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#71
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X5 4.6 2002 Black Sap, Black interior. 2013 X5M Melbourne Red, Bamboo interior Dallas |
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#72
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manual override is the ultimate safety for a failed T-switch
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My "switched" power isn't that...I'll need another, true, switched power circuit. And, since my T-switch is set too high (preset) to trigger the fan relay, I just bought an adjustable (32F-248F) fan controller to be able to trigger the relay on-off automatically, as initially planned. I'll put the sensor in the hottest location the probe will fit into (even if it must go into the cool-ish spot I had previously inserted the other T-switch probe into). Then I'll turn the rheostat down until the coolant reaches 175-180F (as shown on my Torque Pro app monitor), and turns on the fan. I bought the Hayden 3653 adjustable fan controller on a side-trip while shopping for pet supplies (dogs, feral cats, chickens), and getting breakfast at a new-to-us spot. I popped into an O'Reilly's and bought one I'd used before. Can't hurt to try it, for $20.
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01 BMW X5 E53,3.0i-5L40E, 7/13/01 topas-blau,Leder-grau,"resto-project car" Here: 14 Lexus ES350,3.5L-U660E 09 HHR Panel,2.2L-4T45E 04 Chevy 2500HD,6.0L-4L80E 98 GMC Sierra 1500,5.7L-4L60E Gone: 66 Chevelle Malibu 2dr ht.,327>441c.i.-TH350>PGlide/transbrake 08 Cobalt Coupe,2.2L-4T45E 69 & 75 C10s,350c.i.-TH350 86 S10,2.8L-700R4 73 Volvo 142,2.0L-MT4 72 & 73 VW SuperBeetles,1.6l-MT4 64 VW,1.2l-MT4 67 Dodge Monaco 500 2dr ht.,383c.i.-A727 56 Chevy 210 4dr,265c.i.-PGlide |
#73
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After turning off the engine when the outside temp is 105 degrees the fan runs no more than 3 times for less than a minute each time and I have never run the battery down.
It was my fault the controller fried. I was cleaning up the wiring to look better and I attached the positive wire to the wrong terminal. When I turned the cutoff switch back on I soon smelled plastic burning. As it goes with DIY, I make a mistake I can be sure it will cause a bigger problem. Since the pusher fan is temp activated, it doesn't matter where the probe is located in the radiator once the the adjustable controller is in place. All that is necessary is set the controller to activate the puller fan just before the pusher fan starts running.
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X5 4.6 2002 Black Sap, Black interior. 2013 X5M Melbourne Red, Bamboo interior Dallas |
#74
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01 BMW X5 E53,3.0i-5L40E, 7/13/01 topas-blau,Leder-grau,"resto-project car" Here: 14 Lexus ES350,3.5L-U660E 09 HHR Panel,2.2L-4T45E 04 Chevy 2500HD,6.0L-4L80E 98 GMC Sierra 1500,5.7L-4L60E Gone: 66 Chevelle Malibu 2dr ht.,327>441c.i.-TH350>PGlide/transbrake 08 Cobalt Coupe,2.2L-4T45E 69 & 75 C10s,350c.i.-TH350 86 S10,2.8L-700R4 73 Volvo 142,2.0L-MT4 72 & 73 VW SuperBeetles,1.6l-MT4 64 VW,1.2l-MT4 67 Dodge Monaco 500 2dr ht.,383c.i.-A727 56 Chevy 210 4dr,265c.i.-PGlide |
#75
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fuse tap nix;used the (plugged) flashlight circuit in glovebox
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There was a black plastic rectangle where the flashlight would've been, so I used a screwdriver and popped it out. Voila', there was the two=prong receptacle, with a brown ground and a black/red? positive (lighting was bad). After testing with my meter, to verify it was switched, I made that circuit my trigger-power source. I didn't have the right fittings for it, so I used Posi-Taps to tap it, then used Posi-Locks to graft it into the wires that my cigarette plug had previously fed (I cut the plug-in with plenty of wire left, for future use). Now, the key controls the power to trigger the fan in two modes: 1) automatically via the T-switch on the radiator, or 2) manually, via the hidden switch under the dash. However, once the key is turned off, the fan quits (I had wanted it to run another 16 minutes, until sleep mode started). I guess the flashlight circuit sleeps instantly. Good enough for one day's troubleshooting...I'll look for a sleepy circuit at another time. Meanwhile, while the engine was running to retest the automatic fan, I sealed the Thermo-switch in a temporary plastic container, and ran an emergency charging cable to the underhood jumper posts, in case my battery goes dead and the manual doorkey won't work. I can use a battery charger or even jumper cables to give the battery enough power so I could use the key fob to get inside.
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01 BMW X5 E53,3.0i-5L40E, 7/13/01 topas-blau,Leder-grau,"resto-project car" Here: 14 Lexus ES350,3.5L-U660E 09 HHR Panel,2.2L-4T45E 04 Chevy 2500HD,6.0L-4L80E 98 GMC Sierra 1500,5.7L-4L60E Gone: 66 Chevelle Malibu 2dr ht.,327>441c.i.-TH350>PGlide/transbrake 08 Cobalt Coupe,2.2L-4T45E 69 & 75 C10s,350c.i.-TH350 86 S10,2.8L-700R4 73 Volvo 142,2.0L-MT4 72 & 73 VW SuperBeetles,1.6l-MT4 64 VW,1.2l-MT4 67 Dodge Monaco 500 2dr ht.,383c.i.-A727 56 Chevy 210 4dr,265c.i.-PGlide |
#76
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hats off to the OP for a simple plan...which I overlooked
OK, it's done, but I'm still considering adding a second, timed relay to be able to give my fan 10 more minutes of cooldown with the key off (just to trigger the main power relay for 10 minutes). I've found the parts needed (a mini-relay (wi-fi configurable) and a diode to prevent feedback. But that'll come later.
After re-reading this thread, I finally made the mental connection that bcredliner used an all-in-one adjustable thermostatic controller with a 40 amp relay built-in, and not one like mine with separate T-switch and relays to wire together. Makes for a simpler, cleaner installation...especially since I had to add more wiring later, to retrofit an adjustable fan controller. I thought I was saving money, haha. On his installation, he only used the underhood positive "jumper post" to supply both the low amperage trigger voltage and the higher amperage output voltage to the self-contained controller. No switched power, no manual override control, no compressor actuated switch. Very clean and simple. Kudos! On the other hand, I overcomplicate everything, thereby learning what works and what doesn't on my new-to-me X5. next time, though....
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01 BMW X5 E53,3.0i-5L40E, 7/13/01 topas-blau,Leder-grau,"resto-project car" Here: 14 Lexus ES350,3.5L-U660E 09 HHR Panel,2.2L-4T45E 04 Chevy 2500HD,6.0L-4L80E 98 GMC Sierra 1500,5.7L-4L60E Gone: 66 Chevelle Malibu 2dr ht.,327>441c.i.-TH350>PGlide/transbrake 08 Cobalt Coupe,2.2L-4T45E 69 & 75 C10s,350c.i.-TH350 86 S10,2.8L-700R4 73 Volvo 142,2.0L-MT4 72 & 73 VW SuperBeetles,1.6l-MT4 64 VW,1.2l-MT4 67 Dodge Monaco 500 2dr ht.,383c.i.-A727 56 Chevy 210 4dr,265c.i.-PGlide Last edited by workingonit; 07-19-2021 at 06:37 PM. |
#77
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It works, you had fun, that's all that counts.
__________________
X5 4.6 2002 Black Sap, Black interior. 2013 X5M Melbourne Red, Bamboo interior Dallas |
#78
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fan tested in 100F degree ambient temp; works fine
Took the wife on her first ride in the X5 (which she didn't want me to get...but she wasn't unpleased with the fancy electric seat), to vote in a run-off election today. 20 miles on low speed roads (45 and under, with multiple stops interspersed) in 100F+ ambient temperature, so it should be an adequate test of the fan's ability to keep the X5 cool.
Previous testing was in 90 degrees, w/o the A/C running, just testing the new main fan; with the Aux. fan running at the same time, the main fan didn't cut in until 185F, and the running temperature peaked at 194F and settled down to 192.8F, when we reached the polling place. After voting, we returned home via the same route, but while we were inside the site for under thirty minutes, the temperature rose to 195.8F (I haven't yet enabled the fan to run with the ignition off, will do so later), where it remained until I parked it at home. So, I guess the fan(s) are doing their jobs OK. Next trip, I'll run it for a 50 mile, mixed slow/high speed roads (40-80mph), when we visit her parents next month. That should be another good cooling system/fan test. Another thing: I haven't quite got the jist of adjusting the automatic climate controls yet. I set both sides to 70F, and adjusted fan speed to midpoint, and the temp probe I have inserted into the middle vent never registered less than 44F (all my GM vehicles will read between 42F ('98 GMC) and 36F ('09 HHR). Would 44F be considered normal for a X5? I had a '73 Volvo that we could never get below 45F (but the heater & heated seats would burn me out in winter!).
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01 BMW X5 E53,3.0i-5L40E, 7/13/01 topas-blau,Leder-grau,"resto-project car" Here: 14 Lexus ES350,3.5L-U660E 09 HHR Panel,2.2L-4T45E 04 Chevy 2500HD,6.0L-4L80E 98 GMC Sierra 1500,5.7L-4L60E Gone: 66 Chevelle Malibu 2dr ht.,327>441c.i.-TH350>PGlide/transbrake 08 Cobalt Coupe,2.2L-4T45E 69 & 75 C10s,350c.i.-TH350 86 S10,2.8L-700R4 73 Volvo 142,2.0L-MT4 72 & 73 VW SuperBeetles,1.6l-MT4 64 VW,1.2l-MT4 67 Dodge Monaco 500 2dr ht.,383c.i.-A727 56 Chevy 210 4dr,265c.i.-PGlide |
#79
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Hey chaps! Its been a while. Here are the pics from my electric fan conversion. This same fan now comes in an 18" size. I installed the 16" and it keeps the 3.0 nice and cool. I have tested it in 115 degree heat. I would spring for the larger fan just because even better cooling and surface coverage. Controller allows set points and fan speed control. Also allows control of two fans. I am adding a condenser pusher fan soon dedicated for the A/C. Please enjoy the custom carbon fiber shroud... with in-mold for expansion tank.
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2005 X5 3.0, 6MT, Alpine White on Truffle Brown, Sport, Preim, and Cold Weather, Alpina Stainless Headers, AFe Intake, UUC SSK, OEM 87's, 3.64 Differential Swap,Performance Modified Euro 2 Tune, UUC LTW Flywheel and HD clutch, Bilstein B12 Suspension kit Future mods ZHP/Schrick Cam Shaft upgrade, Operation code name:Doppelschrauben-Kompressor Wife's Ride: 2011 e70 X5 351 M///Sport. Also in the fold: 2004 X3 3.0, 6MT, Black Sapphire on Terracotta, port, Premium, Cold Weather. Last edited by Green Dragon; 08-05-2021 at 04:59 PM. |
#80
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most concise, best overall video about electric fan choices
Ever since I started considering the electric fan conversion (now completed), the YouTube algorithm has been sending me more and more video suggestions abut electric fans.
Today, it sent me this one: https://youtu.be/f2M3hdi9BL0 which is probably the best I've seen about fan basics. Here's another video, which sold me on choosing a Flex-A-Lite 238 puller fan, FYI: https://youtu.be/apmv9p4jajM
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01 BMW X5 E53,3.0i-5L40E, 7/13/01 topas-blau,Leder-grau,"resto-project car" Here: 14 Lexus ES350,3.5L-U660E 09 HHR Panel,2.2L-4T45E 04 Chevy 2500HD,6.0L-4L80E 98 GMC Sierra 1500,5.7L-4L60E Gone: 66 Chevelle Malibu 2dr ht.,327>441c.i.-TH350>PGlide/transbrake 08 Cobalt Coupe,2.2L-4T45E 69 & 75 C10s,350c.i.-TH350 86 S10,2.8L-700R4 73 Volvo 142,2.0L-MT4 72 & 73 VW SuperBeetles,1.6l-MT4 64 VW,1.2l-MT4 67 Dodge Monaco 500 2dr ht.,383c.i.-A727 56 Chevy 210 4dr,265c.i.-PGlide |
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