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1990 Oldsmobile Cutlass Supreme Question: not a 1990 its a 1989

 

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timmyg, 3.1L V6, Wasilla, AK, August 27, 2009, 09:12
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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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  • Answer #1

    August 27, 2009, 16:30
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     Master

    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!

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    timmyg, August 28, 2009, 17:39
     Rookie

    thanks dandd

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    timmyg, April 27, 2010, 16:50
     Rookie

    crossed wires and o2 sencer just had this problem popping out the throddel body

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    Visitor, March 30, 2011, 06:09

    our 1990 Cutlass acted the same way. It needed a new catalytic converter.

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