1993 Chrysler 5th Avenue my transmission wont shift and spe

MY93FIFTHAVE

MEMBER
1993 CHRYSLER FIFTH AVENUE
6 CYL
FWD
AUTOMATIC
153,500 MILES

I have a 1993 chrysler fifth avenue runs and drives great today twice I was driving and the car acted up my speedometer quit and transmission went in 2nd gear that was brief and quickly corrected itself then on my way home it did it again but wont go out of 2nd gear and speedometer isnt working any idea what is happened and how to fix it? PLEASE HELP

Friday, April 2nd, 2010 AT 8:34 PM

1 Reply

CARADIODOC

MECHANIC
34,331 POSTS

The transmission uses an input speed sensor and an output speed sensor. The Electronic Automatic Transmission Controller (EATX) watches both sensors to determine if slippage is occurring in any of the clutch packs. When slippage is detected, the computer defaults the transmission to second gear so you can drive it slowly to a repair shop.

The good news, in your case, is it will default to second gear also if a sensor problem is detected. That's a whole lot less expensive. Since the speedometer quit, the problem most likely is sensor-related. There could be a computer problem too, but let's hope it's just a sensor.

Caradiodoc

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Saturday, April 3rd, 2010 AT 12:14 AM