Question about 1989 Oldsmobile Cutlass Ciera

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89 olds cutlass ciera bogging down when accelerating.

Changed O2 Sensor, MAP Sensor, Air Filters fine, Changed Fuel Filter...But it still Bogs down when trying to accelerate. What is the problem?

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  • Skyman1989 Feb 22, 2009

    No thats not it...checked it, I think its the Mass Air Flow Sensor. Where would that be located?

  • Skyman1989 Feb 23, 2009

    Ok...Good to know, How would I check my fuel pressure???

  • Skyman1989 Feb 23, 2009

    Could it possibly be the Throttle Position Sensor???

  • Anonymous Apr 25, 2009

    When I accelerate it sounds like it is miss firing but when idleing it sounds fine


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My 89 cutlass did the same thing....She would bog down ( when the service engine light came on)....Light would go off and she would run fine...Shop replaced fuel fiter and KNOCK SENSOR, runs great now, the service engine light stays off too. Ran a can of MG injector cleaner thru too.

Posted on Oct 15, 2009

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Working on Mom's car for three days now I've just about pulled all my hair out ! The dam thing would bog as i tried to accelerate over 700 RPM. We replaced the MAP,TPS,FUELPUMP,and i ohm-ed out everything under the hood, and then i found it!! The CRANK POSITION SENSOR had cracks around the base of the sensor and had oil seeping out.Check out pic.I hope this could be of some help...89 olds cutlass ciera bogging down when accelerati - 81f987d.jpg

Posted on Mar 09, 2009

  • hotrodmatt
    hotrodmatt Sep 02, 2012

    I had a bad crank sensor-never a code - no fire- replaced that - all ok except= engine -when driveing giving slow throttle even up to 70mph -all ok -accelerate quickly - backfire & boggs -picks up -bogs again. Likely TPS im guessing -shows no codes also . I also have recently changed fuel filter & fuel pump .


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Look at how much exaust pressure is coming from the tail pipe, and if the speed of exaust increases when you step on the gas.... possibly a restricted exaust, or cat converter.

Posted on Oct 12, 2009

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It sounds as if the catalyst converter may be stopped up. If you can loosen the exhaust until there is a gap between the manifold and pipe drive the vehicle and see if there is a difference. If it is restricted then you will have to replace the converter.

Posted on Feb 21, 2009

  • suterman
    suterman Feb 23, 2009

    Hello, If your car has a map sensor it will not have a mass air folw sensor. You may need to check to see if you have 35 pounds of fuel pressure. If not then you will have a fuel problem. Thank You

  • suterman
    suterman Feb 23, 2009

    Hello, you will have to go to an auto supply store and see if they have a good fuel pressure guage with several different fittings.Not one of the cheap sets they wont have the fittings, or you may have to make one work but you are going to have to disconnect the fuel filter under the car and put the guage into one side of it. Then turn the key on and read the pressure while the pump is running.Even though you may see alot of fuel comming out of the filter when you disconnect it, it has to have pressure along with volume where the guage wont lie. It could possibly be the tps and you could try it first it is mounted to the side of the trottle body oposite of the throttle cable. black and round peice , but it is really going to be a decision you make. thank you


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Car idles fine, but sputters, bogs and dies if gas pedal is pressed.

new spark plugs this decade. (a tune up?0
the filter is part of all 60k tuneups. letting it clog wrecks good pumps.
my wild guess, its lack of fuel flow, do to old filter.
or low fuel pressure.
car is identical to a Corolla. so is not unique or rare as some Geo cars are.
the cam belt not changes, invites valve kissing piston tops. BOOM
end of engine. (costs more to fix then worth of car)
the word is bogging, my engine bogs
if if bogs WOT (wide open throttle) and dont catch up < ITS NOT THE TPS. ever.
tps bad causes short bogs, called hesitations.
The map sensor , is what measure air flow and the ECU matches fuel to this air flow.
my guess, is it does that, but fuel pressure is like 15PSI, bad.

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sometimes the tank decomposes from the inside flaking off and clogging filters, pumps, etc. always a good idea to completly remove tank and flush to check for same when changing the fuel pump. if that's your problem, you will need a new gas tank

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The filters by the fuel tank, near the rear tire.....My 89 olds was missing badly too.....Out on the road the check engine would come on, and she would bog down and buck....Shop replaced KNOCK sensor, it's a timing issue....She runs fine now, check engine light stays off too.

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It is possibly the O2 sensor. I had some issues with early 90's 4.0 liters where the O2 sensor would stick rich under heavy acceleration and would cause it to lean out and bog down. It felt like a rochester four barrel flat spot on an old chevy. I hope this helps.

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