2003 chevy s10 wont downshift
Asked by buckeyeguy66 Jul 02, 2009 at 03:48 PM about the 2003 Chevrolet S-10 LS LB RWD
Question type: Maintenance & Repair
4.3 v6 and wont downshift going up hills on the interstate. goes through all other gears just fine
3 Answers
See if there is a vac mod on the tranny. Maybe that or a vac line
buckeyeguy66 answered 15 years ago
You were on the right track. Actually the catalytic converter went bad and wasn't getting enough oxygen to the engine or torque converter.
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