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88, NA, AT
Has stopped shifting. When I accelerate, the rpm's will quickly redline. I can drive a slower speeds to avoid redlining. However when driving at those slower speed, it seems as if the car slipped in to neutral until I press the gas harder.
Thanks in advance88 N/A A/T
85 N/A M/T -
88 NA, Automatic trans shifting
Yes, You may have lost the shifting module, or it could be low on automatic trans hydraulic fluid.88fairlady;337838 wrote: 88, NA, AT
Has stopped shifting. When I accelerate, the rpm's will quickly redline. I can drive a slower speeds to avoid redlining.
However when driving at those slower speed, it seems as if the car slipped in to neutral until I press the gas harder.
Thanks in advance
After, checking it out carefully, please write back. I have just removed an automatic trans from my 88 in good working order and installed a 5 speed.
If you need a trans, please write me back and I will offer you a decent price + Shipping 814.882.1175
I live up north halfway between Buffalo, NY and Cleveland, OH and could have it there in 2 days
Pdfflyer -
You won't find many good answers here, almost everyone will tell you to 5-speed swap
Anyway, narrow down the problem a little, is it engaging and slipping or disengaging? Could be the torque converter isn't locking up (low fluid, low pressure due to contaminants..)
How does the fluid look/smell? Is it brown with dark or light flecks in it? Does it smell acrid like something burnt?
Are all the sensors and plugs good? Bad electrical contacts = bad feedback = bad operation… do the ASCD troubleshooting flowchart per fsm as well
When was the last time it had any servicing (fluid/flush/filter) ? -
I will try and narrow it down. I Will check everything you said and also provide a video.... Changed fluid in March/AprilPdfflyer;337848 wrote: Yes, You may have lost the shifting module, or it could be low on automatic trans hydraulic fluid.
After, checking it out carefully, please write back. I have just removed an automatic trans from my 88 in good working order and installed a 5 speed.
If you need a trans, please write me back and I will offer you a decent price + Shipping 814.882.1175
I live up north halfway between Buffalo, NY and Cleveland, OH and could have it there in 2 days
PdfflyerIf i turns out I need one I will pm you
G-E;337855 wrote: You won't find many good answers here, almost everyone will tell you to 5-speed swap
Anyway, narrow down the problem a little, is it engaging and slipping or disengaging? Could be the torque converter isn't locking up (low fluid, low pressure due to contaminants..)
How does the fluid look/smell? Is it brown with dark or light flecks in it? Does it smell acrid like something burnt?
Are all the sensors and plugs good? Bad electrical contacts = bad feedback = bad operation… do the ASCD troubleshooting flowchart per fsm as well
When was the last time it had any servicing (fluid/flush/filter) ?
Thanks88 N/A A/T
85 N/A M/T -
Years back my sons car had similar issue and was leaking fluid. Found the control valve module (don't remember exactly where it was cause this was 5+ years ago) Removed the part and replaced the O rings which I bought from a hardware store and the problem was solved. Very simple job. The O rings keep the fluid in the proper chambers for shifting thru the gears. When they leak crazy stuff happens.
My 88 FSM shows this starting on page AT-32
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