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Old 27 Oct 2009, 06:50 pm
Tegger
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Default Re: 92 Accord Temperature Gauge Problem

Face <face@yahoo.com> wrote in
news:face-152A78.18451127102009@newsfarm.iad.highwinds-media.com:

> In article <Xns9CB0C235F7A98tegger@208.90.168.18>,
> Tegger <invalid@invalid.inv> wrote:
>


>>
>> You're probably OK. It's probably more likely the sender has just
>> lost some of its resistance rather than actually shorted. The loss of
>> resistance can be detected with a multimeter (S/B 142 ohms at cold,
>> approx 35 at full op- temp).
>>
>> Some clarification: the "sender" unit isn't really a "sender", but a
>> variable grounder. Current goes through the gauge and then to ground
>> through the sender. The sender has variable resistance that decreases
>> with increased coolant temperature. Decreased resistance means more
>> current flowing to ground and a higher gauge needle reading.

>
> Thanks for the clarification. I checked the resistance and it reads
> as 0 so I'm guessing that means it's dead.




Zero ohms? Ugh. You may actually have a dead-short there. Watch that gauge
once the new sender is installed.



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Tegger

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