1. Registration trouble? Please use the "Contact Us" link at the bottom right corner of the page and your issue will be resolved.
    Dismiss Notice

F 134 Temp Sending Unit/Speedo Temp Gauge

Discussion in 'Early CJ5 and CJ6 Tech' started by Fhead Guy, Nov 6, 2005.

  1. Nov 6, 2005
    Fhead Guy

    Fhead Guy Member

    Northern VA
    Joined:
    Apr 29, 2003
    Messages:
    83
    Folks-

    Percival's temp gauge has started going wacko - temp is running up to "H" for no apparent reason, and engine isn't over heating - have checked coolant level, etc.. Can only be the Temp sending unit or the speedo temp gauge. Which one is more prone to failure?

    If it is the gauge (hope not) can this be repaired separately, or do I have to spring for a new speedometer?

    Thanks-

    Eck
     
    Fhead Guy, Nov 6, 2005
    #1
  2. Nov 6, 2005
    Ppilotmike

    Ppilotmike old JEEPer

    Oscoda Mi
    Joined:
    Oct 24, 2003
    Messages:
    142
    Don't know what year your JEEP is, on my 70' the temp gauge is removable from the speedo assembly and I have seen them for sale. Mike
     
    Ppilotmike, Nov 6, 2005
    #2
  3. Nov 6, 2005
    Patrick

    Patrick Super Moderator Staff Member

    Los Alamos, NM
    Joined:
    Sep 22, 2002
    Messages:
    8,360
    Yes, you can replace just the gauge.... Un hook the temp sensor wire, and put it to ground, the gauge should read hot. Pull it away from ground, it should read cold.... If it does this, your sending unit is no good...
     
    Patrick, Nov 6, 2005
    #3
  4. Nov 6, 2005
    Steamer

    Steamer Thick and gritty!

    SW OR
    Joined:
    Oct 17, 2004
    Messages:
    389
    John, there is also a potential problem with your fuel gauge. It has a built in regulator for lower voltage to supply the instruments, and, (I think) the low voltage to the coil. Mine's been screwed up for so long I forget how it all went...... I bought new gauges (cheesy ones, too), and still haven't gotten them right. I haven't spent any time on it since i put them in...........
     
    Steamer, Nov 6, 2005
    #4
  5. Nov 7, 2005
    Fhead Guy

    Fhead Guy Member

    Northern VA
    Joined:
    Apr 29, 2003
    Messages:
    83
    Thanks guys-
     
    Fhead Guy, Nov 7, 2005
    #5
New Posts