I have a 95 olds cutlass supreme, random cylinder misfire please help! I've replaced a lot!

20

Asked by Aug 07, 2013 at 03:47 PM about the Oldsmobile Cutlass Supreme

Question type: Maintenance & Repair

I've replaced upper and lower plenum gaskets, refurbished fuel rails and new injectors,
replaced wires that were corroded to the point the car wouldn't run, then had that
problem fixed, it was running great and I put it away for 9 months, I just pulled it out and it
runs fine until you need to accelerate above 2500 rpm and then it will start misfiring, if I
turn it off and let it sit for a few minutes I can start it up and drive it with no problems as
long as I stay under 2500 rpm but sometimes that not enough power to accelerate
properly with a 3.1, please help, I just did a fresh tune up and after a few weeks I will
inspect the new plugs, I used ac deco plugs but an xact wire set, I know they like deco so
delco wires? Thanks in advance!

1 Answer

65

Check your catylist converter, it's probably plugged up, thus restricting exaust, simple, just disconect it and try running it, Good Luck

Your Answer

Oldsmobile Cutlass Supreme Experts

  • #1
    munron
    Reputation
    670
  • #2
    tennisshoes
    Reputation
    420
  • #3
    Tom Demyan
    Reputation
    340
View All

Related Models For Sale

Used Chevrolet Caprice
152 listings starting at $7,995
Used Chevrolet Monte Carlo
7 Great Deals out of 1,220 listings starting at $1,488
Used Buick Regal
181 Great Deals out of 8,053 listings starting at $5,499
Used Chevrolet Impala
550 Great Deals out of 34,960 listings starting at $1,495
Used Ford Mustang
566 Great Deals out of 36,664 listings starting at $1,500
Used Dodge Challenger
278 Great Deals out of 24,173 listings starting at $6,495
Used Dodge Charger
361 Great Deals out of 30,285 listings starting at $2,000
Used Pontiac Grand Prix
16 Great Deals out of 2,568 listings starting at $1,450
Used Chevrolet Camaro
460 Great Deals out of 31,537 listings starting at $3,550
Used Ford F-150
2,847 Great Deals out of 213,250 listings starting at $1,295
Used Pontiac Firebird
11 Great Deals out of 758 listings starting at $2,500
Used Chevrolet Corvette
186 Great Deals out of 18,698 listings starting at $3,941

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.