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I just had the transmission replaced on my 1993 chevrolet truck 4x4 it only has 2nd and 3rd gear it will not downshift and runs choppy when I disconnect the battery for 5 to 10 minutes the reconnect it it will run fine and shift fine for a day or two then starts back with the same problem what could it be?

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  • Cars & Trucks Master
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TAKE IT BACK.

Posted on Dec 04, 2012

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There is a wire going to the rite side if the transmission that is responsible for down shift check if its hucked up correctly and also if its getting power.

Posted on Dec 04, 2012

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Posted on Jan 02, 2017

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SOURCE: transmission downshifts erroneously

Sounds like the computer that controls the transmission.....but don't just go buy one because there is a diagnostic route.I just worked on two of those earlier this year,and the computer can drive you crazy.92 is pre OBD 2 or OBD anything,codes are pulled from the car manually.Passenger side interior,front kick panel.Remove the kick panel,locate BLUE colored TWO WIRE connector.It isnt connected to anything.Take a paper clip or wire,bend in a U,insert into connector.Turn the ignition switch on,engine off.This throws the trans computer into self diagnostic mode.Count the number of times...on the dash...the "S" light flashes.This is the code number.Now you look up the code number on a code chart.If there are NO CODES,the "S" light just comes on for 2 seconds when you turn the ignition on,then the "S" light goes back out.Thats normal operation,no codes.If no codes,you are back to square one.Welcome to code diagnostics.Remove paper clip.IF,there are any codes,they must be identified on a code chart,as a diagnostic trouble code for say...the shift solenoids,is a definite solution to this problem.Honda trans's are problematic on solenoids,shift and line pressure.So,check for codes,diagnose any codes and repair them.If no codes,or codes have been repaired,and the same symptom still persists,then it's time to look at the computer,or PCM.The PCM is located either under the carpet on the passenger side front,near the firewall,or under one of the front seats.Remove the PCM,take to a clean bench,and dissasemble.Remove outer cover and look,don't touch,look for a capacitor that may have exploded.I had very similar problems on one....the gear selector indicator would indicate Park and Overdrive....AT THE SAME TIME,when actually in Overdrive,and the car would failsafe to 3rd gear.It was a bad PCM,but did not see an exploded capacitor inside that one.Good Luck...Hondas,gotta love em.

Posted on Jul 09, 2008

short shadey
  • 421 Answers

SOURCE: 2003 Dodge DSL 2500 transmission shifting problems

sounds like you should start by dropping the pan and changing the filter, put cheap fluid in it or reuse the old fluid if its not too bad bring it to a shop and have a transmission flush performed with a good flush machine your valve body is sticking and this should clear things up please rate -jeff

Posted on Sep 05, 2008

  • 2920 Answers

SOURCE: truck wont shift automatic. stays in 3rd gear. can shift manually

either repair or replace the transmission...sounds like the sensor went out

Posted on Dec 14, 2008

alicantecoli
  • 22246 Answers

SOURCE: hard shift from 1st to 2nd gear automatic

what year is vehicle please ?? as people often put it in wrong catagory ,if its mazada 2007 then its dealer only as a computer controls it all and the software is factory encrypted to stop general garages from repairing it .But check for a vacumn pipe loose under bonnet ,thin rubber pìpe from inlet manifold to gearbor or a diaphram switch,

Posted on Feb 19, 2009

tepfy
  • 319 Answers

SOURCE: 1993 Saturn SL2 will not shift into highway gear

Saturn says and I quote

there transmission fluid is not to be changed after the first change at 6000 miles.

Now I say it should be changed at every 30000 miles. If changing out the fluid doesn't work then you need to go to a transmission repair shop.

Posted on Mar 20, 2009

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