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Will a thermostat go slowly?

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    Will a thermostat go slowly?

    I noticed today my car only got up to 180 on the way in. It's usually is closer to 190.
    2000 Grand Marquis LS
    2000 F150 XLT 6 inches of lift.
    1987 Bill Blass Mark VII - Sold
    1985 Mercury Grand Marquis Colony Park- SOLD. to a little old lady
    Mercury Owners Group member
    Save The Whales, Restore an Old Station Wagon!!

    #2
    They can get sticky and either not close or not open properly. If its original, its probably due for replacement.
    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

    Comment


      #3
      Thanks, I am planning some tuneup stuff soon, so I will add that.
      2000 Grand Marquis LS
      2000 F150 XLT 6 inches of lift.
      1987 Bill Blass Mark VII - Sold
      1985 Mercury Grand Marquis Colony Park- SOLD. to a little old lady
      Mercury Owners Group member
      Save The Whales, Restore an Old Station Wagon!!

      Comment


        #4
        Stick with the stock thermostat, around 194*. My 302s always ran best in that range. If you go with the 160* stat the computer will keep dumping fuel trying to get up to temp.
        2011 Mustang GT Premium, MT82, Kona/Saddle, HIDs, 3.73s, 19s, hood/side stripes, UPR 1.5" springs with adjustable panhard bar, and UMI solid LCAs and relocation brackets.
        1992 Explorer Eddie Bauer, slight lift, 34s, and A/C...
        1979 Bronco Custom, 351M/C6/NP205, 4" lift, 35s, lots of fender trimming.

        Comment


          #5
          Thanks

          Will a higher or lower tend to cause detonation? When I first got her she'd ping on uphills before it would down shift. I bumped the timing some that cured that and recently I adjusted the trans to downshift sooner. I need to recheck my timing, but need to get a timing light again.
          2000 Grand Marquis LS
          2000 F150 XLT 6 inches of lift.
          1987 Bill Blass Mark VII - Sold
          1985 Mercury Grand Marquis Colony Park- SOLD. to a little old lady
          Mercury Owners Group member
          Save The Whales, Restore an Old Station Wagon!!

          Comment


            #6
            I believe if it runs too hot it can cause detonation, but let one of the others with more experience (Mike, Scott, Johnnie, etc) chime in on that.
            2011 Mustang GT Premium, MT82, Kona/Saddle, HIDs, 3.73s, 19s, hood/side stripes, UPR 1.5" springs with adjustable panhard bar, and UMI solid LCAs and relocation brackets.
            1992 Explorer Eddie Bauer, slight lift, 34s, and A/C...
            1979 Bronco Custom, 351M/C6/NP205, 4" lift, 35s, lots of fender trimming.

            Comment


              #7
              Excess heat can make it ping, yes. If your car has a tendency to run hot you can use a 180 tstat but I wouldn't go any cooler. The motor actually wears less at warmer temps believe it or not.
              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

              Comment


                #8
                It has never been hot since I added the gauge. I think it probably has to to with the CFI running lean at WOT that was discussed in another thread. I just want to tune it the best I can to maximize my gas mileage.
                2000 Grand Marquis LS
                2000 F150 XLT 6 inches of lift.
                1987 Bill Blass Mark VII - Sold
                1985 Mercury Grand Marquis Colony Park- SOLD. to a little old lady
                Mercury Owners Group member
                Save The Whales, Restore an Old Station Wagon!!

                Comment

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