96 Grand Cherokee keeps blowing the igntion fuse?????

[bmaty]

I have a 96 Grand cherokee that keeps blowing the igntion Fuse under the
hood its a 40 amp.

Has only happened twice both.months apart.

At first I thought the wife overloaded it. Started it with everything on .
...heaters wipers lights etc.

This time the only thing on was the radio.

Only other thing is maybe........we have a after factory car starter but
that seems to work good most of the time.

Anybody have any ideas???

[HarryS]

If you are blowing the 40amp fuse there is either a lose connection between
the fuse and the starter or there is a short in the same circuit possibly a
bad winding in the starter. Check all connections and have the starter
megged.

--
HarryS My 2¢
"bmaty" <bm...@adelphia.net> wrote in message
news:i5OdnVYk9_u...@adelphia.com...

[fred_emme...@comcast.net]

The starter is not fused.

In <g82dncBu6P9...@comcast.com>, on 03/13/05

at 01:09 PM, "HarryS" <har...@comcast.net> said:

>If you are blowing the 40amp fuse there is either a lose connection
>between the fuse and the starter or there is a short in the same circuit
>possibly a bad winding in the starter. Check all connections and have
>the starter megged.

--
-----------------------------------------------------------
Fred Emmerich
Fred_E...@comcast.net
-----------------------------------------------------------

[fred_emme...@comcast.net]

The starter is not fused. You are probably shorting somewhere, possibly
the solenoid, or along the path to it, through the ignition switch. Seems
like if a single device was shorting, its fuse would blow too, so it is
probably something unfused.

Can you tell when it blows? Does it go when engaging the starter or when
just turning the key on?

In <i5OdnVYk9_u...@adelphia.com>, on 03/13/05

at 12:15 PM, "bmaty" <bm...@adelphia.net> said:

>I have a 96 Grand cherokee that keeps blowing the igntion Fuse under the
>hood its a 40 amp.

>Has only happened twice both.months apart.

>At first I thought the wife overloaded it. Started it with everything on

>. ....heaters wipers lights etc.

>This time the only thing on was the radio.

>Only other thing is maybe........we have a after factory car starter but
>that seems to work good most of the time.

>Anybody have any ideas???

[HarryS]

Not entirely correct, however if the starter solenoid or the starter itself
has a lose connection or a bad winding it will cause the starter relay
circuit to over heat and sometimes short out hence the blown fuse. Also,
there is a fusible link on the starter up near the battery hence it is
fused.

--
HarryS My 2¢
<fred_emme...@comcast.net> wrote in message
news:4234c490$1$serq_rzzrevpu$mr2...@news.comcast.giganews.com...

[bmaty]

Not sure wife was driving it both times.........probably when the starter
goes to engage. Very cold and rainy here today tommorow I'll get back under
it and look for more loose wires or shorted ones.

thanks Brian

<fred_emme...@comcast.net> wrote in message
news:4234c5a3$2$serq_rzzrevpu$mr2...@news.comcast.giganews.com...

[fred_emme...@comcast.net]

I should have said not fused on a 40!

You sure about the fusible link? My positive cable goes to the solenoid,
then to the starter. It is just a regular cable.

In <odSdneP2Fs5...@comcast.com>, on 03/13/05

at 06:55 PM, "HarryS" <har...@comcast.net> said:

>Not entirely correct, however if the starter solenoid or the starter
>itself has a lose connection or a bad winding it will cause the starter
>relay circuit to over heat and sometimes short out hence the blown fuse.
>Also, there is a fusible link on the starter up near the battery hence
>it is fused.

--

[Drifter]

On Sun, 13 Mar 2005 22:12:17 -0600, fred_emme...@comcast.net
wrote:

>I should have said not fused on a 40!
>
>You sure about the fusible link? My positive cable goes to the solenoid,
>then to the starter. It is just a regular cable.

I've seen both straight cable and fuselinks on various XJ's, it's like
Chrysler couldn't make up their mind(s). The really annoying part is
that some of the fuselinks looked like plain cable until you examined
it more closely with a flashlight. I would start checking things for
cracked insulation/metal contact because it really sounds like an
ignition short somewhere close to the starter. As someone else
mentioned a badly wound starter can do this too.

Drifter
"I've been here, I've been there..."

[HarryS]

Not sure of each particular year but and you may not have a fusible link.
The fusible link looks like bulge in the cable, most of the later models it
is hid under the wire mold.

--
HarryS My 2¢
<fred_emme...@comcast.net> wrote in message

news:42350fbb$1$serq_rzzrevpu$mr2...@news.comcast.giganews.com...

[Lon]

If this is the 40 amp fuse formally known as the ignition fuse, the
starter motor relay is not in the direct path. The starter relay
fuse should be a 30 amp one, with the disclaimer I have a 95 service
manual. It could be the fuel pump just starting to drag and
overcurrent a bit.

If you can pick up a factory service manual from techauthority, do so,
the aftermarket ones "sorta lack accuracy" in some of their wiring
diagrams.

Might be worth checking the steady state draw on the circuit if you
can find a big enough ammeter.

bmaty proclaimed:

[bmaty]

Ok guys so far I've looked over the entire system......no shorts or in line
fuse (bulge)...and while i was down there i found a busted swaylink that
needs attention asap....my 97 wrangler went thru them left and
right...........so for now Im just going to replace the battery terminal's
and keep looking................

p.s I've been working on a 92 chevy cavalier thats in great
shape..........very easy to work on....but....oh boy do I love
chrysler's........After switching from a gm to a Chrysler product....its
like home sweet home..........I don't know why I even by other cars.....I
know chrylser so much that I'm so comfortable...with them.................i
gotta get back into a DODGE or another JEEP for myself.

thanks guys i'll check back in soon.

Brian

p.s.s Fords really suck

"Lon" <lon.s...@comcast.net> wrote in message
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