Question about 1995 Oldsmobile Cutlass Ciera

1 Answer

Engine running real rough

The engine seems to be starving for fuel. I can also smell fuel at times. When driving at a normal pace the car shakes alot. When you give it fuel it almost stops. When you let off the accelerator it goes back to shaking. Sometimes it is worse then others. I tried the dry gas additive that did not help. I need some help.

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  • mjfav Mar 26, 2009

    mine is not so bad,runs rough @ acceleration slow pedal it works step on it it wants to die ??

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  • 35 Answers

Sounds like a bad plug or plugged fuel injector. Try using an additive by Chevron, called Tectron. I have had similar issue and just replaced plugs and added Tectron it seem to resolve the issue. In addition, it could be plug wires too, so you may want to start with the additive, move to the wires and then the plugs. Good Luck

Posted on Jun 01, 2009

6 Suggested Answers

  • 2 Answers

SOURCE: 2002 pontiac grand am shaking and no acceleration

does your "Service Engine Soon" light come up? If it does get a repair man to read the code.

Have you driven the car for about 150,000Km? then it could very well be that one or two of your spark plugs have stopped firing. You need to get that spark plug replaced. Remember, when replacing spark plugs, it is adviced that you should replace all of them at once.

Posted on Nov 24, 2008

  • 3 Answers

SOURCE: Rough idle, Car shakes, sputters and misfires upon acceleration

It sounds like you may have a problem feeding the fuel to your engine, I had the same problem with my 89 RS. All the 1989 model's fuel systems were recalled. I think you may need a new fuel pump. The fuel pump is located inside the gas tank in the rear of the car right under the rear axle. The fuel pump itself isn't too expensive, but with other small parts such as the electrical harness upgrade and fuel filter and the labor you should be looking somewhere in the $500 range. I hope this helps.

Posted on Jan 12, 2009

Molson02536
  • 3854 Answers

SOURCE: Rough idle only when in gear.

The Air Idle Control Valve (IAC) may be bad or dirty with carbon build up. Check for loose wire, remove and try to spraying it with throttle body cleaner to clean the carbon out and dry it with a hair dryer before installing.
The other thing to look for to is stuck EGR valve. same process as the (IAC) as to cleaning it too. If both are beyond cleaning then replace it.
You can go to Auto Zone and have the car scanned for any DTC codes which would indicate any problems with the (IAC) and EGR's performance.
The other thing to that would make the engine shake at low RPM's is bad spark plug and wire or low engine compression, but that would give you problems through out the whole engine's performance.
Good luck and hope this helps, Start with the (IAC) and EGR as to cleaning and scanning the engine.

Posted on May 28, 2009

dnewcombe1
  • 1564 Answers

SOURCE: 1998 Audi A4, engine shakes/runs rough sometimes

It sounds more like you've got an intermittant vacuum leak. Try, with the engine running, spraying some WD-40 or any kind of penetrating lubricant spray,over the intake manifold area and any related vacuum lines. If you hear the engine strat to stumble, providing you're not shooting directly into the air box, concentrate the spray on that area until you're able to pinpoint a loose, cracked. or off, vacuum line or hose.

Posted on Aug 22, 2009

  • 158 Answers

SOURCE: Shaking during acceleration between 25-45 mph

are all of your spark plugs firing right?

Posted on Aug 28, 2009

  • 1 Answer

SOURCE: At 40 mph the car starts to shake. It last to 5o

I have this same car with exactly the same problem. Begins shaking at 40mph and stops shaking as soon as you let off the gas, but then begins again as soon as you press on the gas and smooths out as you get over 50. And the shaking is not felt through the steering wheel. Solution: Replace the transmission mounts. There are two of them, one on each side mounted on the frame right next to the shock strut. There is also a front and rear engine mount, but I replaced the two as described and shaking is gone.

Posted on Dec 13, 2009

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