engine is revving but not accelerating

2004 MAZDA 6
94,000 MILES
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SMAURER83
  • MEMBER
  • 1 POST
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??
Oct 30, 2011 at 10:51 AM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Check and test the idle air control valve and throttle position sensor- Have your transmission checked
Oct 30, 2011 at 12:45 PM
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NO.9
  • MEMBER
  • 3 POSTS
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.
Dec 3, 2011 at 8:43 PM
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