eec ground wire - Ford Bronco Forum
 
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post #1 of 13 (permalink) Old 10-03-2006, 02:58 PM Thread Starter
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Exclamation eec ground wire

89 Bronco 351W EFI/C6

Ok, when trying to start the bronco, the starter only turns the motor over for a second or two and then comes to a stop. Then I noticed some smoke coming from the eec relay ground wire at the battery. Has anyone ever run into this? Why is it doing this? Also, I checked the battery, it has 12.76 volts.
Help Please?
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post #2 of 13 (permalink) Old 10-03-2006, 05:43 PM
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You have a short somewhere. Its the only reason it would do that. Check everything at the solinoid first then work from there.

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post #3 of 13 (permalink) Old 10-03-2006, 05:54 PM Thread Starter
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Ok I'll start there. Thanks
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post #4 of 13 (permalink) Old 10-03-2006, 07:42 PM
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The EEC PWR relay ground wire isn't anywhere near the battery. What are you looking at?

Smoke from a ground terminal doesn't indicate a short - it indicates high resistance right there. Remove, clean, reattach, & tighten it. If it strips, drill a new hole & tighten it down again.

BTW
There's no solenoid on an '89. They weren't used until ~'91, and then only on V8 starters.



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post #5 of 13 (permalink) Old 10-03-2006, 09:09 PM Thread Starter
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Then why is there a solenoid on the fender well right behind the battery? I believe its the starter solenoid. the + cable goes straight to it and a cable from the other post goes straight to the starter.
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post #6 of 13 (permalink) Old 10-03-2006, 09:12 PM Thread Starter
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The wire I am looking at is coming out from behind the radiator with a whole group of taped up wires. There are actually two there, and plug together at the ground terminal on the - battery cable.
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post #7 of 13 (permalink) Old 10-04-2006, 03:35 AM
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Quote:
Originally Posted by beanedbronco
Then why is there a solenoid on the fender well right behind the battery?
There isn't; never has been; never will be. There's a relay there...
Quote:
Originally Posted by beanedbronco
I believe its the starter solenoid.
It's not. A starter solenoid is ON the starter. Take a look:


The ground wires you're describing are for MANY things, but not the EEC PWR relay. That ground is near the air filter box. The ones you're looking at are known to get loose & lose contact, so definitely clean & tighten them.



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post #8 of 13 (permalink) Old 10-04-2006, 04:40 AM
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Beaned...you mean this?


Those wires eventually connect back to the EEC case (which is grounded) and the pins on the connector that need to be grounded...but then again every ground connects to each other on a Bronco.

If this is not connected, it will have nothing to do with your starter spinning the motor over.
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post #9 of 13 (permalink) Old 10-04-2006, 11:03 AM Thread Starter
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But when they are not connected, there is no power to the inside of the truck. Nothing comes on. It must have something to do with the ignition switch cause i can't even crank the motor. Not even the dome light comes on. By the way those are the wires.
Does anyone know where I can find a good wiring diagram for the engine and all of the ignition wiring?
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post #10 of 13 (permalink) Old 10-04-2006, 11:14 AM
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Haynes. Or the ford CD.

Have you cleaned and re-grounded that connection?

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post #11 of 13 (permalink) Old 10-04-2006, 02:38 PM Thread Starter
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Yes I have cleaned them and re-connected. I'll give the manual a try.
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post #12 of 13 (permalink) Old 10-04-2006, 02:57 PM
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Also, check your ground cable from the battery to the block, and to the body.

There shouldn't be that much amperage going through those little electronics grounds, that's what the big ground cable really close to the starter is for. If the big cable is broken or highly resistive, the current may be trying an alternate path.

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post #13 of 13 (permalink) Old 10-04-2006, 03:51 PM
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Quote:
Originally Posted by sewiv View Post
Also, check your ground cable from the battery to the block, and to the body.

There shouldn't be that much amperage going through those little electronics grounds, that's what the big ground cable really close to the starter is for. If the big cable is broken or highly resistive, the current may be trying an alternate path.
Maybe you have your wires (one wire) wrong on the fender relay (solonoid) .


.
.
.http://www.eliminatorracecars.com/ne...20Solenoid.JPG

http://www.smpcorp.com/


http://www.smpcorp.com/web_app/catal...liccatalog.asp
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