Automatic transmission

1991 CHEVROLET S-10
200,000 MILES • 4.3L • V6 • 2WD • AUTOMATIC
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MARKRIOJAS968
  • MEMBER
  • 7 POSTS
from take off just after i warm it up in morning, it takes a while for it to shift from first to second and rpm's can get pretty high before it changes.
Jan 20, 2018 at 11:32 AM
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ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
Good morning.

I would start by changing the fluid and filter and adding some valve body modifier. There may be some dirt in the valve body restricting the movement of the shift valves.

Roy

Jan 20, 2018 at 8:36 PM
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