MY CAR SHAKES ONLY AT A CONSTANT SPEED BUT GOES ...

  • Tiny
  • Anonymous
  • 1989 PONTIAC BONNEVILLE
  • 135,000 MILES

My car shakes only at a constant speed but goes away when I accelerate or let off the gas. Also it's not getting full power like it should. I just replaced the starter, plugs, wires and harmonic balancer within the last month. Tomorrow im goin to check my plugs and wires so I only hope thats what it is, if anyone has a guess what it is plz tell me. Thank you

Wednesday, December 19th, 2012 AT 6:01 AM

1 Reply

  • Tiny
  • ASEMaster6371
  • EXPERT
  • 25,554 POSTS

You said you just replaced the plugs and wires?

Check fuel pressure and back pressure from cat converter

Roy

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Wednesday, December 19th, 2012 AT 11:44 AM

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