iHAVE POPPING OUT THE AIR INTAKE AND NO POWER ON A FLAT SERFACE GOES GOOD BUT UNDER A LOAD ON A HILL 26 MPH TOPS ??????
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1990 Oldsmobile Cutlass Supreme Question: not a 1990 its a 1989
Answer #1dandd August 27, 2009, 16:30Master
Sounds like your Catalytic Converter may have gone bad, which can be problem on this vintage GM cars. They fail and plug up. Have a shop do a back pressure check. that will answer this question.
Best of Luck!
Replytimmyg, August 28, 2009, 17:39Rookie
Replytimmyg, April 27, 2010, 16:50Rookie
crossed wires and o2 sencer just had this problem popping out the throddel body
ReplyVisitor, March 30, 2011, 06:09
our 1990 Cutlass acted the same way. It needed a new catalytic converter.