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Diode Help Needed Sign up here! Search this forum this category all forums for All words Any words Whole Phrase (search options) Auto Repair Home>> Automotive Repair>> Automotive Wiring and Electrical 350S10PETE New User Sep 15, 2009, 9:30 AM Post #1 of 5 (3010 views) Diode Help Needed Sign In Hello, I have a S10 with a homemade 350 so manuals don't work for me. I am having trouble with aftermarket fan controllers, they don't last, so I am going to attempt to control the fans that cool my engine with homemade circuitry. I have attached a document that hopefully will provide all of the information necessary for you to advise me as to the kind/size of the diodes that I will need. If you feel that I am out in "left field" with my idea your advice will be appreciated. Thank You, Pete Attachments: Two Fan Operation Requirements.doc (29.5 KB) Hammer Time Ultimate Carjunky / Moderator Sep 15, 2009, 10:20 AM Post #2 of 5 (3003 views) Re: Diode Help Needed Sign In Diodes are simply one way valves for electricity. Rather than go to manual switches, why don't you just ad a rely to the controller your using. If powering the fan is overloading the controller, then use the controller to trigger a relay that is carrying currunt from another source. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional. 350S10PETE New User Sep 15, 2009, 2:59 PM Post #3 of 5 (2993 views) Re: Diode Help Needed Sign In I know what a diode is and what it does, that is not what my question was. I also stated that fan controllers did not last and were expensive. Did you look at the attachment that went with this post? Pete Hammer Time Ultimate Carjunky / Moderator Sep 15, 2009, 3:01 PM Post #4 of 5 (2993 views) Re: Diode Help Needed Sign In Yes I did but I would never wire a fan to a manual switch. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional. Sidom Veteran / Moderator Sep 15, 2009, 8:28 PM Post #5 of 5 (2988 views) Re: Diode Help Needed Sign In HT has the best idea. Those fans draw a lot of amps no matter how you wire it up, if there isn't a relay for the fans then you will have problems down the road. A schematic of the way you have it wired right now would be helpful............   Automotive Repair     Auto Body Repair and Refinishing     Heating or AC Issues     Electrical and Wiring     Brake Systems     Car Stereo Repair Advice     General Discussions     Car Making Funny Noises     Engine Fault Codes     Engine Troubles     Exhaust Systems     Steering and Suspension     Transmission Troubles     Tricks of the Trade Automotive World     General Discussions     Antique Car Talk     Car Shows and Events     The Bargin Bin     Motor Vehicle Inspection     Car Care Tips     Traffic Tickets     Gasoline, Motor Oils, Concept Cars and Engines     Auto Insurance, Financing, Leases, Warranties Truck Repair     General Discussions     Truck Engine Repair     Truck Suspension Repair Motorcycle Repair     General Discussions     Motorcycle Engine Repair CarJunky     Open Posting     Board FAQ's     New Board Suggestions

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