Mechanics

PONTIAC BONNEVILLE FUEL PRESSURE PROBLEM

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
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Guest
December 19, 2012.



You said you just replaced the plugs and wires?

Check fuel pressure and back pressure from cat converter

Roy

ASEMaster6371
Dec 19, 2012.