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Thread: Gremlins

  1. #1
    Join Date
    Oct 2020
    Location
    Utah
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    Default Gremlins

    So about two weeks ago the 2009 Q1 would die every time Iíd put the clutch in down shifting from 2nd to first coming to a stop. Battery light and oil light would then illuminate. Car would start up and off I would go to home. Checked things out and canít figure out whatís going on so park it and I just drive it for the first time since. I start the car, it shoots up and isles at 2k RPM. Then cam down tho 1200 then 1000 then 800 and up to 1200 again then die. Same lights illuminated once again. I get it started again and it runs rough around the neighborhood. Died twice in 8 blocks at two stops in neighborhood. Got it feathered home pull in the drive, before putting clutch in it dies. Any thoughts on what this could be!?!?!? Thanks everyone. Canít wait to get it figured out to enjoy some fall drives in Utah!

  2. #2
    Join Date
    Feb 2014
    Location
    California
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    Default

    $50 on IACV (idle air control valve), $10 on damaged MAF sensor (once I had a piece of hose stuck in it with similar symptoms)

  3. #3
    Join Date
    Oct 2020
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    Any idea on what part numbers or where my best source of finding them both is? Rather just change both out and hopefully thatís all it is. Thank you!

  4. #4

    Default

    This will sound strange, but does it do it while you are pointed downhill by chance? Mine used to do that all the time, I replaced my MAF with a MAP sensor and I have not had issues since. The MAF should have a part number on the back of it, if you look for one that works for a 2003 Ford Escape that would be the one you need.

  5. #5
    Join Date
    Oct 2020
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    Utah
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    Jdunstan: It does it at any pitch/angle. Had a coolant flush and oil change done done about 200-250 miles before this started. I am somewhat wondering if I need to replace spark plugs too just to be safe on that side too. Thank you for the info. I will get to searching for the MAF sensor! Thanks again everyone!

  6. #6
    Join Date
    Apr 2007
    Location
    California
    Posts
    308
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    Default

    For high idle, and RPM undershoot on return-to-idle, the first things I’d check for are vacuum leaks. Second thing I’d check on a Rossion would be a contaminated MAF - you may want to remove the MAF element and give it a good spray with MAF cleaner (you can usually find MAF cleaner at the auto parts store). Changing spark plugs on a regular basis should be part of your normal scheduled maintenance routine. Just be sure to use the correct plug (DO NOT USE PLATINUM PLUGS), and gap them properly.

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