sharing options...
handmedownreatta Posted October 30, 2022 Author Share Posted October 30, 2022 the problem im having is going up steep hills in od it feels like the trans is bucking.not a problem in drive. Link to comment Share on other sites More sharing options...
padgett Posted October 30, 2022 Share Posted October 30, 2022 At low rpms that is often a secondary ignition problem. It will not set a code. Do you have a Magnavox or Delco (more powerful) ignition ? 1 Link to comment Share on other sites More sharing options...
Ronnie Posted October 30, 2022 Share Posted October 30, 2022 I agree with Padgett. Probably not a transmission problem. Link to comment Share on other sites More sharing options...
handmedownreatta Posted October 30, 2022 Author Share Posted October 30, 2022 the later one from a 90s car. Link to comment Share on other sites More sharing options...
Ronnie Posted October 30, 2022 Share Posted October 30, 2022 On older cars with weaker ignition systems, spark plug wires were the number one cause of stumbling under load at low RPMS. Link to comment Share on other sites More sharing options...
Barney Eaton Posted October 30, 2022 Share Posted October 30, 2022 handmedownre change the fluid. The trans cooler hard lines are in the Reatta/Riviera service manual..... it will show the routing. 1 Link to comment Share on other sites More sharing options...
EmTee Posted October 31, 2022 Share Posted October 31, 2022 On 10/29/2022 at 8:03 PM, handmedownreatta said: the problem im having is going up steep hills in od it feels like the trans is bucking. Maybe not the same, but I had a 2001 Century with that same symptom. I troubleshot ignition and the problem persisted. Following that, I decided to consider the transmission. Changed filter and fluid. I opened the old filter and found yellow metal. Showed a trans technician and he said there was only one component containing that stuff - planetary gear set. The car wasn't worth the cost of a trans rebuild, so I got rid of it... 1 Link to comment Share on other sites More sharing options...
handmedownreatta Posted October 31, 2022 Author Share Posted October 31, 2022 i can drive it without od if i have to.this may be related to my other problem.if i floor it off the line the car will run great up to about 50 and then spit and sputter.i think the fuel pump isn't putting enough out for full throttle. Link to comment Share on other sites More sharing options...
padgett Posted November 3, 2022 Share Posted November 3, 2022 Gauge on the fuel rail is easy. OTOH is common for a secondary ignition issue to show up there. Mode $06 test might help. Link to comment Share on other sites More sharing options...
handmedownreatta Posted November 4, 2022 Author Share Posted November 4, 2022 On 10/30/2022 at 9:20 AM, Ronnie said: On older cars with weaker ignition systems, spark plug wires were the number one cause of stumbling under load at low RPMS. i replaced them last year.new acdelco 1990s module.used coils. 3 hours ago, padgett said: Gauge on the fuel rail is easy. OTOH is common for a secondary ignition issue to show up there. Mode $06 test might help. ive checked the pressure at idle but im guessing the flow may be inadiquate.no idea what OTOH or mode $06 is. Link to comment Share on other sites More sharing options...
dship Posted November 4, 2022 Share Posted November 4, 2022 9 hours ago, handmedownreatta said: ....no idea what OTOH or mode $06 is. Me neither! Link to comment Share on other sites More sharing options...
padgett Posted November 4, 2022 Share Posted November 4, 2022 On The Other Hand often followed by On The Gripping Hand. Mode $06 is an extensive test sequence supported by Torque Pro and Good scanners. Toward the end it lists misfires by cylinder. 1 Link to comment Share on other sites More sharing options...
dship Posted November 4, 2022 Share Posted November 4, 2022 43 minutes ago, padgett said: On The Other Hand often followed by On The Gripping Hand. Mode $06 is an extensive test sequence supported by Torque Pro and Good scanners. Toward the end it lists misfires by cylinder. No offence but why not just explain to us uninformed folks the first time instead of having us guess/question.... just sayin' 1 Link to comment Share on other sites More sharing options...
padgett Posted November 5, 2022 Share Posted November 5, 2022 That was a test. Google is your friend. Ignorance is curable, stupid is forever. 1 Link to comment Share on other sites More sharing options...
Ronnie Posted November 5, 2022 Share Posted November 5, 2022 8 hours ago, padgett said: That was a test. Google is your friend. Ignorance is curable, stupid is forever. I guess I flunked the test. If someone made a post here in a foreign language, I wouldn't feel ignorant just because I wouldn't waste my time using Google to translate it into English. I think the same applies to the test. 1 1 Link to comment Share on other sites More sharing options...
padgett Posted November 6, 2022 Share Posted November 6, 2022 (edited) Sorry, I can never please everyone and just because I learned communications in the days of teletypes and morse code does not mean I need to learn jive (movie quote). Always thought Wired used non-contrasting colors to make it hard for older people to read. Guess I have trouble with what acronyms/abbreviations are acceptable. Always thought of OTOH in the same class as IAC, ECM, or ABS. Also was spoiled by teaching grad students. Edited November 6, 2022 by padgett (see edit history) Link to comment Share on other sites More sharing options...
Ronnie Posted November 7, 2022 Share Posted November 7, 2022 9 hours ago, padgett said: Guess I have trouble with what acronyms/abbreviations are acceptable. Always thought of OTOH in the same class as IAC, ECM, or ABS. I think any are acceptable but if you want the majority of people (like me) to fully understand what you are saying you have to keep it simple and just say what you mean. I agree OTOH is in the same class as ECM or ABS, but just saying "Mode $06 test" or OTGH is a little arcane for me to understand and I won't take the time to look it up. I just ignore it thinking at some point down the road I'll stumble across the meaning. I'm betting a lot of other people do the same. I try to make acronyms and abbreviations as simple to understand on my website as I can. I have a list of them on ROJ. If you see any of the ones that are frequently used in a post on my forum, like ECM for example, you will see them underlined in light green. If you hover your mouse over them for a second you will see a box pop up containing a short description of the acronym. I added OTOH to that list today. I don't know if anyone uses that feature on the ROJ forum or not but it is there. I thought it might help people new to the forum who may not be up to speed on the acronyms and abbreviations we often use. 2 Link to comment Share on other sites More sharing options...
padgett Posted November 7, 2022 Share Posted November 7, 2022 (edited) Interesting thought, guess I tend to be bothered by "I won't take the time to look it up." Of course I also wonder why anyone with a multi-thousand dollar 30 year old car refuses to buy a service manual. ps people who do not like my style are why I refuse to post on some forums. Edited November 7, 2022 by padgett (see edit history) 1 Link to comment Share on other sites More sharing options...
Ronnie Posted November 7, 2022 Share Posted November 7, 2022 20 hours ago, padgett said: ps people who do not like my style are why I refuse to post on some forums. You've helped me a lot over the years and I appreciate it. I always like reading your posts. Just sometimes I don't fully understand them. That might be as much my fault as it is yours. Link to comment Share on other sites More sharing options...
dship Posted November 8, 2022 Share Posted November 8, 2022 13 hours ago, Ronnie said: I always like reading your posts. Just sometimes I don't fully understand them. Ditto... Link to comment Share on other sites More sharing options...
Larry Schramm Posted November 8, 2022 Share Posted November 8, 2022 (edited) Vehicles of that era had issues with the coil packs going bad. Easy way to check the integrity of the coils is to purchase 3 of these spark testers. Remove one of the spark plug wires for each of the coils, put the spark plug wire on the tester top, clip the tester onto the coil tower and then start the car. If the car will idle for about 10 minutes without starting to miss or stumble, the coils and ignition system is fine. If it starts to miss/stumble, look at which tester is not sparking. That is the bad coil. There were two types of coils used in that era. The single coil pack made by Magnavox will require the complete coil pack to be replaced. The other style is three individual coils made by Delco are replaceable individually. You only need to replace the bad coil. Also when looking at the coil area, be sure to check the ground that is under the coil pack. Make sure you remove, clean, and retighten the surfaces on both ends of the wire. It will save you other issues. Edited November 8, 2022 by Larry Schramm (see edit history) 1 1 Link to comment Share on other sites More sharing options...
Larry Schramm Posted November 8, 2022 Share Posted November 8, 2022 Also, on transmission fluid, you can use any GM fluid that has a higher number than what was originally in the vehicle. You can use Dex 6 if you want to. 2 1 Link to comment Share on other sites More sharing options...
handmedownreatta Posted November 11, 2022 Author Share Posted November 11, 2022 How To Choose the Right Automatic Transmission Fluid for your Performance Car (motortrend.com) 1 Link to comment Share on other sites More sharing options...
handmedownreatta Posted November 13, 2022 Author Share Posted November 13, 2022 On 11/4/2022 at 10:45 AM, padgett said: On The Other Hand often followed by On The Gripping Hand. Mode $06 is an extensive test sequence supported by Torque Pro and Good scanners. Toward the end it lists misfires by cylinder. i searched for mode$06.im not sure that my actron cp9145 scanner does that.everything i saw said osb2.does $06 also work on osb1? Link to comment Share on other sites More sharing options...
padgett Posted November 13, 2022 Share Posted November 13, 2022 (edited) Just realized Torque Pro is for OBD II cars and the Reatta is ALDL (earlier). The onboard diagnostics are excellent but I also have an OTC2000 scanner with 1993 "All in One" cartridge and ALDL cable. Sorry. Edited November 13, 2022 by padgett (see edit history) Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now