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1989 ford E-150 5.8 battery dies
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Timthecarguy719
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Apr 6, 2011, 1:17 PM
Post #51 of 59
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Re: 1989 ford E-150 5.8 battery dies
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No, not for 20min i didn't.
Maybe like 5min and the reading didn't really go much higher then 141ma.
Should i leave it hooked up for the 20min you think?
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zmame
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/ Moderator
Apr 6, 2011, 1:23 PM
Post #52 of 59
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Re: 1989 ford E-150 5.8 battery dies
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yes
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Timthecarguy719
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Apr 6, 2011, 1:25 PM
Post #53 of 59
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Re: 1989 ford E-150 5.8 battery dies
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ok.., I'll do that tomorrow and let you know.
PS: Sorry for calling you "the other guy" to Hammer-time, i just couldn't think of your user name off the top of my head.
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re-tired
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Apr 6, 2011, 7:56 PM
Post #54 of 59
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Re: 1989 ford E-150 5.8 battery dies
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Ok here i go . at the risk of a hammer flying at me. Try the old school method for the hell of it . Take ground cable off . Hook the ground clip of a test light to cable , touch probe of test light to post. maintain connections and touch the batt cable briefly to the post. This will put any keep alive circuits to sleep. If light is lit you have an excessive draw . Pull and replace one fuse at a time until the light goes out. If none of the fuses affect it , unhook the power leads to the alt. This is a old fashioned way but it does work . Here comes the Hammer.
LIFE'S SHORT GO FISH
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Hammer Time
Ultimate Carjunky
/ Moderator
Apr 7, 2011, 6:06 AM
Post #55 of 59
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Re: 1989 ford E-150 5.8 battery dies
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If you know it's coming, why do you post it?..............LOL
This is something we totally disagree on.
In the old days before all the computers and timers, a test light was the accepted method of checking for a draw but now because we have so many modules that operate on start up and shut down that it's important to have a measurement of the amount of draw and not just the "on and off" of a light bulb. All cars have some draw and the bulb cannot distinguish between acceptable amounts and excessive amounts. Since you already have the meter reading, I don't know why it was necessary to throw this monkey wrench in the works. RT just likes to poke me once and a while..........LOL
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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re-tired
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Apr 7, 2011, 9:08 AM
Post #56 of 59
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Re: 1989 ford E-150 5.8 battery dies
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That didnt hurt too bad. Since i already have my foot in the door it would not hurt for him to try it ,would it ? Just for him to actually see the current flow . This guy seems to be smarter than our average poster(he actually had a meter !).One thing i waoukld like to run by you HT all kidding aside. . Regardless which method used i have found that when the batt cable is removed and the METER is hooked up there is not sufficant ground to pull some circuits down , resulting in a false positive. So after installing the leads ,touch the cable back to its post briefly , then removing without breaking the meter connections .This allows everything to go to "sleep". Respectivly yours,
RT
LIFE'S SHORT GO FISH
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Hammer Time
Ultimate Carjunky
/ Moderator
Apr 7, 2011, 9:15 AM
Post #57 of 59
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Re: 1989 ford E-150 5.8 battery dies
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You're right RT
I don't know if you have ever read my instructions that i usually post for measuring draw but I account for that.
"You will need a digital ammeter and a jumper wire with clips on the ends to do this.
First rig any door switches so you can have a door open without triggering the interior lights and unplug the hood light. Remove one battery cable and attach the meter in series between the battery cable and battery post. Take the jumper wire and also attach it the same way. Leave the jumper wire on for at least 10 minutes to expire all the automatic timers. Now remove the jumper wire and read the meter. Anything over 50ma is too much draw. The way you locate this is to start removing fuses one at a time until the meter drops to normal level. This will be the circuit with something staying on. Determine what components are part of that circuit and check them individually until the problem is isolated."
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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re-tired
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Apr 7, 2011, 9:49 AM
Post #58 of 59
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Re: 1989 ford E-150 5.8 battery dies
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Of course you knew .You had it in your instructions , I knew that. Im going back to my cave now. RT
LIFE'S SHORT GO FISH
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Timthecarguy719
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Apr 7, 2011, 4:32 PM
Post #59 of 59
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Re: 1989 ford E-150 5.8 battery dies
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Ok, I will do that.
I do alot of stuff to cars but electrical has always been my week point.
I'll rebuild an engine all day long, but i need extra info to play it safe when it comes to electrical.
Thank you guys for your help so far, This forum is awesome!
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