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Just put a rebuilt transmission in my 2001 chevy silverado and it shifts thru 1st 2nd 3rd but won't shift to 4th or kickdown what can the issue be and how can I fix it?
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It winds up in 1st and then shifts right from 1st into 3rd. Then never shifts into 4th. Plus rev is gone. You broke the sun shell. The transmission will need to rebuilt or replaced.
Your transmission has 3 shift rails... 1st - 2nd 3rd -4th 5th- Reverse
If your 3rd gear doesn't work , you have an internal transmission problem, such as a syncronizer, or similar fail... There is not much you can fix, without removeing the transmission.
No 3rd or 4th gear: “3-4” clutches are worn out. R&R. The car is safe to drive (in 2) until you can get it fixed.
Trans shifts into gear harshly, car feels sluggish off the line, No
1st, 4th or TCC lockup available, Manual 2nd, 3rd and Reverse are only
available gears, CEL is on: Transmission is either in limp-home mode or
has lost electrical power. If there are lots of error codes in the PCM,
check the under hood fuse that powers the transmission, and if it pops
again, look for a short in that circuit like an O2 sensor harness
touching exhaust. Otherwise, check PCM codes for a particular fault in
the transmission causing the PCM to put it in limp-home mode.
No 1st or 4th available; trans shifts 2nd to 3rd by itself in D or OD
and locks the converter : Shift A solenoid failed. Easy fix in the pan.
Or a wiring problem from PCM to trans.. or PCM.
Check to see if your transmission is in the limp mode, which would only give you 2nd, 3rd and reverse gears. No 1st or 4th gear.
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