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Wiper Speed Question

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    Wiper Speed Question

    On my friend's 1988 CV, it appears the wiper blades move at the same speed regardless of any stalk adjustment. Is that an issue with the stalk (multi function switch) or the wiper motor or elsewhere?
    What I Own: 1993 Mercury Grand Marquis GS
    What I Help Maintain: 1996 CV / 1988 CV / 1988 Tempo

    Should be a constant hot and two switched grounds. Looking at the 86 book, yellow/red is hot, dark blue / orange is low speed ground, white is high speed ground. I I'm reading this right, you should get one or the other grounded but not both. Should be easy enough to check with a test light. If the grounds switch but the speed doesn't change, that sounds like motor problems or low voltage on the + side. If it doesn't switch, probably the switch itself is bad.
    86 Lincoln Town Car (Galactica).
    5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley

    91 Lincoln Mark VII LSC grandpa spec white and cranberry

    1984 Lincoln Continental TurboDiesel - rolls coal

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