83 Sentra, E16, Weird tranny problem

rhlimited · Jun 18th, 2004, 03:59 PM

Good afternoon,
My vehicle is...
83 Sentra, E16 with CA emissions, 3 spd auto trans, 160,000 miles

Just recently it started up-shifting prematurely...
- From 1st to 2nd around 10mph and 1800rpm
- From 2nd to 3rd around 18mph and 1800rpm
...shift points are about the same for average acceleration or WOT.

Also, at any speed, if I floor the accelerator the trans will not downshift.

Any thoughts or suggestions would be greatly appreciated.
Thank you for your time!

Gary

Gsolo · Jun 19th, 2004, 04:17 AM

Quote:

Originally Posted by rhlimited

Good afternoon,
My vehicle is...
83 Sentra, E16 with CA emissions, 3 spd auto trans, 160,000 miles

Just recently it started up-shifting prematurely...
- From 1st to 2nd around 10mph and 1800rpm
- From 2nd to 3rd around 18mph and 1800rpm
...shift points are about the same for average acceleration or WOT.

Also, at any speed, if I floor the accelerator the trans will not downshift.

Any thoughts or suggestions would be greatly appreciated.
Thank you for your time!

Gary

coming from my experience on V8's, sounds like you're linkage from the throttle to the transmission isn't hooked up

minute rice sentra · Jun 19th, 2004, 02:23 PM

Yeah try checking the kickdown cable at the tranny and at the throttle, and make sure it's not kinked anywhere between.

rhlimited · Jun 19th, 2004, 07:08 PM

Quote:

Originally Posted by minute rice sentra

Yeah try checking the kickdown cable at the tranny and at the throttle, and make sure it's not kinked anywhere between.

Thank you very much for the tip!
I appreciate it.

recycled_toddler · Jun 20th, 2004, 02:52 AM

Also, check to make sure the kickdown adjusting sleeve/nuts didn't slip off the manifold. The manifold has a bracket that holds the carb end of the kickdown cable, and adjustments are made there. I just hope to God you didn't snap a cable, because they are a relative BITCH to replace!

rhlimited · Jun 22nd, 2004, 10:49 PM

Quote:

Originally Posted by recycled_toddler

Also, check to make sure the kickdown adjusting sleeve/nuts didn't slip off the manifold. The manifold has a bracket that holds the carb end of the kickdown cable, and adjustments are made there. I just hope to God you didn't snap a cable, because they are a relative BITCH to replace!

I worked on the car this weekend, and that was the exact problem. The cable had slipped off the bracket.

Thanks to everyone for your help!

recycled_toddler · Jun 23rd, 2004, 03:30 AM

Quote:

Originally Posted by rhlimited

I worked on the car this weekend, and that was the exact problem. The cable had slipped off the bracket.

Thanks to everyone for your help!

Not a problem; I thought it smelled familar! Best to ye...