Engine is revving but not accelerating

Tiny
SMAURER83
  • MEMBER
  • 2004 MAZDA 6
  • 94,000 MILES
I drive a 2004 Mazda 6, recently I've noticed that the car is over-revving running the rpm's up but not accelerating. Any ideas where to start guessing? I had a tune-up and oil change, but didn't change the spark plugs because it would cost $300?
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Sunday, October 30th, 2011 AT 5:51 PM

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Tiny
RASMATAZ
  • CERTIFIED MECHANIC
Check and test the idle air control valve and throttle position sensor- Have your transmission checked
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Sunday, October 30th, 2011 AT 7:45 PM
Tiny
NO.9
  • MEMBER
I agree, it could be a throttle problem, air flow sensor. If the motor revs erratically while in park or sitting at a traffic light. But, if the motor revs when you leave the light and the car is not moving or if it is not moving at a speed consistent will motor, your transmission is slipping. You will need transmission service.
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Sunday, December 4th, 2011 AT 4:43 AM

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