[s-cars] Current draw/dead battery "a short story"

[Jim Furdyn]

At any rate, the relay is what controls the Rad Fan to start turning when
the ignition is off. Why would I not want to "mess" with this relay if it's
the culprit turning the fan on and draining my battery? Granted, the TC temp
sender may be tell the relay to turn on, therefore in this example, it would
NOT be the relay. But since I pulled this relay and C/B, the car start great
and batt voltage is normal again. Like I said before, I'll be changing the
TC temp sender and the relay, for a $15 sender and a known good parts relay,
it's worth it to me.

Jim

-----Original Message-----
From: Mark Strangways [mailto:StrangConst at rogers.com] 
Sent: Thursday, December 27, 2007 8:10 PM
To: Tom Green; Jim Furdyn
Cc: 's-car-list'
Subject: Re: [s-cars] Current draw/dead battery "a short story"

Tom, mine didn't start the fan, just the pump.
Maybe in my MY (92) that is by design.

Mark S

----- Original Message ----- 
From: "Tom Green" <trgreen at comcast.net>
To: "Jim Furdyn" <audijim at comcast.net>
Cc: "'s-car-list'" <s-car-list at audifans.com>
Sent: Thursday, December 27, 2007 4:42 PM
Subject: Re: [s-cars] Current draw/dead battery "a short story"


> My point on the after run circuit is that the fan runs as well as the  
> little coolant
> pump you might not hear.  The fan is what depletes the battery in  
> short order
> when this circuit stays on, and can even catch on fire, so you don't  
> want to mess
> with a suspect relay.  Unfortunately, there are so many other places  
> for the current
> to leak.
> 
> When you celebrate success in this endeavor,  I recommend a bottle of  
> "Jarhead
> Red" from Firestone vineyards in Los Olivios, Ca, a product of Adam  
> Firestone,
> Capt, USMC, 84-91, proceeds to the Marine Corps foundation.
> 
> Tom
> 
> On Dec 27, 2007, at 4:15 PM, Jim Furdyn wrote:
> 
>> Thanks for info Tom and I appreciate your recommendations. I have  
>> checked
>> the voltage at the alternator and at the battery for comparison,  
>> they were
>> less than a half a volt difference and this was one of the first  
>> things I
>> checked. All connectors at the alternator and starter were secure  
>> and in
>> good condition. Since this relay is not the mechanical type that  
>> you can
>> actually hear open and closing, this was not easy to spot. As  
>> previously
>> stated in an earlier post, I unplugged the aux coolant pump and  
>> waited until
>> the next day. The battery still went to less than 10 volts. I then  
>> started
>> to dig deeper into that circuit and found the smelly coolant pump  
>> relay.
>> This does not mean that I still do not have a possible bad TC temp  
>> sensor
>> feeding the relay a false signal and the relay staying closed  
>> therefore
>> draining most of the battery voltage. I have the TC temp sensor  
>> coming and
>> will install that first. This aux coolant relay smells fried but  
>> looks good.
>> I don't have to be a rocket scientist to say that I no longer trust  
>> its
>> functionality so I will be replacing this as well. None of this is any
>> guarantee that this problem is cured. If this does hold a charge  
>> over my
>> upcoming long weekend, I'll call it good at that point.
>>
>> Jim
>> USMC (1989-1992)
>> Floyd, Semper Fi brother!
>>
> 
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