Battery dying

[pegger]

Ok this is a weird issue. A few weeks ago i replaced the altenator,battery, and wiring. Worked fine

Now for the last week or so everymorning i come out the truck is nearly dead or is dead. I found that if i pull the E.E.C. Relay out the voltage nearly doubles at the battery. What does this relay control? Or is this a symptom of another problem?

THanks

 

[aldive]

What is the voltage at the batter' disconnected and not?

 

[V8BoatBuilder]

What does EEC stand for....?

Sounds like a voltage drain problem, might want to replace the faulty relay.

 

[Maniak]

If I remember correctly, the EEC and the Fuel pump share a fuse. I even remember reading few threads that said to pull the fuel pump relay to clear the computer (the fuse under the hood).

~Mark

 

[ALYZ1FLR]

Just a thought.

Check for a short to body ground on EEC. power wire. Also check engine to body grounding straps, it will give those symptoms.

 

[Crankcase]

Originally posted by V8BoatBuilder
What does EEC stand for....?

Sounds like a voltage drain problem, might want to replace the faulty relay.

I am pretty sure it stands for Electronic Engine Control....

AKA...the Computer

 

[pegger]

Ok still happening, got a meter on it today and the eec is taking 3 volts continuesly even with the truck off. That seems a little excessive, any one had a similar issue? whats a new eec worth? or maybe someone knows how to fix this or why its drawing the power. i dont however have a hanes/chilton manual or a code reader available

Thanks for any help you can give.

 

[aldive]

What is the battery voltage?

 

[ld50]

You can trace a battery drain by using a tester light between the positive terminal wire and your positive battery terminal, it`s in the manual. Basically with the ignition off, you should only have a noticable drain from your radio memory and/or alarm system, so the light will be brightly lit, with that/those fuse(s) pulled out the light should only be barely lit, due to parasitic drain of the system. if your fuse for the radio/alarm doen`t dim the light, you just keep pulling fuses untill it does, then inspect that circuit for a problem.

?

 

[A Wise Guy]

Expanding off of Id50. There is a possibility of the drain being more that one circuit. After doing the testlight thing reinstall then uninstall each fuse individually to make sure it is only one circuit that is the culprit.

 

[ALYZ1FLR]

ld50 Nailed it!

Good advise.

 

[Opera House]

hmmmmmmm....3 volts

I think you wanted to say 3 amps. I would think that is not too unusual for an EEC. There is some history of fuel pumps sticking on with this age Explorer though the current ought to be closer to 5A. Fuel pump and EEC have seperate fuses and both relays are connected to 12V which is powered all the time.

The EEC relay is turned on by the keyswitch. If you plug in this relay and it clicks (key off), then it is getting power from the keyswitch and that is where your problem is. If the current goes away when you remove this relay (key off) and you don't hear it click, then the relay probably has welded contacts. For the cost, I would get a new relay. Too many have switched them with another relay in the box and got a whole new set of problems.

 

[pegger]

Well if i remove the relay with no key in the ignition i hear a click and what sounds like a small whine for a few seconds. then all is quiet. Could it just be the tumbler is wearing out? Sometimes i have to adjust it to make it stop beeping after the key is out

thanks for all the replies

Oh ya where would the relays be located?

 

[Opera House]

Just replaced the battery in my better hal's car

Battery was dead and I just put a new one in because it was a couple years old. Kept the old battery because it seemed to take a charge and I could use it for my Gravely. A week later, she came into the house, said she puled out the key and the windshield wipers were still going. Looks like that was the real reason her battery was dead.

Yea, the tumblers do go bad. Either replace the kwyswitch or wire up a switch where the engine control fuse goes. I found many wire crimp terminals fit into the fuse socket. the wires easily fit in the fender crack to get it into the cab. This temporary switch will prevent you being stranded.