armin922 Posted January 2, 2005 Report Share Posted January 2, 2005 My gf has a 97 mercury sable with 140K miles on it and for some reason the car shakes eratically. Its not a hard shake but its just enough for you to be like WTF? When the car is in Park it idles at 1k. But shakes a bit. But when u put it into R, or D, the RPM drops to 500. When u drive the car it stutters. It'll go but it will seem like it stutters. I checked all the fluids, seems to be ok. Also, when you turn the HVAC on, the shaking is even worse. Has this ever happened to anyone before? PLEASE LET ME KNOW. My gf needs her car for school and the sooner i know what the prob is the sooner i can fix it or have it looked at. BTW, the SERVICE ENGINE LIGHT is on too. After its on for a while it wil start to blink. THANKS Quote Link to comment Share on other sites More sharing options...
Alex1647545498 Posted January 3, 2005 Report Share Posted January 3, 2005 If the service engine light is on then there's a code to be pulled. Try Advance Auto or Autozone to get the code read for free. That would be a good place to start. Quote Link to comment Share on other sites More sharing options...
Ziggy1647545504 Posted January 4, 2005 Report Share Posted January 4, 2005 Had a similar problem on my wife's Contour (2.5 Duratec v6) found out it needed plug wires. Nifty thing on that engine, you have to take the upper intake manifold loose from the car to get to the rear plugs. Changed wires and plugs, problem went away. Quote Link to comment Share on other sites More sharing options...
TurboRust Posted January 4, 2005 Report Share Posted January 4, 2005 Originally posted by CR Caddy: Had a similar problem on my wife's Contour (2.5 Duratec v6) found out it needed plug wires. Nifty thing on that engine, you have to take the upper intake manifold loose from the car to get to the rear plugs. Changed wires and plugs, problem went away. bah you did it the hard way. theres no need to pull the intake on a duratec, just remove the coil pack and you have loads of access. lemme know if you want help in the future Quote Link to comment Share on other sites More sharing options...
armin922 Posted January 5, 2005 Author Report Share Posted January 5, 2005 fixed problem. Took it to advanced auto parts to get the codes pulled, and found out cylinder 5 had a misfire so we changed the plugs and wires. FIXED THE PROBLEM. BUT THANKS ALOT Quote Link to comment Share on other sites More sharing options...
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