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Thread: 1999 Mercury Mountaineer 5.0 V8 hard to start (98K Miles)

  1. #1
    Captain Coleman
    Guest Captain Coleman's Avatar

    Default 1999 Mercury Mountaineer 5.0 V8 hard to start (98K Miles)

    Spark plug wires?

    "Eeyore" <hee@haw.com> wrote in message
    news:CMKdnfiV-Ib3FU_ZnZ2dnUVZ_tOdnZ2d@adelphia.com...
    > Tell me what you think...
    >
    > '99 Mercury Mountaineer, V-8 5.0L engine, 98K miles.
    >
    > Lately she's been getting harder and harder to start. As in not REAL
    > hard, but she cranks for a good 2 seconds before she catches. Once
    > running, no problems. No recent changes in engine performance or
    > MPG's. But, gradually and consistently taking longer to start, in all
    > conditions. Battery's real strong, so that's not it.
    >
    > I've put in new double platinum spark plugs, had the fuel filter changed,
    > had the local shop perform a fuel-injector cleaning service, replaced the
    > air filter, cleaned out the throttle body (it had the sticky accelerator
    > pedal
    > problem which is now cleared up), put in some fresh Mobil 1 5W-30 and
    > a new filter.
    >
    > I even bought her some new tires then told her how pretty she looks...
    >
    > No change.
    >
    > Any ideas?
    >
    >

  2. #2
    Jimmy the Hand
    Guest Jimmy the Hand's Avatar

    Default 1999 Mercury Mountaineer 5.0 V8 hard to start (98K Miles)

    > Tell me what you think...
    >
    > '99 Mercury Mountaineer, V-8 5.0L engine, 98K miles.
    >
    > Lately she's been getting harder and harder to start. As in not REAL
    > hard, but she cranks for a good 2 seconds before she catches. Once
    > running, no problems. No recent changes in engine performance or
    > MPG's. But, gradually and consistently taking longer to start, in all
    > conditions. Battery's real strong, so that's not it.
    >
    > I've put in new double platinum spark plugs, had the fuel filter changed,
    > had the local shop perform a fuel-injector cleaning service, replaced the
    > air filter, cleaned out the throttle body (it had the sticky accelerator pedal
    > problem which is now cleared up), put in some fresh Mobil 1 5W-30 and
    > a new filter.
    >
    > I even bought her some new tires then told her how pretty she looks...
    >
    > No change.
    >
    > Any ideas?


    A couple to start with. Check fuel pressure at your rack after you
    turn the key on. The fuel pump should run and pressurize the rack
    before you start the vehicle. Also, try to get some resistance
    measurements on your injectors. Maybe you've got an injector that's
    starting to go faulty. Resistance measurements should be listed in any
    DIYers repair manual.

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