1987 Nissan Sentra

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  #1  
Old 04-04-05, 06:49 PM
DoubleG
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Question 1987 Nissan Sentra

I have an 87 Sentra which won't upshift. I have 1st gear and reverse.
It is an automatic transmission. Problem occured when I was driving. I exited the highway, stepped on the gas. No go. Slowed down and when I downshifted to 1st eventually I could go. Changed the filter and fluid. Cleaned the valve body. Was dirty but didn't appear horrible. I am curious what the governor valve does and what the detent wire cable does. I am pretty sure that what I am calling the detent is what I also know as a kickdown cable. The housing around this cable is busted but the cable is intact. There is an adjustment nut right above the break. Can this keep my car from upshifting?
Thanks for your help.
 
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  #2  
Old 04-05-05, 08:42 PM
billys68ss's Avatar
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It is possible that this is your problem. You really should take the car to a transmission shop for proper diagnosis. There could be many factors for the condition you are experiencing. Unfortunately you really need someone to physically look at your car.
Good Luck,
Billy
 
  #3  
Old 04-06-05, 04:16 PM
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Sound like the governor driven gear is stripped off all the teeth, it's cheap and easy to replace without pulling the trans, you can do it with a pair of needle nose and screwdriver, the new one makes by metal instead of plastic as the old one does.
 
  #4  
Old 04-08-05, 04:11 PM
DoubleG
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Red face 1987 Nissan

Thanks for the info, I will try the suggestions. And I'll let you know what happens.

Again Thanks
 
  #5  
Old 04-11-05, 07:27 PM
DoubleG
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Smile Got it

Thanks for the help. Turns out it was the governor valve. Nylon spiral gear looked like an hour glass. Replaced it and away I went.

Thanks again.
 
  #6  
Old 04-12-05, 03:36 AM
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My pleasure
 
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