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98 Voyager Cooling Fans Sign up here! Search this forum this category all forums for All words Any words Whole Phrase (search options) Auto Repair Home>> Automotive Repair>> AC Auto Repair Help Forum lwarren01 New User Aug 24, 2006, 3:25 PM Post #1 of 4 (2252 views) 98 Voyager Cooling Fans Sign In What activates the radiator fans specifically related to the a/c. My head press goes over 400 psi and the fans never come on. Fuse is fine. I found the relay, but I am not sure how to troubleshoot. Is the high press. switch supposed to activate the fan relay, or should the fans come on any time tha a/c is switched on? Tom Greenleaf Ultimate Carjunky / Moderator Aug 24, 2006, 7:23 PM Post #2 of 4 (2249 views) Re: 98 Voyager Cooling Fans Sign In First off you should never see 400 for a high pressure!! Compressor should shut down before that as told to by the high pressure switch. Many vehicles will run the fan with any A/C request but it may rely on head pressure to kick on. Relay is likely here. You could try tapping it and it may kick on or just replace it. Also check that the fan isn't frozen up. Should spin (don't use your hand) with the van off freely. You could check to see if it gets power or jump power to it to test it out. Does this vehicle cool at all? Air flow isn't real good in those just by driving along so it needs the fan, T lwarren01 New User Aug 25, 2006, 4:36 AM Post #3 of 4 (2247 views) Re: 98 Voyager Cooling Fans Sign In Tom - I suspect the head press switch is bad, because the clutch burned up because of this problem. I replaced the clutch and thats when I noticed the fans not comming on and the head press getting to high. What press should this switch cut the clutch out? Is there a shrader valve in the port to where I can just unscrew the press switch and put a new one on? Thanks Lane Tom Greenleaf Ultimate Carjunky / Moderator Aug 25, 2006, 11:20 AM Post #4 of 4 (2242 views) Re: 98 Voyager Cooling Fans Sign In I'm not sure about the shrader for the high switch but if you just look at a new one you could tell that it has a pin to push it in. If that doesn't show you hit me at home email or try for Nacho at www.acSource.com as he does A/C year round in Mexico and would know off the top of his head, Good luck, T   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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