Transmission/shifter
Thread Starter
7th Gear
Joined: Jun 2013
Posts: 7
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Transmission/shifter
I have a 1994 automatic that shifts fine but does not downshift manually when I move the shifter from drive to second or low. It started with just low not responding unless I jerked back hard on the shifter, then it began the same thing in 2nd.
Is this an indication of the shift cables out of adjustment or worn or does it sound like a transmission problem?
Again, it shifts strong and smooth when in drive.
Car has 82,000 miles.
Is this an indication of the shift cables out of adjustment or worn or does it sound like a transmission problem?
Again, it shifts strong and smooth when in drive.
Car has 82,000 miles.
Last edited by lee1958; Apr 26, 2014 at 08:11 PM. Reason: omitted information
Racer
Joined: Jan 2014
Posts: 324
Likes: 7
From: Littleton Colorado
I'm not going to claim to be any sort of expert, but I'll take a shot at it since no one else has responded.
The 1994 automatic is the 4L60E. The "E" means "electronic" shifting. In order to shift into any particular gear, the PCM has to get a signal from the "PRNDL switch", which is the "park, reverse, neutral, drive, low" switch on the shifter shaft on the transmission. The shifter/cable will mechanically engage/disengage the park pawl inside the transmission, but all other functions require the signal from PRNDL switch.
So, it could be a problem with the shifter cable, where it doesn't move the shifter arm far enough (could be a damaged cable core or cable housing causing that problem); or adjustment of the shifter cable; or it could be the PRND switch itself (either an adjustment or electrical issue).
The 1994 automatic is the 4L60E. The "E" means "electronic" shifting. In order to shift into any particular gear, the PCM has to get a signal from the "PRNDL switch", which is the "park, reverse, neutral, drive, low" switch on the shifter shaft on the transmission. The shifter/cable will mechanically engage/disengage the park pawl inside the transmission, but all other functions require the signal from PRNDL switch.
So, it could be a problem with the shifter cable, where it doesn't move the shifter arm far enough (could be a damaged cable core or cable housing causing that problem); or adjustment of the shifter cable; or it could be the PRND switch itself (either an adjustment or electrical issue).
