C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Auto Trans. problem on my 87

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Old Apr 23, 2010 | 10:20 AM
  #1  
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Default Auto Trans. problem on my 87

Hi All,

This must be my turn to have a bad month with my trusty 87. All my idle problems are solved. Received just the right help from the forum and I thank everyone for all the help.

Just today I went to park on a slight incline and the A/T will not engage the parking pawl/dog. The lever goes where it is supposed to but not park lock. In fact when the lever is pushed all the way forward to the park position it is still in reverse. Any ideas will help. I don't have factory manuals. I am hoping it is an external problem and not an internal tranny issue.

Thanks,'

Don
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Old Apr 23, 2010 | 11:18 AM
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I don't think it is a internal issue. Check the linkage and cable I would bet something came lose.
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Old Apr 23, 2010 | 12:05 PM
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Go to any parts store, open manual and read about cable adjustment. I guess it is 10 min job.
search internet.
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Old Apr 23, 2010 | 02:11 PM
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The shifter bracket attached to the transmission with the 17mm bolt has an adjustable stud that the cable attaches to. If your console reads park and the tranny is still in reverse, you will need to loosen the stud and slide it toward the front of the car. That will put the tranny in park.
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Old Nov 17, 2010 | 01:55 PM
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I'm having this same exact problem right now. Any additional information that you guys know of would be helpful.

For me it started out that when i put it in park the car would still roll! I was like what the world

Then just the other day it has now gotten worse. When i put it in park the car goes into reverse! I have to put it in neutral, turn the car off, put it in "park" and then apply the ebrake to stop he car from rolling down a hill!

So there is a cable on the side of the transmission that can be adjusted to fix this?
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Old Nov 17, 2010 | 03:54 PM
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anyone had this before?
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Old Nov 17, 2010 | 09:01 PM
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Originally Posted by Dr.Huxtable
anyone had this before?
Read post 4 and crawl under the car.
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Old Nov 17, 2010 | 09:55 PM
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happened to me, it was the cable which got replaced and worked fine since then
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Old Nov 18, 2010 | 12:08 AM
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alright sounds good i'll see if i can adjust it and if not replace it!
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Old Nov 21, 2010 | 10:13 PM
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Originally Posted by 383vett
Read post 4 and crawl under the car.
Didn't work. and the bolt size you mentioned wasn't right either. It was a 15mm, maybe you were thinking of a different year. Anyway the arm that is on the transmission is non adjustable. The cable is adjustable but BARELY. You can slide it forward and back maybe a quarter of an inch. So it still wouldn't go into park but i was able to adjust it enough to stop it from going into reverse in park.

Originally Posted by Calderone
happened to me, it was the cable which got replaced and worked fine since then
Looks like I'll have to try replacing the cable next! you just order one from a Chevy dealer? remember the price by any chance?
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Old Nov 22, 2010 | 08:14 AM
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Same problem ... its the shift cable ... bought one from Advance AP ... As I recall it was a Dorman and cost around $30 ...............
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Old Nov 22, 2010 | 11:30 AM
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Originally Posted by C409
Same problem ... its the shift cable ... bought one from Advance AP ... As I recall it was a Dorman and cost around $30 ...............
Alrighty cool thanks. Glad they have one and i don't have to order from the dealer. I'll head down there this week and grab one and post up my results as well as some pics of the process of changing it out to help others in the future to do the job.

The center console is a major pain in the butt to remove i miss my Japanese car in this reguard 2 screws and the thing just poped off!
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