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89 audi 100, fan problems
Ok, My 89 audi is having some probelms. I think it was yesterday, i
pulled into my driveway after work and noticed the fan, the one right behind the radiator, wasn't stopping. I figured that it would stop within 5-10 minutes. I came back out 15 minutes later and the fan was still running. I started my vehicle to make sure the battery wouldn't die, and then turned off my car again. Once again i waited for another 15 minutes, with the car off, but the fan kept on runnning. So now whenever i want to drive my car i have to pull the battery so the fan will stop. Please any ideas will help. Thank you, Jimmie |
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#2
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#3
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No what does this switch look like? Sorry im not very mechanical. Does
it look like a light switch or a toggle switch? Jimmie |
#4
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The message .com>
from contains these words: > No what does this switch look like? Sorry im not very mechanical. Does > it look like a light switch or a toggle switch? It won't look like a switch at all. It'll be a fitting on the side of the radiator. In general it'll look something like this... http://www.bus-boys.com/121b-wasser.gif but of course, they're all different! You should be able to unplug it. If that doesn't stop then fan then start chasing the relay. -- Skipweasel. Ivor Cutler - "Never knowingly understood." |
#5
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The fan thermo switch is located on the back of the radiator just below the
lower radiator hose. three wire connection for fan speeds 2 and 3. Still I would be more inclined to check the relays first. Relays for fan speeds 1 and 2 are located int he main relay / fuse box buy the drivers side hood hinge. Fan speed 3 relay is located in the AUX panel under the dash by the driver's left knee. Large and very difficult to pull due to its large conductors to carry the amperage needed for the fast speed. I would suspect either fan speed 1 or 2 relays to be the more likely culprit. TonyJ current: 98.5 A4 1.8TQM APR precious: four T44s 84 - 91 N/A 5spd Guy King wrote: > The message .com> > from contains these words: > > >>No what does this switch look like? Sorry im not very mechanical. Does >>it look like a light switch or a toggle switch? > > > It won't look like a switch at all. It'll be a fitting on the side of > the radiator. In general it'll look something like this... > > http://www.bus-boys.com/121b-wasser.gif > > but of course, they're all different! You should be able to unplug it. > If that doesn't stop then fan then start chasing the relay. > |
#6
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So do you recommend unplugging the switch while the fan is running, or
when i have the battery unplugged? Thank you, Jimmie |
#7
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The message >
from Tony > contains these words: > Still I would be more inclined to check the relays first. If you pull the switch plug first it'll tell you whether the relays are stuck or not. If you pull the relays first it won't tell you whether they or the switch were stuck 'cos the fan'll go off anyway. -- Skipweasel. Ivor Cutler - "Never knowingly understood." |
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#9
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Because I feel that the relays are the problem I do not see a reason to unplug
the switch. The switch is used to activate the relays which then power the fan so unplugging the switch will not have any effect if my theory is right. I would look to the relays first and you can check them with the battery hooked up. If you still want to unplug the switch you should disconnect the battery first because it is located within inches of the fan and you do not want to be anywhere near that when it is running. TonyJ wrote: > So do you recommend unplugging the switch while the fan is running, or > when i have the battery unplugged? > > Thank you, > Jimmie > |
#10
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The message >
from Tony > contains these words: > I would look to the relays first and you can check them with the > battery hooked up. What will that tell you? If you pull the relay and the fan stops you're no wiser. It could still be the switch, as the fan won't run without the relay it'd have stopped anyway. If the OP were confident enough they could poke about with a meter but they don't come across as the sort that would do that. -- Skipweasel. Ivor Cutler - "Never knowingly understood." |
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