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1990 oldsmobile 88 shaking engine

Downshifted on the highway and stalled out, i couldent get it started. i changed the spark plugs and now it feels really slugish and shakes in reverse. theres also a loud clunk when it tries to change gears while the gas pedal is depressed

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Most likely a broken engine or transmission mount or broken cv shaft

Posted on Oct 15, 2013

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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SOURCE: The engine in my 96 saturn wagon shakes when it is put into gear, reverse or drive.

remove the belt and spin all of the pulleys by hand to make sure they all spin freely. the knocking noise is probebly a pulley locked up.

Posted on May 11, 2009

  • 784 Answers

SOURCE: Hi, I have a 2006 Altima with 31,500 miles.

You don't need to change the spark plugs since it has only 31.5 K. The plugs should last 60K. There is a an adjustment at the gas cable end at engine to increase the idle a little bit. You can increase rpm at idle to 600 RPM. Since your RPM at idle is low that why it is shaking at idle, red lights. Let me know it it is shaking at high speed ( 2500 RPM)

Posted on Sep 13, 2009

alicantecoli
  • 22095 Answers

SOURCE: 94 Merc: Stalling,shaking, gear stick with mind of its own, HELP!

sounds like the flex plate on the back of the torque converter has splt across the bolt hols that hold it to the crankshaft

Posted on Oct 25, 2009

honeymokey
  • 3113 Answers

SOURCE: car stalling and shaking

Check for vacumn leaks. Replace coil. Check plug boots for oil or water on them. PCV hose from intake manifold will get soft and collapse. Replace motor mounts. The passanger side mount is a fluid filled mount.

Posted on Feb 17, 2010

SOURCE: engine started to shake and rumble when u start it and in idle

I think you right in your thinking by replacing the plugs. My guess is that an injector is partially blocked. Remove the fuel pump relay and take the vacuum hose of the pressure regulator on the end of the fuel rail. Try to start the engine to relieve pressure from the system. Remove the air cleaner ducting. Open the fuel filler cap for a second to relieve any pressure in the tank. Disconnect the fuel supply and fuel return pipes to the fuel rail. Unbolt the fuel rail mount, disconnect the injector electrical connections and ease the injectors out. Take care with the wiring some of the insulation can become brittle. The injectors are held in the intake manifold by 'O' rings and likewise to the fuel rail; securing clips ensure that the injectors are held securely to the rail. Wash and back flush these babies until you are happy they are clean and free of obstruction. Also check the fuel pressure regulator, it is rare for these to fail but its worth checking. Dry everything off. Apply a little oil to the 'O' rings prior to reassembly. If the problem persists at least you can cross this area off your list.

Posted on May 28, 2010

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