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1990 Oldsmobile 98 Service Engine Soon

Tiny
OLDS98REGENCY
  • MEMBER
  • 1990 OLDSMOBILE 98
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 130,000 MILES
I have a 98 olds regency and when ever I go down the road at 35-40 mph the service engine soon light comes on and the car chugs. I get on the highway and when I approach 65-70 it does the same thing except more frequently like chug, chug, chug. I recently fixed a broken vacuum junction up by the motor on top but that did not fix the problem as I would have expected. Can anyone give me some solutions as to what it could be?
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Saturday, March 13th, 2010 AT 7:54 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Have the computer scanned for code/s-there's a problem within the engine management system for the CEL to come on-that's your starting point of diagnosis-finding out the problem.
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Saturday, March 13th, 2010 AT 9:09 PM

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