#1  
Old 06-29-2020, 11:17 AM
ctrcreek ctrcreek is offline
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Join Date: Apr 2005
Location: milaca,mn
Posts: 98
Default No high gear

My 62 tempest conv. All of the sudden is stuck in low ? Driving inthe afternoon all was fine. Went for an evening cruise and wouldn’t shift into second . It never has slipped and the fluid level is good , maybe a hum line to modulator went bad ? They are very old . At least that’s what I will check first. Just wondering what else it could be ?

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1969 firebird 400
1962 lemans conv.
1958 cheiftian 2drhrdtp
1977 corvette (the wifes)
  #2  
Old 06-29-2020, 11:18 AM
ctrcreek ctrcreek is offline
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Location: milaca,mn
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Vacuum line is what I meant

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1969 firebird 400
1962 lemans conv.
1958 cheiftian 2drhrdtp
1977 corvette (the wifes)
  #3  
Old 06-29-2020, 03:15 PM
mechanickeith's Avatar
mechanickeith mechanickeith is offline
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Location: Phoenix, Az
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Default

Could be the modulator, governor, valve body issue or could be bad seals on the drive clutch. My 61 has the same issues. I have checked the first 2 items, all ok, now to pull the trans pan.

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Keith Collier
61-63 Pontiac Tempest
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