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engine stalls when I shift to Park

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    engine stalls when I shift to Park

    Lately when I shift to park, my engine often stumbles and sometimes dies completely. It starts right back up if I need to.

    Doesn't seem to matter if the engine is warmed up or not.

    Recent plugs, wires, and air filter change.

    Otherwise the engine runs great, smooth idle, etc. ~88K miles.

    Thoughts on what to look for? Vacuum leak maybe?

    #2
    If your car's fuel injected, might want to look at the idle air control valve and related wiring.
    2012 Mazda5 Touring | Finally working on the LTD again!

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      #3
      Originally posted by 1987cp View Post
      If your car's fuel injected, might want to look at the idle air control valve and related wiring.
      Yeah mine started doing it last week pulled of my month old oreilly brand IAC and put on my 24 year old motorcraft one that wasnt bad when I replaced it and voila no more stalling or fluttering idle.
      2002 Mercury Grand Marquis LSE, Sylvania Zevo LED Headlights, MSD Blaster Coils, K&N Cold Air Intake, Dual Exhaust, 3.27's - Dally Driver

      1983 Lincoln Continental Mark VI, Smog Delete - Summer Cruiser


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        #4
        I usually clean my IAC once or twice a year, haven't had an issue with idling/stalling/etc. yet. *knocks on a piece of wood*
        Summer car-> 1988 Lincoln Town Car, triple blue, 335,xxx km. New HO 5.0 in and running. Bought 2006/08/22. June 2017 PotM!
        Winter vehicle-> 1995 Ford F-250 XLT SuperCab 4x4, 284,xxx+km. AKA "Brutus" 460/E4OD/4.10 axles and 12 MPG. Bought 2019/08/14

        Originally posted by phayzer5
        I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousers

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          #5
          check lines to the MAP sensor
          sigpic


          - 1990 Ford LTD Crown Victoria P72 - the street boat - 5.0 liter EFI - Ported HO intake/TB, 90 TC shroud/overflow, Aero airbox/zip tube, Cobra camshaft, 19lb injectors, dual exhaust w/ Magnaflows, Cat/Smog & AC delete, 3G alternator, MOOG chassis parts & KYB cop shocks, 215/70r/15s on 95-97 Merc rims

          - 2007 Ford Escape XLT - soccer mom lifted station wagon - 3.0 Duratec, auto, rear converter delete w/ Magnaflow dual exhaust

          - 2008 Mercury Grand Marquis Ultimate Edition - Daily driver - 4.6 2 valve Mod motor, 4R75E, 2.73s. Bone stock

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