Transmission not working properly

Tiny
GINA MYERS
  • MEMBER
  • 1985 CHRYSLER 5TH AVENUE
  • 2WD
  • AUTOMATIC
  • 300,000 MILES
When I was driving it would go into 3rd but let off gas jumps into neutral. Quit going in reverse now have no gears.
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Monday, November 2nd, 2020 AT 9:32 AM

1 Reply

Tiny
ROY B
  • EXPERT
Good afternoon,

Did you check the fluid level? See if it is a nice red color.

https://www.2carpros.com/articles/automatic-transmission-problems

I would start by changing the fluid and filter and see if that helps. It could be the filter is clogged.

https://www.2carpros.com/articles/how-to-service-an-automatic-transmission

I attached a TSB below for this issue. It will require removal of the transmission for the repair.

Roy

TSB

TSB: 88-38 (Aug.)

SUBJECT: TORQUEFLITE 904

PROBLEM: No forward movement

No forward movement of Torqueflite 904 could be caused by a broken weld or stripped spline in the front planetary. If front planetary is broken, power flow will stop at the output shaft.

imageOpen In New TabZoom/Print

No forward movement of 904 with LOCK-UP VALVE BODY after assembly could be caused by a mislocated checkball in transfer plate (Fig. 1)

imageOpen In New TabZoom/Print

If checkball is installed at location shown, it will cover rear clutch apply hole in case (Fig. 2).

To determine if a checkball is to be installed, check the separator plate at the location shown below. If there is one hole, no checkball should be installed. If there is a smaller 2nd hole, a checkball should be installed. The purpose of this checkball is to orifice fluid flow to the forward clutch for a more cushioned apply.

If checkball is installed at location shown, it will cover rear clutch apply hole in case (Fig. 2).
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Tuesday, November 3rd, 2020 AT 1:24 PM

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