Re: cooling fan trouble
It is not a good idea to go replacing electrical components with the battery
plugged in, unless you are an expert and know for sure, that the component
in question does not have any power to it. "I then noticed that I could
here some clicking while I was replacing it." That could have been relay
contacts welding themselves together and making relay coils burn themselves
out.
The switch is a likely candidate. If it is responsible for the original
problem of the fan staying on, then the terminals should be shorted together
internally, which you can verify with a multimeter or test light. You
probably want to get a circuit diagram first. The Haynes Manuals usually
have fairly accurate ones, but they can be hard to read because they are in
black and white and because they try to cover several years in one diagram.
Earle
"vancehuff" <vancehuff@yahoo.com> wrote in message
news:1159550410.385292.13300@b28g2000cwb.googlegro ups.com...
> I recenlty noticed that my 90 accords cooling fan was running hours
> after I turned the engine off, and kept running until the battery was
> dead. I recharged the battery and started unpluging sensors while the
> fan was running to locate the problem. When that didnt work I
> unplugged the cooling fan relay located in the fuse box under the hood.
> That finally shut the fan off. I then noticed that I could here some
> clicking while I was replacing it. Nothing unusal, but it continued
> clicking after it was pluged in (and the fan continued to run). I
> unpluged the relay and called it a day. The next morning I pluged the
> relay back in and the clicking noise was gone, and the fan wasnt
> running. I thought the problem fixed itsefl until I drove it to work
> and the damn thing started overheating. Now the fan wont come on at
> all. I replaced the relay, and that didnt work (no clicking either).
> I dont think there is any power going to the relay, but I dont know how
> to check for that. I was told that it could be a bad cooling fan
> switch that screws into the radiator. I was going to replace that next
> but I want to get some professional feedback before I start replacing
> parts. Any advice would be much apreciated.
>
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