1994 OLDSMOBILE SPEEDOMETER GOES CRAZY AND CAR

  • Tiny
  • mechdesigner
  • 1994 Oldsmobile

Electrical problem
1994 Other Oldsmobile Models 6 cyl Front Wheel Drive Automatic 225000 miles

Car starts and runs fine. Then just a few miles or less up the road, the speedometer drops to 5 or 10 mph (while the car is still going 50 - 60 mph). The transmission down shifts as if the car were going much slower. You wind up going down the road at city speeds 45 - 50 mph while the motor is spinning at 3000+ rpm. I've already replaced the transmission speed sensor. I was sure that was the problem, but not so.

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Saturday, August 14th, 2010 AT 3:21 PM

1 Reply

  • Tiny
  • mhpautos
  • Expert
  • 30,590 posts

Hi there,

Thank you for the donation,

I would have suggested the same, so as that has not cured the problem, have you done a scan as yet to see if there are any unresolved fault codes, not all faults will set a MIL.

Mark (mhpautos)

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Saturday, August 14th, 2010 AT 7:55 PM

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