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  1. #26
    Member ptowntsi's Avatar
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    Justin to the rescue- From a compilation on the ZJ 5.9 fan I made.

    Note that GM also has a 200 degree thermostatic switch (perfect for use
    with a 180 degree thermostat) available under p/n 3053190 was used on 84 Z28’s and 86-87 turbo Buicks, GM discontinued it, then brought it back under 15326386, but there is STANDARD MOTOR PRODUCTS Part # TS136 and also AC-Delco part "213-928

    Theres a guy selling them on ebay for like $10 bucks with free shipping. Kragen can order you one for $21 too.
    5.9 Magnum Powered ZJ Limited. The Pinnacle of Perfection.

  2. #27
    Chris Jeep98ZJ's Avatar
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    SWEET! Plug and play? Will it work ok with a tock 195 t-stat?
    Platinum 5.9 167K when i bought her. 2.25" engine pipes 3" Magnaflow cat, 3" Hooker Aerochamber, 3" tail pipe, Ported kegger, 52MM Throttle Body, 24lb ford injectors, K&N drop in filter, Cast JEEP valve covers, MSD coil and wires, All new 6 piece clear light kit, 255/65/16 General Grabber HTS, 242 conversion, XJ u-joint front axle shafts

    96 Dodge Ram 1500, 5.2, picked up 12/3/13, 191K miles, edelbrock air cleaner, dual catback exhaust, headers, 50MM TB, 26,000 GVW tranny cooler, 4" lift, 35" General Grabber AT2 tires on Mickey Thompson Classic wheels.

  3. #28
    Steve Jobs Residential Teabagger Redsand's Avatar
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    Quote Originally Posted by Ninergrad View Post
    I went to the dealer to find out how much the low and high switch would cost.
    They do not carry it anymore and cannot get it...
    Does that sound right?
    yes, which is why i had to replace the WHOLE fan. not cheap, but whatever.
    -Chris-

    I have a Jeep



  4. #29
    Chris Jeep98ZJ's Avatar
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    I found one. Last one in the country. $95.00
    Platinum 5.9 167K when i bought her. 2.25" engine pipes 3" Magnaflow cat, 3" Hooker Aerochamber, 3" tail pipe, Ported kegger, 52MM Throttle Body, 24lb ford injectors, K&N drop in filter, Cast JEEP valve covers, MSD coil and wires, All new 6 piece clear light kit, 255/65/16 General Grabber HTS, 242 conversion, XJ u-joint front axle shafts

    96 Dodge Ram 1500, 5.2, picked up 12/3/13, 191K miles, edelbrock air cleaner, dual catback exhaust, headers, 50MM TB, 26,000 GVW tranny cooler, 4" lift, 35" General Grabber AT2 tires on Mickey Thompson Classic wheels.

  5. #30
    Member ptowntsi's Avatar
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    why'd you do that? Its a 213* degree switch and you could have had a 200* one for $20 bucks.
    5.9 Magnum Powered ZJ Limited. The Pinnacle of Perfection.

  6. #31
    Chris Jeep98ZJ's Avatar
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    I didnt buy it. I just located it. Im not sure what im doing yet. Id like to stick more around 210* I dont think a 200* switch with a 195* stat will work well. Fan will be on all the time. With a 180* stat ill never have heat on a 20* day.
    Platinum 5.9 167K when i bought her. 2.25" engine pipes 3" Magnaflow cat, 3" Hooker Aerochamber, 3" tail pipe, Ported kegger, 52MM Throttle Body, 24lb ford injectors, K&N drop in filter, Cast JEEP valve covers, MSD coil and wires, All new 6 piece clear light kit, 255/65/16 General Grabber HTS, 242 conversion, XJ u-joint front axle shafts

    96 Dodge Ram 1500, 5.2, picked up 12/3/13, 191K miles, edelbrock air cleaner, dual catback exhaust, headers, 50MM TB, 26,000 GVW tranny cooler, 4" lift, 35" General Grabber AT2 tires on Mickey Thompson Classic wheels.

  7. #32
    Member ptowntsi's Avatar
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    you'll heat up just fine with the 180. I've taken my jeep up to Tahoe in 0* weather with a 180 stat and it heats up. The temp of the stat won't effect how long it takes to get warm. when its really cold out you run at pretty much 180, if you want to run a little warmer, block off a portion of your radiator. I do that in the winter.
    5.9 Magnum Powered ZJ Limited. The Pinnacle of Perfection.

  8. #33
    Chris Jeep98ZJ's Avatar
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    Is that chevy switch plug and play? Same plug? Whats the thread on the switches?
    Platinum 5.9 167K when i bought her. 2.25" engine pipes 3" Magnaflow cat, 3" Hooker Aerochamber, 3" tail pipe, Ported kegger, 52MM Throttle Body, 24lb ford injectors, K&N drop in filter, Cast JEEP valve covers, MSD coil and wires, All new 6 piece clear light kit, 255/65/16 General Grabber HTS, 242 conversion, XJ u-joint front axle shafts

    96 Dodge Ram 1500, 5.2, picked up 12/3/13, 191K miles, edelbrock air cleaner, dual catback exhaust, headers, 50MM TB, 26,000 GVW tranny cooler, 4" lift, 35" General Grabber AT2 tires on Mickey Thompson Classic wheels.

  9. #34
    Member ptowntsi's Avatar
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    its the same exact plug and thread. plug n play. umm its a 3/8" NPT. but the socket to get it off is a deep 22mm. I used a 7/8" wrench in a pinch on the sensor body with vice grips on the outer area. That is actually a 32mm, so if you have a huge 32mm wrench that would work too, but vice grips got the job done.

    I thought for the longest time my low temp was broken since it didn't kick on til just a hair past 210, then i found out that is low kicking on. If high kicks on its gotta be way up there.
    5.9 Magnum Powered ZJ Limited. The Pinnacle of Perfection.

  10. #35
    Chris Jeep98ZJ's Avatar
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    Low kicks on at 213 stock high kicks on at i believe 220 stock
    Platinum 5.9 167K when i bought her. 2.25" engine pipes 3" Magnaflow cat, 3" Hooker Aerochamber, 3" tail pipe, Ported kegger, 52MM Throttle Body, 24lb ford injectors, K&N drop in filter, Cast JEEP valve covers, MSD coil and wires, All new 6 piece clear light kit, 255/65/16 General Grabber HTS, 242 conversion, XJ u-joint front axle shafts

    96 Dodge Ram 1500, 5.2, picked up 12/3/13, 191K miles, edelbrock air cleaner, dual catback exhaust, headers, 50MM TB, 26,000 GVW tranny cooler, 4" lift, 35" General Grabber AT2 tires on Mickey Thompson Classic wheels.

  11. #36
    Member NoTime's Avatar
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    Humm,,, I might take the stock top hose sensor ( 213 ) and put it in place of the bottom hose ( high 220? ) then get the AC Delco one and put it in the Top Hose for Low speed ( 200 )

    Yes with the 180 Thermostat. Might help at the track with the "Hot Laps"
    1998 ZJ 5.9 Platinum - 408 SC Sleeper ( 7.49 / 11.? )
    2012 RAM - Tow Vehicle
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  12. #37
    Modfag Saleen4971's Avatar
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    that was my exact thought as well

    except im not putting a GM sensor in my car, itll break as all GM crap does
    Ross
    1998 Grand Cherokee 5.9 Limited
    MPP Headers - Thunderbolt Metallic Cat - 3" Mag catback - EBC Brakes w/ drilled Rotors - 4bbl M1 - Vortech 12psi - Built trans & 2900 stall - Ford 8.8 - Addco & Hellwig Sways - Poly Bushings - H&R Springs - Grabber UHP Tires - Alpine/Infinity Stereo - FX-R BiXenon Retrofit

  13. #38
    Chris Jeep98ZJ's Avatar
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    ^ STFU Ford lover! Dont touch it! You might get ford on you!
    Platinum 5.9 167K when i bought her. 2.25" engine pipes 3" Magnaflow cat, 3" Hooker Aerochamber, 3" tail pipe, Ported kegger, 52MM Throttle Body, 24lb ford injectors, K&N drop in filter, Cast JEEP valve covers, MSD coil and wires, All new 6 piece clear light kit, 255/65/16 General Grabber HTS, 242 conversion, XJ u-joint front axle shafts

    96 Dodge Ram 1500, 5.2, picked up 12/3/13, 191K miles, edelbrock air cleaner, dual catback exhaust, headers, 50MM TB, 26,000 GVW tranny cooler, 4" lift, 35" General Grabber AT2 tires on Mickey Thompson Classic wheels.

  14. #39
    Chris Jeep98ZJ's Avatar
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    OK So someone tell me what problem i will have with using the GM switch at 200* and leaving my 195* stat in place? Fan on all the time? To much presure in the block?
    Platinum 5.9 167K when i bought her. 2.25" engine pipes 3" Magnaflow cat, 3" Hooker Aerochamber, 3" tail pipe, Ported kegger, 52MM Throttle Body, 24lb ford injectors, K&N drop in filter, Cast JEEP valve covers, MSD coil and wires, All new 6 piece clear light kit, 255/65/16 General Grabber HTS, 242 conversion, XJ u-joint front axle shafts

    96 Dodge Ram 1500, 5.2, picked up 12/3/13, 191K miles, edelbrock air cleaner, dual catback exhaust, headers, 50MM TB, 26,000 GVW tranny cooler, 4" lift, 35" General Grabber AT2 tires on Mickey Thompson Classic wheels.

  15. #40
    Member ptowntsi's Avatar
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    even with the 180 in there, the gm fan switch is coming on sooner than I thought it would.

    keep this in mind, the upper radiator hose has coolant coming FROM the engine, (so it will be hotter) than the lower one, which has it coming out of the radiator.

    I like the idea of putting the 213 degree switch in the bottom location a lot. 220 is way too hot.

    But i'm thinking now that the GM switch is turning on too soon, I will have to test it in a pot of water, or maybe our dash gauges are just really that far off. Its coming on at the mark before the 210.
    5.9 Magnum Powered ZJ Limited. The Pinnacle of Perfection.

  16. #41
    Chris Jeep98ZJ's Avatar
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    How about this idea. Forget the low speed all together. Use the 200* switch in the lower hose on high speed. It will come on a little later that way and may be perfect. High speed also wont need to be on as long to cool the engine. Thoughts?
    Platinum 5.9 167K when i bought her. 2.25" engine pipes 3" Magnaflow cat, 3" Hooker Aerochamber, 3" tail pipe, Ported kegger, 52MM Throttle Body, 24lb ford injectors, K&N drop in filter, Cast JEEP valve covers, MSD coil and wires, All new 6 piece clear light kit, 255/65/16 General Grabber HTS, 242 conversion, XJ u-joint front axle shafts

    96 Dodge Ram 1500, 5.2, picked up 12/3/13, 191K miles, edelbrock air cleaner, dual catback exhaust, headers, 50MM TB, 26,000 GVW tranny cooler, 4" lift, 35" General Grabber AT2 tires on Mickey Thompson Classic wheels.

  17. #42
    Member ptowntsi's Avatar
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    its a possibility, if you want low speed, turn the a/c button on. that turns on low speed. I've been doing this to keep my temp below the standard fan turn on point before i put in the GM sensor. I'm not liking this fan running so much. will wear out motor.
    5.9 Magnum Powered ZJ Limited. The Pinnacle of Perfection.

  18. #43
    Chris Jeep98ZJ's Avatar
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    I put the GM switch in mine today. Ill see how it works over the next few days. If i dont like it ill put the switch in the lower hose and test that. Worst case i have the switch from BeCool. 210* on it's a single terminal so it needs to be grounded some other way. Now you said this GM switch kick son at 200* when does it shut off?
    Platinum 5.9 167K when i bought her. 2.25" engine pipes 3" Magnaflow cat, 3" Hooker Aerochamber, 3" tail pipe, Ported kegger, 52MM Throttle Body, 24lb ford injectors, K&N drop in filter, Cast JEEP valve covers, MSD coil and wires, All new 6 piece clear light kit, 255/65/16 General Grabber HTS, 242 conversion, XJ u-joint front axle shafts

    96 Dodge Ram 1500, 5.2, picked up 12/3/13, 191K miles, edelbrock air cleaner, dual catback exhaust, headers, 50MM TB, 26,000 GVW tranny cooler, 4" lift, 35" General Grabber AT2 tires on Mickey Thompson Classic wheels.

  19. #44
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    Here is the cooling fan chart.


    The fan switch will open just below the turn on temp, they don't have a fixed on/off range specification like you would have with a thermostat.

    The factory switch in mine at idle will turn the fan on for 10-15 seconds then shut it off for 45-60 seconds and works fine with my 180 thermostat.

  20. #45
    Chris Jeep98ZJ's Avatar
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    Our problem is the low speed switch in the upper hose went bad. That switch is no longer made so we are trying to improvise. It will take a little playing around with we'll get it.
    Platinum 5.9 167K when i bought her. 2.25" engine pipes 3" Magnaflow cat, 3" Hooker Aerochamber, 3" tail pipe, Ported kegger, 52MM Throttle Body, 24lb ford injectors, K&N drop in filter, Cast JEEP valve covers, MSD coil and wires, All new 6 piece clear light kit, 255/65/16 General Grabber HTS, 242 conversion, XJ u-joint front axle shafts

    96 Dodge Ram 1500, 5.2, picked up 12/3/13, 191K miles, edelbrock air cleaner, dual catback exhaust, headers, 50MM TB, 26,000 GVW tranny cooler, 4" lift, 35" General Grabber AT2 tires on Mickey Thompson Classic wheels.

  21. #46
    Chris Jeep98ZJ's Avatar
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    OK well from what i find the 200* switch idea does not work. Turns the fan on and it never shuts off. The part ptowntsi recommends is actually a sending unit for a gauge NOT a fan switch. I have a friend at autozone so i went into the back and got every single fan switch they sell. All different kinds wasnt worried about plug and play. I have a digital thermometer in a bot of water on the stove and none work the way we need. Only one i have found that works right i BeCool part # 75009 Rated at 210* on and off at 190* In my testing it's on at 206* and off at 193* I have not yet tested it in my jeep yet but i will soon and i will report back. If anyone has any other ideas please do tell. The BeCool switch will set you back $50 id much rather find a $15 over the counter switch.
    Platinum 5.9 167K when i bought her. 2.25" engine pipes 3" Magnaflow cat, 3" Hooker Aerochamber, 3" tail pipe, Ported kegger, 52MM Throttle Body, 24lb ford injectors, K&N drop in filter, Cast JEEP valve covers, MSD coil and wires, All new 6 piece clear light kit, 255/65/16 General Grabber HTS, 242 conversion, XJ u-joint front axle shafts

    96 Dodge Ram 1500, 5.2, picked up 12/3/13, 191K miles, edelbrock air cleaner, dual catback exhaust, headers, 50MM TB, 26,000 GVW tranny cooler, 4" lift, 35" General Grabber AT2 tires on Mickey Thompson Classic wheels.

  22. #47
    Member ptowntsi's Avatar
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    That is strange the switch is called a sending unit. because the part no. was originally this.

    " The Chevrolet Raceshop’s Mark McPhail suggested we take that route and sent us a switch (p/n 3053190) used on some GM export products. This unit has the lowest fan-on temperature, 203F, of any GM fan switch we’ve found."

    that was replaced with the part No I listed earlier AC -Delco 213-928.

    also listed on gm parts direct as a cooling fan switch.

    http://www.gmpartsdirect.com/perform...ATID=1099.html
    5.9 Magnum Powered ZJ Limited. The Pinnacle of Perfection.

  23. #48
    Chris Jeep98ZJ's Avatar
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    It does act a a switch but it turns on and never turns off. 200* is just to low. The cooling system never even presurizes. 30 min drive opened the rad cap didnt loose a drop
    Platinum 5.9 167K when i bought her. 2.25" engine pipes 3" Magnaflow cat, 3" Hooker Aerochamber, 3" tail pipe, Ported kegger, 52MM Throttle Body, 24lb ford injectors, K&N drop in filter, Cast JEEP valve covers, MSD coil and wires, All new 6 piece clear light kit, 255/65/16 General Grabber HTS, 242 conversion, XJ u-joint front axle shafts

    96 Dodge Ram 1500, 5.2, picked up 12/3/13, 191K miles, edelbrock air cleaner, dual catback exhaust, headers, 50MM TB, 26,000 GVW tranny cooler, 4" lift, 35" General Grabber AT2 tires on Mickey Thompson Classic wheels.

  24. #49
    Member ptowntsi's Avatar
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    well thats not a very good switch then, LOL. It turns on but doesn't turn off?? That was definitely not what I was told.
    5.9 Magnum Powered ZJ Limited. The Pinnacle of Perfection.

  25. #50
    Chris Jeep98ZJ's Avatar
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    Its not a switch lol it may act as a switch to turn the fan on but does not turn back off. Im going back to my 195* stat as soon as i find a witch that works the way i want it to. I may try the BeCool switch but i think even that will be on to long and to often with a 195* stat. on 206 off 193 we'll see
    Platinum 5.9 167K when i bought her. 2.25" engine pipes 3" Magnaflow cat, 3" Hooker Aerochamber, 3" tail pipe, Ported kegger, 52MM Throttle Body, 24lb ford injectors, K&N drop in filter, Cast JEEP valve covers, MSD coil and wires, All new 6 piece clear light kit, 255/65/16 General Grabber HTS, 242 conversion, XJ u-joint front axle shafts

    96 Dodge Ram 1500, 5.2, picked up 12/3/13, 191K miles, edelbrock air cleaner, dual catback exhaust, headers, 50MM TB, 26,000 GVW tranny cooler, 4" lift, 35" General Grabber AT2 tires on Mickey Thompson Classic wheels.

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