Need HELP with my 94.Please

Discussion in 'RT/10 and GTS Discussions' started by viperman4125, Oct 21, 2017.

  1. viperman4125

    viperman4125 VCA Member - South

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    To those who work on Vipers,
    The short of it;

    Was driving to a Viper Car show in Fl, yesterday, got stuck in heavy stopped traffic, When the Thermostat was way over to the danger Zone,
    Pulled over to cool, when i noticed the Cooling fan was not on. I let the car cool, after traffic was done I drove home.

    Ok, so as i did research, IF it's the Module to the fan , there are none anywhere. Fan motors are seem to be plentiful.

    What is the best advice ??

    Thanks
    Dave
     
  2. Free2go

    Free2go Viper Owner

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    If you don't know anyone in your area, I would call JonB at ViperPartsRack. He'll know who's in your area and where to source parts.
     
  3. viperman4125

    viperman4125 VCA Member - South

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    Thank You ! I will call.
    Dave
     
  4. viperman4125

    viperman4125 VCA Member - South

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    I did talk with John B. He told me to burp the system, did that, didn't work. I put alligator clips on the fan, with power from the battery,the fan works fine ?
    I changed the relay for the Fan's and nothing ?
    The fan will not turn on ? when Thermostat is hot ?
    Should i try to change the Engine coolant temp? Sensor ????
    Dave
     
  5. steve e

    steve e VCA Member - UT/AZ

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    Did you check the fuse box.
     
  6. viperman4125

    viperman4125 VCA Member - South

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    Yes i checked EVERY fuse, Working on doing the Thermostat cooling sensor replacement, when i get a chance,
    Will keep all posted of what i find out.
    Dave
     
  7. MoparMap

    MoparMap VCA Member - West

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    Yeah, another quick thing you can check would be to get a little IR temp gun and shoot the upper radiator hose when the gauge reads hot to see what it thinks "hot" is. That would help to determine if the sensor is reading funny or not. Could very well be the car is never actually getting that hot, the sensor is just starting to drift. Otherwise it sounds like maybe the computer could have a bad transistor that won't trigger the fan anymore. My dad just had this happen on a Dodge Stealth with the fuel pump. The pump and relay were fine, but the transistor in the ECU had gone and wasn't triggering the system anymore.
     
  8. viperman4125

    viperman4125 VCA Member - South

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    Ok,
    Here is where I am at now.
    After talking with Indy -Steve and Jon B is / was very helpful with FREE information btw,
    I ended up replacing the Coolant Temp sensor and which was a bi--tch to get too, that's when i discovered that one of the bypass hose was going bad, is when I called Jon B to buy a set. not cheap.

    I filled the tank with coolant, and the recovery bottle up as well, burbled it the best that i could, started the car, the temp when up, the FAN CAME ON!! YIPPEE! THAT WAS MY GOAL.

    IT WAS THE COOLANT SENSOR AFTER ALL. TY TO ALL FOR THIS HELP!

    However NOW the temp gauge is reading in the yellow, I'm letting the car cool, going to burb it again.
    Q: How do i get all of that air out now.
     
  9. ViperJeff

    ViperJeff VCA Legacy Member - UT/AZ Staff Member

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    Happy the first issue is resolved
     
  10. viperman4125

    viperman4125 VCA Member - South

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    Thanks to all!

    Bottom line, had to replace 2 relays and cooling sensor and brub the system at least 5 times. Run, re-fill, cool down, 5 times.
    My baby is all good now!
    Dave
     
  11. ViperJeff

    ViperJeff VCA Legacy Member - UT/AZ Staff Member

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    Outstanding
     
  12. Steve-Indy

    Steve-Indy VCA Member - Great Lakes

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    Great, Dave...the best to you !!
     
  13. seniorstorekeeper

    seniorstorekeeper Enthusiast

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    My 93 Viper was doing the same thing, in traffic or just sitting there would get hot, noticed the cooling fan was just barely turning or not at all, just took a long wooden handle out of a broom and tapped the fan motor 4 or 5 times, it broke it loose and has been working for the last 8 months. Guess it does this from sitting so long and not running, brushes in motor will stick.
     

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