1 have a 1995 astro van with a 4L60E tranny - the tranny won't shift past 2nd gear - when it gets to 3rd it feels like neutral. the speedo is fine and the engine light has come on the past during certain times but not lately. I've read tons of blogs on solenoid issues - crossed wires - trouble codes or torque converter clutch problems - but no definte answers on what is the problem and what would the cost be approx to fix.
Do the pin point tests, these start witjh running a trouble code test, autozone and kragen will do this for free, if u haven't had the trans apart then cross out any crossed wiring issues, but I do think you will find a problem with the 2-3 shift solenoid, either the solenoid has failed or the connector has a problem on the outside of the trans.
When u refill the trans use the new Dexron VI ATF, it replaces all previous fluids and is far superior in every way, also don't over-tighten the trans pan follow a slow tightening pattern, make sure all the wiring to the trans is in good condition, clean the connector and check for water intrusion.
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thank you for the help and suggestions - it seems Autozone doens't take cars from 1995 for testing - (uhhh!) Maybe for around $21.00 I can get the 2-3 shift Solenoid and try to replace it - can't hurt can it? Is there any special things I need to fix it - specs, etc.
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