2002 Mitsubishi Galant Why does my car shudder a 25 mph?

Tiny
KATTIES123
  • MEMBER
  • 2002 MITSUBISHI GALANT
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 137,000 MILES
When I am going 25 mph my car shudders. As long as I am under or over 25 mph it drives perfectly. I had the tires replaced and balanced, still shudders. Since I know little to nothing about cars, I wanted to ask you guys first before I head to a shop.
Friday, July 24th, 2009 AT 4:05 PM

3 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,176 POSTS
Does the car continue to do this at any speed over 25MPH? Does it seem as the engine is missing or a problem with the drive line? Where do you feel it most, in the steering or the seat of the car? Finally, have you had the motor mounts and / or trans mounts checked? Has the check engine light ever come on?

Let me know.

Joe
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Friday, July 24th, 2009 AT 10:35 PM
Tiny
KATTIES123
  • MEMBER
  • 2 POSTS
No the car only does it at 25 mph. I don't hear or feel a miss, the car shifts fine, drives fine. I can feel it in the steering wheel but mostly in the seat of the car. I have not had the motor mounts or trans mounts checked but I will. The check engine light has come on. I took it to AutoZone where they hooked it up to some machine and they told me it was the Oxygen Sensor and it wasn't a big deal? Is it a big deal? Will this be really expensive to repair?
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Saturday, July 25th, 2009 AT 10:33 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,176 POSTS
Yes, the O2 sensor can cause driveability problems It's not a hard part to replace and the part isn't too expensive. You should replace it. Also, let me know what you find out about the motor mounts and trans mounts.
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Saturday, July 25th, 2009 AT 9:37 PM

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