My van builds up rpm's in first. Gear some times it will not shift to second. For a second or two. What could it be?
Sep 30, 2018 at 2:36 PM
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ASEMASTER6371
AUTOMOTIVE REPAIR CONTRIBUTOR
52,796 POSTS
Good morning.
The throttle position sensor on the throttle body is what controls shifting of the transmission. When it fails, it usually sets a code.
Do you have any codes set in the system?
When was the last time the fluid and filter has been changed?