90 RX7 Convertible, Automatic Trans Problems.......Could use some advice
#1
06-17-2005, 08:48 AM
90 RX7 Convertible, Automatic Trans Problems.......Could use some advice
Hey Guys:
I could use some advice or a link to some pertinent articles/threads if anyone has any information concerning the following:
I recently changed the fluid and filter of my 1990 RX7 Convertible Automatic Transmission. Say, 3 weeks ago. The car was just fine up until a day or so ago. It seemed to be shifting a bit crisper than before. I am now experiencing...........
1) All Gears are able to be accessed with the Shift Lever, and car goes into all Gears (P, R, N, D, S, L)
2) Shift Indicator on Dash only shows "N", even when car is in Park.
3) While running and driving, the car starts off fine while depressing the accelerator for a second or so........then shifts into high gear. It takes forever to wind up and get going. Seems to reset itself at every stop light. This is a new problem, so for about 1-3 seconds when I first start off from a stop, I think the car is fixed.........then.......here we go again!!!!!!!!!!
Note that I had experienced this problem on previous occasions before changing the fluid and filter. A quick change down into "S" from "D" would solve the problem. Then I could switch back to "D". I didn't really think too much of it, as it happened very infrequently.
I have stopped driving the car, as it is a little dangerous not to have the get up and go to compete with a bicycle..........
I have checked the Vacuum Line that is attached to the side of the Transmission (Drivers Side......on Tail of Transmission, a bit in front of Speedo Cable) ....wiggled it around a bit to make sure it was snug.....and pushed it back on to make sure it was tight. ( Might I need to remove this, silicone it to make sure it is sealed and slide it back on?) It seemed that it was affixed properly when I first took a look at it. I also tightened the speedometer cable cover (Speed Sensor) at the Transmission as it seemed loose. Not really sure if that is the right Component name for what I tightened......sort of a thimble thing that went around the cable.....with a hex on one end...and knurled round on the other......it was leaking a bit of fluid.....so I gave it a quick turn.
Anywhey...........If anyone out there has any imput as to what I might be experiencing, I would surely appreciate any help or advice.........
and by the way guys......I know I ought to just yank the darn thing out and put the 5 Speed in.....but she is a daily driver, and I don't have the parts setting in my garage........plus I feel kinda lame having my Wife shuttle me back and forth to work.......LOL. Waiting on a ride sucks.......even if some good lookin chick is coming to get you......I just need to get it fixed quickly, so that I can access my options.........however, after reading through a lot of posts.....the 5 SPD sounds like the way to go.
Thanks for any help in advance!
John
I could use some advice or a link to some pertinent articles/threads if anyone has any information concerning the following:
I recently changed the fluid and filter of my 1990 RX7 Convertible Automatic Transmission. Say, 3 weeks ago. The car was just fine up until a day or so ago. It seemed to be shifting a bit crisper than before. I am now experiencing...........
1) All Gears are able to be accessed with the Shift Lever, and car goes into all Gears (P, R, N, D, S, L)
2) Shift Indicator on Dash only shows "N", even when car is in Park.
3) While running and driving, the car starts off fine while depressing the accelerator for a second or so........then shifts into high gear. It takes forever to wind up and get going. Seems to reset itself at every stop light. This is a new problem, so for about 1-3 seconds when I first start off from a stop, I think the car is fixed.........then.......here we go again!!!!!!!!!!
Note that I had experienced this problem on previous occasions before changing the fluid and filter. A quick change down into "S" from "D" would solve the problem. Then I could switch back to "D". I didn't really think too much of it, as it happened very infrequently.
I have stopped driving the car, as it is a little dangerous not to have the get up and go to compete with a bicycle..........
I have checked the Vacuum Line that is attached to the side of the Transmission (Drivers Side......on Tail of Transmission, a bit in front of Speedo Cable) ....wiggled it around a bit to make sure it was snug.....and pushed it back on to make sure it was tight. ( Might I need to remove this, silicone it to make sure it is sealed and slide it back on?) It seemed that it was affixed properly when I first took a look at it. I also tightened the speedometer cable cover (Speed Sensor) at the Transmission as it seemed loose. Not really sure if that is the right Component name for what I tightened......sort of a thimble thing that went around the cable.....with a hex on one end...and knurled round on the other......it was leaking a bit of fluid.....so I gave it a quick turn.
Anywhey...........If anyone out there has any imput as to what I might be experiencing, I would surely appreciate any help or advice.........
and by the way guys......I know I ought to just yank the darn thing out and put the 5 Speed in.....but she is a daily driver, and I don't have the parts setting in my garage........plus I feel kinda lame having my Wife shuttle me back and forth to work.......LOL. Waiting on a ride sucks.......even if some good lookin chick is coming to get you......I just need to get it fixed quickly, so that I can access my options.........however, after reading through a lot of posts.....the 5 SPD sounds like the way to go.
Thanks for any help in advance!
John
#2
07-09-2005, 11:06 PM
RE: 90 RX7 Convertible, Automatic Trans Problems.......Could use some advice
Ironically I just posted this in another topic. Although you seemed to slightly have the problem before you changed the fluid perhaps it compounded the problem?
ORIGINAL: Kyrasis6
I think that depends largly on what model you have and if it is a manual or automatic. Most mazda manual transmissions are built fairly the same and unless you have one from 83 or earlier the are all pretty strong. Most of the failed automatics I have heard of where probably from misuse and poor maintenance. The two I hear the most is "I always keep the fluid on full" and "I have never changed the filter in it so I has someone change it and it went the next week." These are the number 1 and 3 reasons why most automatics fail.
As fluid gets hot it needs room to expand, with the engine warm the tranny fluid should be BETWEEN add and full. If it is below add the fluid is too low and will get air into the system, if it is too full the fluid will aerate and foam which is just as bad as the fluid being too low.
The second problem I mentioned...
Automatic transmissions have dozens of extremely small passageways and filter screens. If a particle or a few particles a few thousanths of an inch big gets stuck into one of these the tranny may not function properly. My first one on the tranny dyno at school burned up because of 3 hairs that fell off of me into the tranny while I was building it. Automatic transmission fluid has many detergents in it. When the fluid has not been changed when it is suppose to be sludge starts to build up in the tranny, then when someone suddenly has it changed after years of not being changed the new fluid breaks down all the sludge and very quickly plugs the passages in the tranny causing it to fail rapidly. Not uncommonly on the way home from having it changed. Oddly enough if the fluid has not been changed in a really long time it is best to just leave it alone until it finally breaks down unless you want to pay to just have the tranny rebuilt.
I think that depends largly on what model you have and if it is a manual or automatic. Most mazda manual transmissions are built fairly the same and unless you have one from 83 or earlier the are all pretty strong. Most of the failed automatics I have heard of where probably from misuse and poor maintenance. The two I hear the most is "I always keep the fluid on full" and "I have never changed the filter in it so I has someone change it and it went the next week." These are the number 1 and 3 reasons why most automatics fail.
As fluid gets hot it needs room to expand, with the engine warm the tranny fluid should be BETWEEN add and full. If it is below add the fluid is too low and will get air into the system, if it is too full the fluid will aerate and foam which is just as bad as the fluid being too low.
The second problem I mentioned...
Automatic transmissions have dozens of extremely small passageways and filter screens. If a particle or a few particles a few thousanths of an inch big gets stuck into one of these the tranny may not function properly. My first one on the tranny dyno at school burned up because of 3 hairs that fell off of me into the tranny while I was building it. Automatic transmission fluid has many detergents in it. When the fluid has not been changed when it is suppose to be sludge starts to build up in the tranny, then when someone suddenly has it changed after years of not being changed the new fluid breaks down all the sludge and very quickly plugs the passages in the tranny causing it to fail rapidly. Not uncommonly on the way home from having it changed. Oddly enough if the fluid has not been changed in a really long time it is best to just leave it alone until it finally breaks down unless you want to pay to just have the tranny rebuilt.
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90, automatic, convertible, fluid, problem, rx7, shifting, slipping, strong, takes, time, trans, transmission, transmissipn, vert
