cooling fans

1998 BUICK PARK AVENUE
232,000 MILES • 3.8L • V6 • FWD • AUTOMATIC
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BOATINMAN57
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have seen as high as 215* on digital info ctr. cooling fans don't come on , fans run freely with 12v jumped @ u/h fuse & relay ctr, relays check good n I don't just mean they click and all related fuses that I can find (this car has 3 fuse boxes) r good. I've been advised that fans should come on when the a/c or def is turned on , they do not...I just drove this car on a 300mi.trip on a 60*day n temp never went over 192*,now its 20*outside n temp shoots up over 210/212 when sitting still,, soon as you move it goes back down to 190/195
Jan 6, 2016 at 7:55 AM
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HMAC300
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210 is about normal on these cars. all relays for this are under hood there are 3 check parallel relay as well check ect sensor for ohms.
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Jan 6, 2016 at 12:28 PM
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BOATINMAN57
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re:cooling fans,98 park ave. if a/c refrig pressure is low would that cause a/c clutch to not engage which would result in no call for cooling fans when def or a/c is on ? could be i'm jumping the gun on normal operation of fans for cooling when def or a/c isn't on ,...lol.. i tend to get nervous when i see temps up around the boiling point . many thanks










Jan 6, 2016 at 3:07 PM
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HMAC300
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don't worry about temps at boiling point.system is pressurized so it takes to about 260 or so bfore it boils. if a/c is low is probably the reason the fan doesn''t come on
Jan 6, 2016 at 3:15 PM