have a 2003 Hyundai Elantra GLS...it over revs sometimes when driving normally even when not touching the gas pedal?...also the car stalls when stopped at lights sometimes as revs drop ?...the revs

Asked by Jan 14, 2017 at 04:20 AM about the 2003 Hyundai Elantra GLS

Question type: Maintenance & Repair

car would rev up to 500 rpm above normal range when driving normally then
after a few seconds drop back to its normal rev range?..why?
does this constantly when driving longer trips and engine is hot.
car also stalls sometimes when idling at lights..revs drop?..its an auto so no
clutch issues here?

1 Answer

73,765

Check the transmission fluid level while the engine is running, Does this do this in park? I'm thinking maybe the Throttle Positioning Sensor. Also check for any codes if the check engine light is on.

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