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Engine Vacuum question ?

Discussion in 'Other Rides' started by TX Mudder, Dec 27, 2001.

  1. TX Mudder

    TX Mudder 1/2 ton status

    Jul 10, 2000
    Likes Received:
    My wife drive a 1998 Chrysler CIrrus with the 6.
    It has a vacuum leak with the EGR hooks up to the manifold. I have to wait for a part before I can fix it and it will take some time.
    In the meantime, her gas mileage has plummeted as fast as Christina Aguilero's career. From the 30's to the 20's.
    Does a vacuum leak cause poor mileage on a computer controller car like hers? I really don't mess with cars with too many wires so i don't know.
    -- Mike

    <font color=blue> Married to a woman who understands the need for <font color=orange>Hugger Orange. [​IMG] <font color=blue>
  2. The_Sandman_454

    The_Sandman_454 1/2 ton status

    Sep 9, 2001
    Likes Received:
    Michigan, USA
    I think it should make the mileage go down. The computer would sense a lean condition, enrich the fuel mixture to try to compensate, but since the leak is probably causing the extra fuel to not atomize properly it's driving the mileage down.

    That's how I understand the system anyhow...

    &lt;img src="http://bbs.off-road.com/wwwthreads_uploads/53-559733-usflaglargesm.jpg"&gt;
    <font color=red>"Don't Tread on Me"</font color=red>

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