1973 Chevy Impala high RPM

1973 CHEVROLET IMPALA
275,000 MILES • V8 • 2WD • AUTOMATIC
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KOTYALLEN18
  • MEMBER
  • 1 POST
i have a 1973 chevy impala and i recently replace the fliter and both front and rear seals transmission i just bolted it back up and took it for a test run and now it has to reach a very high RPM before it will shift gears what is the probelm
Jan 22, 2009 at 8:00 PM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Could be a problem with the vacuum modulator on the transmission
Jan 22, 2009 at 8:06 PM
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