Yet Another Cooling System Question...

Lincoln LS

  1. rgorke

    rgorke Well-Known LVC Member

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    Camarillo, CA
    2004 V8 Premium Sport

    Entire cooling system has been replaced over the past 3 years: Degas 9/15, T-Stat 12/15, Radiator 12/16, Upper and lower hoses, 12/15. Most recently 9N499, crosspipe, water pump, and throttle body hoses (I won't go into the harmonic balancer issue.) Of course, I bleed the system 3 times and opened bleed valve 6-8 times when hot to ensure all air is out. I also just installed a new degas cap that fits much more snuggly that "old" one which is only 3 years old. Tighten it down to one "click".

    Now, this morning is indicative of what I have seen a few times. Taking spawn to school (2-3 mile drive) the temp gets to 207 and stays. I pulled over after dropping him off and while sitting idling for 6-8 mins, the temp climbs to 221. I start heading back home and within 3 mins the temp drops to 219 to 214 to 207 to 203, then back up to 210 to 215. This isn't freeway driving, it is city streets at 40-45 with several signals.

    I don't see any coolant loss other than the amount from opening the bleeder.

    Where do I look next? I hear the fan but not going hard. The A/C works well while sitting idling. The Gen 2 fan only has the two electrical connectors on the driver's side, right?

    Am I just obsessing? I have seen where others have their coolant temp in the 200-210 range and even under 200.
     
  2. joegr

    joegr Dedicated LVC Member

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    I think that 220ish at idle is okay, but it usually is very hot here.
    2003-2004 have two connectors, 2005-2006 have one.
     
  3. rgorke

    rgorke Well-Known LVC Member

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    Ok, just took it out to run a couple errands and stayed at 203-207 then up to 212 after the third stop.

    I must be obsessing....
     

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