When are your fans kicking on?

Discussion in 'SRT Hellcat General Discussions' started by usmc341, Apr 17, 2016.

  1. usmc341

    usmc341 Gold Member

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    Sitting in traffic today noticed the temp gauge creeping up past the half way point. Never noticed it before so I scrolled to coolant temp and it seems like 219 is the magic number where the PCM turns the fans on. Seems a bit high but as soon as she hit that mark coolant temps plummeted. Sound about right?
     
    Last edited: Apr 17, 2016
  2. TallCool1

    TallCool1 Gold Member Hellcat Car Club Gold Supporting Member Nat'l Hellcat Tech Advisor HCC Charter Member

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    Sounds about right amigo.
     
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  3. bigsursteelhead

    bigsursteelhead SRT Hellcat Supporter Gold Supporting Member

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    Noticed mine doing the same thing but funny thing is the temp gage seems twitchy when that happens - then fan comes on - and shortly temp drops. Had my attention first time it did that
     
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  4. tsubahog

    tsubahog Gold Member

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    224 then drops quickly
     
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  5. usmc341

    usmc341 Gold Member

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    If it's anything like the Shelby it has a low speed/high speed loop. Tough to tell these fans are pretty quiet on the Hellcat
     
  6. TallCool1

    TallCool1 Gold Member Hellcat Car Club Gold Supporting Member Nat'l Hellcat Tech Advisor HCC Charter Member

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    2 stage. Was posted long ago but yup.
     
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  7. RammJaeger

    RammJaeger Silver Member

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    I had never heard mine kick on high speed before a couple of days ago. I got up to 222 degrees. The last couple of days I've been watching it, and even when I stop at a stoplight it gets up to 220 or so. Is this normal? I'm thinking about taking it in to get looked at, as I never saw it over halfway before.
     
  8. usmc341

    usmc341 Gold Member

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    From what I'm hearing from other members it's normal. I just never noticed it before. PCM has set parameters and it appears we are all in the same ballpark
     
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  9. Racist Cat

    Racist Cat Silver Member

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    222-224 is what I see daily.

    My house is in a subdivision, and has a fairly long uphill run to the driveway, and I always back in. Usually right about the time I'm slowing down from backing in, the temp is in the 220 range and climbing. Hits about 223 and the fans kick in and pull it down in just a few seconds. I usually open the door and listen to the exhaust rumble and the fans to kick off before shutting down.

    If you drive with the a/c off, you will see higher temps more often since the fans don't have to kick on to cool the condenser.

    However, you will probably have less heat soak. So even though you have higher water temps, you might make more power. I drive with my a/c off whenever possible.
     
    Last edited: Apr 17, 2016
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  10. Mopar Magic

    Mopar Magic Hellcat Member

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    This is what I see as well. It also worried me. 224 seems pretty hot...
     

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