1991 Cadillac Deville decrease in gas milage

Tiny
MOODOE79
  • MEMBER
  • 1991 CADILLAC DEVILLE
  • V8
  • FWD
  • AUTOMATIC
  • 167,000 MILES
My gas milage has been cut in half and I have developted a miss when ever I get on the throttle.I have tryed stp fuel injector cleaner and fuel treatmant. Nothing has worked please help me figure out.
Thursday, February 14th, 2008 AT 7:45 AM

1 Reply

Tiny
BUZZSAW
  • MECHANIC
  • 1,198 POSTS
Its time to replace thoes injectors
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Friday, February 15th, 2008 AT 4:10 PM

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