Installing an aftermarket temp gauge

Discussion in 'Gasoline Engines' started by IDIPlowBoy, Mar 3, 2014.

  1. IDIPlowBoy

    IDIPlowBoy Registered User

    Age:
    24
    Posts:
    18
    Likes Received:
    0
    Joined:
    Oct 22, 2013
    Location:
    Illinois
    Hello, I am looking to install an aftermarket temp gauge into my 1997 Dodge Ram with 8.0 engine. I was wondering where do I hook it up to on the engine. Is it where the stock sensor sending unit is threaded in on top of the thermostat housing? I someone could give me some info, I would really appreciate it. Thanks and have nice day
     
  2. aofarrell2

    aofarrell2 Turbo Desirous

    Posts:
    194
    Likes Received:
    0
    Joined:
    Feb 16, 2013
    Location:
    IA
    An aftermarket temp gauge comes in two types. One that is mechanical and the other is electronic. You will want the electronic one

    Your truck should have two temperature sensors. One sends the coolant temp to the PCM, and the other sends the temp to the gauge. You want to replace the one that goes to the gauge with the electronic gauges sending unit. The temp sender that sends to the gauge will have ONLY ONE terminal in it! That's the one you want to replace. Exactly where it is on the engine I don't know unfortunately because I don't have a V10. but that should help you identify it.
     
  3. IDIPlowBoy

    IDIPlowBoy Registered User

    Age:
    24
    Posts:
    18
    Likes Received:
    0
    Joined:
    Oct 22, 2013
    Location:
    Illinois
    I know exactly where the stock temp gauge sending unit is. It is actually pretty conveniently placed on the top of the thermostat housing which is right on top of the engine. I have never installed aftermarket gauges before and I have not had a chance to go to an auto store yet. Do aftermarket gauges come with different fittings for attachment?
     
  4. aofarrell2

    aofarrell2 Turbo Desirous

    Posts:
    194
    Likes Received:
    0
    Joined:
    Feb 16, 2013
    Location:
    IA
    Some do, some don't. If it doesn't, you can get adaptors fairly easily, they are probably NPT threads. Just take your current sensor or have the parts store grab one off of the shelf.
     
  5. theguruat12

    theguruat12 Certified Tinkerer Supporting Member

    Posts:
    573
    Likes Received:
    0
    Joined:
    Jun 3, 2012
    Location:
    Albuquerque, New Mexico
    You could also put a threaded tee fitting in to keep the stock gauge doing SOMETHING
     
  6. 79jasper

    79jasper Chickenhawk

    Age:
    25
    Posts:
    13,869
    Likes Received:
    401
    Joined:
    Oct 13, 2012
    Location:
    Collinsville, Oklahoma
    Being a gasser, I would keep the factory one hooked up.
    Pretty sure it'll change timing and fueling.


    Sent from my iPhone using Tapatalk
     
  7. aofarrell2

    aofarrell2 Turbo Desirous

    Posts:
    194
    Likes Received:
    0
    Joined:
    Feb 16, 2013
    Location:
    IA
    On his it won't. There are two temp sensors. One sends to the PCM the other to the gauge. If he gets the gauge sensor it won't affect the engine at all as the PCM gets it's signal from the other sensor.

    Sent from my HTC Hero S using Tapatalk 2
     
  8. 79jasper

    79jasper Chickenhawk

    Age:
    25
    Posts:
    13,869
    Likes Received:
    401
    Joined:
    Oct 13, 2012
    Location:
    Collinsville, Oklahoma
    Ah, gotcha. Wasn't sure.
    Have a little bit of Chrysler experience, just not newer trucks.


    Sent from my iPhone using Tapatalk
     
  9. aofarrell2

    aofarrell2 Turbo Desirous

    Posts:
    194
    Likes Received:
    0
    Joined:
    Feb 16, 2013
    Location:
    IA
    In 1998.5 they went to one sensor, as that is when they got the new PCM, interior, etc.

    Some 1994 trucks used only one sensor as well, but they are rare.

    Sent from my HTC Hero S using Tapatalk 2
     
  10. Bashby

    Bashby Full Access Member

    Posts:
    231
    Likes Received:
    0
    Joined:
    Aug 29, 2011
    Location:
    Charles Town WV
    Mm I
     

Share This Page