no fourth gear in mitsubishi gto automatic

1992 MITSUBISHI 3000GT
93,000 MILES
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NICOLAJAMIE
  • MEMBER
  • 3 POSTS
No fourth gear. Just revs up
Jan 23, 2012 at 1:49 PM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Could be a stuck shifting solenoid/valve body-get it pressure tested by a transmission specialty shop
Jan 23, 2012 at 2:05 PM
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RIVERMIKERAT
  • ✓Experienced Mechanic
  • 6,106 POSTS
Check fluid level, condition, and pressure.
Jan 23, 2012 at 2:09 PM
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NICOLAJAMIE
  • MEMBER
  • 3 POSTS
the fluid level is fine, the overdrive is now a neutral, could the gearbox be gone??
Jan 24, 2012 at 2:16 AM
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RIVERMIKERAT
  • ✓Experienced Mechanic
  • 6,106 POSTS
Have you had it pressure tested?
Jan 24, 2012 at 11:28 AM
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NICOLAJAMIE
  • MEMBER
  • 3 POSTS
What is a pressure test thanks
Jan 24, 2012 at 3:00 PM
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RIVERMIKERAT
  • ✓Experienced Mechanic
  • 6,106 POSTS
A pressure test determines whether or not the transmission pump is working properly and supplying enough pressure. One of the tranny cooler lines needs to be disconnected and the pressure gauge is installed.
Jan 24, 2012 at 8:54 PM
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