Hi all Im new here i'v looking some really good information here so Thanks for the website and the people here. well i have a transmission problem it start when i was driving at 35 40 mph and the car feels like shift back and the chk engine light appear so i took it to an Autozone and Find these codecs:

P0700 Transmission Control System Malfunction
P0715 Input/Turbine Speed Sensor Circuit Malfunction
P0731 Gear 1 Incorrect ratio
P0732 Gear 2 Incorrect ratio
P0734 Gear 4 Incorrect ratio

speedometer works fine . could be The Input speed sensor?
Thank you.

 

i would start by swapping out BOTH input and output sensors on the transmission. they tend to both go out --ususally around same time-- and swapping a $20 part while you are already down there, will save you headache in the future. but the codes you listed above are indicative of an Input sensor.

also, have you had the fluid and filter changed recently? i would advise against doing a "flush" as this may simply move particles from one location to another, possibly clogging other internals of the transmission. have them drop the pan and replace the filter--preferrably with a Mopar and ATF-4 fluid ONLY. the trannys can get pretty finicky with other fluids if they are not up to spec. good luck...

 

It Works! Thank you ! ... by the way whats the best oil for the 2.7 engine ?

 

i suggest mobil 1 synthetic 5W30. ~25 at your local walmart. if you don't want synthetic, i would recomend valvoline 5W30 and be sure to use a good quality oil filter such as purolator, wix, mobile 1. stay away from fram. also, make sure you are on top of your oil changes religiously. there is an unspoken flaw in the design of the 2.7 and the engines are prone to failure--usually sludge build up, spun bearing, timing chain issues, etc.

there is a "new" pcv valve via the dealer i would highly recomend picking up as well. allows a higher flow of ventilation from your valve cover.

basically, stay on top of all maintenance and your intrepid should last a long time...

 

Thank you! mlkmgr