Question about Isuzu i-290

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Wont start unit acts flooded...After waiting ten minutes it will start fine. Have changed spark plugs, air filter and run several cans of Sea Foam through engine seems to idle a little slow [approx. 700 rpms]

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: runs sluggish at start up.

  • Possible vacuum line related, suspect problem was related to EGR valve, as this was replaced Nov 07. Problem came back this past weekend. noted vacuum line to EGR valve had no vacuum. I removed device-located top front side of the engine near serpentine belt, noted foam filter inside-cleaned filter reassembled and problem cleared. I believe this device (part of emissions System, investigating official name) may be the culprit. This device has two vacuum lines coming in and 1 electrical connection obove the serpentine belt. with the foam filter removed I was able to stall out the engine by placing my finger over the orfice (care-full of the fan belt). This must be an electrical solenoid that goes intermittent.
  • Posted on Jul 28, 2008

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    • 58 Answers

    SOURCE: 91 LEGACY STARTED RUNNING ROUGH

    The cylinders are numbered as on the spark pack you changed. You might have done better putting the seafoam in the tank as an injector cleaner. Not sure why you changed so many parts, you seem to know how to get the codes from test connector lead hookup and the blink pattern. You might also want to check the fuel rail pressure and the crank and cam angle sensors. Before replacing the injector, swap the #4 injector with the adjacent one and see it the code moves with the injector or stays put. If the code stays on #4, then check the injector wiring, if it moves clean or replace the injector.

    Posted on Mar 21, 2009

    • 14036 Answers

    SOURCE: After washing truck check engine light came on.

    let up hood let it idle to dry watch the check engine light . it should be okay.let it idle it will smooth out.

    Posted on Apr 12, 2009

    alorange
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    SOURCE: Ford Taurus 2005 model. Too high rpms in idle.

    check tps senser

    Posted on Feb 11, 2010

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    SOURCE: PO651 code 2004 Sierra 1500 5.3

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    Posted on Apr 14, 2010

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