cad98 Posted September 1, 2004 Report Share Posted September 1, 2004 I have now noticed something when my car has a full tank it runs smooth and starts missing when fuel level goes down. No codes could it be fuel pressure or is my pump going bad. This is only present at idle. Link to comment Share on other sites More sharing options...
PAUL T Posted September 1, 2004 Report Share Posted September 1, 2004 Have you checked your spark plugs or the wires for arcing. In the dark spray a mist of water around the wires and see if there is any arcs. How about your fuel filter? Link to comment Share on other sites More sharing options...
Ranger Posted September 1, 2004 Report Share Posted September 1, 2004 I have now noticed something when my car has a full tank it runs smooth and starts missing when fuel level goes down. No codes could it be fuel pressure or is my pump going bad. This is only present at idle. No, I don't think your fuel pump is going bad. If it where bad enough to cause a miss at idle, it would never deliver enough fuel to run at higher RPM's. It would probably fall flat on it's face when you accelerate. I agree with Paul. I would lean toward plugs or wires. Link to comment Share on other sites More sharing options...
cad98 Posted September 1, 2004 Author Report Share Posted September 1, 2004 Well it has new plugs and wires anf the filter is new. Link to comment Share on other sites More sharing options...
franey Posted September 2, 2004 Report Share Posted September 2, 2004 you might check your fuel pressure regulator. Link to comment Share on other sites More sharing options...
jschunke Posted September 2, 2004 Report Share Posted September 2, 2004 Could be a clogged fuel cansister that vents the gas tank. As the fuel drops vacuum is building in the tank. See if the idle improves if the gas cap is removed. Link to comment Share on other sites More sharing options...
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