Limp Mode 1776 Chrysler

XMECHINECH

MEMBER
2004 CHRYSLER CONCORDE
6 CYL
FWD
AUTOMATIC
69,000 MILES

I have a 2004 Chrysler Concorde Limited with 68k on it. It has a code 1776. Issue: Check engine light will come on, a mile later the car will shift into low when it is down shifting while slowing. I can pull over, shut car off and turn it back on to get it out of low. The car now has been to two dealers for this problem. The first replaced the valve body and solenoid. Didn't fix problem. So I went to second dealer. They did the exact same thing, plus added a new computer. Took car, after ten minutes light came on again. After a mile or so while slowing car shifted into low and stayed there until I shut down. NOW they want to replace the tranny? I'm sick of these guessing games and cost. ANYONE have a solution, because clearly these so called technicians DON"T :) Thanks in advance.

1 Reply

DOCFIXIT

MECHANIC
18,828 POSTS

Think problem is internal as to leals in L/R piston or accumulator. Need pressure test on Low/Reverse to see if pressure is droping. See diagram. The L/R switch closes twice light goes on shut off resets and again PCM senses switch closing twice light back on. Pressure 115-145 psi