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Car Forum / Ford / Ford Cars / August 2004

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ATTN: Backyard Mechanic or Neil Nelson

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BARRY PENIGHETTI - 29 Aug 2004 03:20 GMT
Hi guys,

JL here.  How have you been?  Me, well not so well.  But that's besides the
point.

I am asking you guys because I respect and trust you.  (I cant say that
about too many people)  I also know you both work on vehicles other than
Fords.  I have browsed the Neon newsgroup and well all I can say is
unbelievable.

To the point:

I have a friend who has a 95 Dodge Neon (Ok, now stop laughing, its all they
can afford)  Anyway it has a short in the electrical system.  Since my back
is so bad I cant even get up to take a look, but it keeps blowing the fuse
for the fuel injection.  They said its a 20 amp fuse.  I do not know what
number fuse it is.  The fuse is located in the fuse box under the hood.

At first the fuse would blow occasionally.  Now it blows as soon as you put
the fuse in.  That's a good thing, makes it easier to find the problem.

I have heard rumors that the battery is known for corroding the power box,
(fuse/relay box) next to the battery and the wires under the battery tray
causing a similar concern.  Have either one of you run into this problem
before?

I would like to at least get someone here going in the right direction.  One
shop removed the engine to find the short. Like they really knew what they
were doing, Down right thieves I call them.

Another place started hot wiring things to bypass the short but have not
solved the problem.

I told her to get it out of where she has the car after they repair the
wiring they butchered.  Then I would try and find out if this was a common
problem or not.

If you guys have heard or seen this problem let me know.

Thanks

JL
Backyard Mechanic - 29 Aug 2004 04:37 GMT
Barry, sorry to hear your back is so bad...

I wouldnt laugh at a Neon, Like you said..

But removing an engine to find a fuel pump wiring short!!!!  Makes one weep.

Actually I dont work on anything but my own Fords, but this isnt really a
"make" problem".

I assume from your post the fuse blows as installed.. not dependent on  ign
sw on?

If a 20 amp fuse is blowing, that USUALLY isnt a corrosion problem, as that
is a product of oxidation, and oxides are electrical insulators... save for
very high voltage... or very low value fuses

It's probably a pinch.

Here's what I would do... verify the pinch or short by probing the fuse
connector to see which side is hot and which side isnt... then after
disconnecting the battery.. check with an ohmmeter from the load side of fuse
to the negative battery cable terminal. (to eliminate possible bad connection
to body)  

The meter should read less than 1 ohm.. (according to ohm's law)  that would
verify a short before the relay

So the thing would be to find the relay.. and check all the wiring in between
the fuse and relay... if it's in the same box.. that's a pretty short trip.

But if it blows as the key is turned, that's different... that would put the
problem AFTER the relay.

I've never tried it, but a tone-tracer might be able to trace the wire to the
point of the short... just about any phone guy or computer network tech would
have access to one.
john-bananas - 29 Aug 2004 13:13 GMT
Hey Backyard, Ya know something? I was wrong
about you, I've been reading this group for a week
now and it's pretty dam cool the way you try and
help if you can...
Tip My Hat...
Bananas

> Barry, sorry to hear your back is so bad...
>
[quoted text clipped - 32 lines]
> point of the short... just about any phone guy or computer network tech would
> have access to one.
Backyard Mechanic - 29 Aug 2004 14:43 GMT
> Hey Backyard, Ya know something? I was wrong
> about you, I've been reading this group for a week
> now and it's pretty dam cool the way you try and
> help if you can...
> Tip My Hat...
> Bananas

thanks... appreciate the reconsideration!

you're okay!
tom - 29 Aug 2004 17:52 GMT
me thinks you hit  the nail on the head with your fuel pump statement.after
9 years, there is a very good possibility the  fuel pump took a dump
news:Xns9553EEBABF4E4BkMch6d@207.115.63.158...
> Barry, sorry to hear your back is so bad...
>
[quoted text clipped - 32 lines]
> point of the short... just about any phone guy or computer network tech would
> have access to one.
 
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