electrical problem with an 86 CJ7
08-12-2003, 09:35 PM
#1
Guest
Posts: n/a
electrical problem with an 86 CJ7
all right, so here's the deal, i'v had the jeep for a year. rebuilt pretty
much new everything, including the engine. about four months ago the engine
started missing every once and a while. i figured out that there was a short
in the wires with the help from a budddy. what i did was change the plugs,
wires, distributor cap, rotor, and the electrical module. it was working
perfectly for about a month, then yesterday, i drove from ann arbor, mi, to
somewhere in lower ohio, about a 5 1/2 hour drive. well, it started again.
then, today, i finished the trip all the way to north carolina. the whol;e
way it stuttered. i do not know what else could be shorting out any ideas?
much new everything, including the engine. about four months ago the engine
started missing every once and a while. i figured out that there was a short
in the wires with the help from a budddy. what i did was change the plugs,
wires, distributor cap, rotor, and the electrical module. it was working
perfectly for about a month, then yesterday, i drove from ann arbor, mi, to
somewhere in lower ohio, about a 5 1/2 hour drive. well, it started again.
then, today, i finished the trip all the way to north carolina. the whol;e
way it stuttered. i do not know what else could be shorting out any ideas?
08-12-2003, 11:54 PM
#2
Guest
Posts: n/a
Re: electrical problem with an 86 CJ7
Verify the electrical integrity of the engine ground strap/cable. A
corroded/loose engine ground strap/cable will produce such symptoms.
Bill wrote:
> all right, so here's the deal, i'v had the jeep for a year. rebuilt pretty
> much new everything, including the engine. about four months ago the engine
> started missing every once and a while. i figured out that there was a short
> in the wires with the help from a budddy. what i did was change the plugs,
> wires, distributor cap, rotor, and the electrical module. it was working
> perfectly for about a month, then yesterday, i drove from ann arbor, mi, to
> somewhere in lower ohio, about a 5 1/2 hour drive. well, it started again.
> then, today, i finished the trip all the way to north carolina. the whol;e
> way it stuttered. i do not know what else could be shorting out any ideas?
>
>
>
>
corroded/loose engine ground strap/cable will produce such symptoms.
Bill wrote:
> all right, so here's the deal, i'v had the jeep for a year. rebuilt pretty
> much new everything, including the engine. about four months ago the engine
> started missing every once and a while. i figured out that there was a short
> in the wires with the help from a budddy. what i did was change the plugs,
> wires, distributor cap, rotor, and the electrical module. it was working
> perfectly for about a month, then yesterday, i drove from ann arbor, mi, to
> somewhere in lower ohio, about a 5 1/2 hour drive. well, it started again.
> then, today, i finished the trip all the way to north carolina. the whol;e
> way it stuttered. i do not know what else could be shorting out any ideas?
>
>
>
>
08-13-2003, 08:57 AM
#3
Guest
Posts: n/a
Re: electrical problem with an 86 CJ7
What was shorting the first time?
You could be describing a punky ground to the body of the Jeep. It
could be a smaller black wire from the battery to the firewall or a mesh
cable from the back of the head to the firewall.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Bill wrote:
>
> all right, so here's the deal, i'v had the jeep for a year. rebuilt pretty
> much new everything, including the engine. about four months ago the engine
> started missing every once and a while. i figured out that there was a short
> in the wires with the help from a budddy. what i did was change the plugs,
> wires, distributor cap, rotor, and the electrical module. it was working
> perfectly for about a month, then yesterday, i drove from ann arbor, mi, to
> somewhere in lower ohio, about a 5 1/2 hour drive. well, it started again.
> then, today, i finished the trip all the way to north carolina. the whol;e
> way it stuttered. i do not know what else could be shorting out any ideas?
You could be describing a punky ground to the body of the Jeep. It
could be a smaller black wire from the battery to the firewall or a mesh
cable from the back of the head to the firewall.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Bill wrote:
>
> all right, so here's the deal, i'v had the jeep for a year. rebuilt pretty
> much new everything, including the engine. about four months ago the engine
> started missing every once and a while. i figured out that there was a short
> in the wires with the help from a budddy. what i did was change the plugs,
> wires, distributor cap, rotor, and the electrical module. it was working
> perfectly for about a month, then yesterday, i drove from ann arbor, mi, to
> somewhere in lower ohio, about a 5 1/2 hour drive. well, it started again.
> then, today, i finished the trip all the way to north carolina. the whol;e
> way it stuttered. i do not know what else could be shorting out any ideas?
08-13-2003, 03:41 PM
#4
Guest
Posts: n/a
Re: electrical problem with an 86 CJ7
Have you made sure the fule filter is not clogged? If the filter is getting
plugged up, the motor can run fine at relatively low speeds, but miss alot
at high speeds.
"Bill" <bsears@bellsouth.net> wrote in message
news:pqg_a.3442$_3.1033@fe02.atl2.webusenet.com...
> all right, so here's the deal, i'v had the jeep for a year. rebuilt pretty
> much new everything, including the engine. about four months ago the
engine
> started missing every once and a while. i figured out that there was a
short
> in the wires with the help from a budddy. what i did was change the plugs,
> wires, distributor cap, rotor, and the electrical module. it was working
> perfectly for about a month, then yesterday, i drove from ann arbor, mi,
to
> somewhere in lower ohio, about a 5 1/2 hour drive. well, it started again.
> then, today, i finished the trip all the way to north carolina. the whol;e
> way it stuttered. i do not know what else could be shorting out any ideas?
>
>
>
>
plugged up, the motor can run fine at relatively low speeds, but miss alot
at high speeds.
"Bill" <bsears@bellsouth.net> wrote in message
news:pqg_a.3442$_3.1033@fe02.atl2.webusenet.com...
> all right, so here's the deal, i'v had the jeep for a year. rebuilt pretty
> much new everything, including the engine. about four months ago the
engine
> started missing every once and a while. i figured out that there was a
short
> in the wires with the help from a budddy. what i did was change the plugs,
> wires, distributor cap, rotor, and the electrical module. it was working
> perfectly for about a month, then yesterday, i drove from ann arbor, mi,
to
> somewhere in lower ohio, about a 5 1/2 hour drive. well, it started again.
> then, today, i finished the trip all the way to north carolina. the whol;e
> way it stuttered. i do not know what else could be shorting out any ideas?
>
>
>
>
04-22-2004, 02:01 AM
#5
Guest
Posts: n/a
Re: electrical problem with an 86 CJ7
"Bill" <bsears@bellsouth.net> wrote in message
news:pqg_a.3442$_3.1033@fe02.atl2.webusenet.com...
> all right, so here's the deal, i'v had the jeep for a year. rebuilt pretty
> much new everything, including the engine. about four months ago the
engine
> started missing every once and a while. i figured out that there was a
short
> in the wires with the help from a budddy. what i did was change the plugs,
> wires, distributor cap, rotor, and the electrical module. it was working
> perfectly for about a month, then yesterday, i drove from ann arbor, mi,
to
> somewhere in lower ohio, about a 5 1/2 hour drive. well, it started again.
> then, today, i finished the trip all the way to north carolina. the whol;e
> way it stuttered. i do not know what else could be shorting out any ideas?
>
> If your symptoms are the same as before the fix, I would guess the same
problem resurfaced. I would check for any wires especially plug wires that
melted through by finding their way on to the exhause manifold resulting in
shorting your spark to ground for one or more pistons..
A good visual for pinched/melted wires, or loose connections is probably a
good idea. If that netted zero, I would pull the electrical module (I
assume you mean ignition module) and take it in for testing. Most of the
chain part stores have a test fixture for these.
If all that nets zero you will probably need some qualified help.>
>
04-22-2004, 02:01 AM
#6
Guest
Posts: n/a
Re: electrical problem with an 86 CJ7
"Bill" <bsears@bellsouth.net> wrote in message
news:pqg_a.3442$_3.1033@fe02.atl2.webusenet.com...
> all right, so here's the deal, i'v had the jeep for a year. rebuilt pretty
> much new everything, including the engine. about four months ago the
engine
> started missing every once and a while. i figured out that there was a
short
> in the wires with the help from a budddy. what i did was change the plugs,
> wires, distributor cap, rotor, and the electrical module. it was working
> perfectly for about a month, then yesterday, i drove from ann arbor, mi,
to
> somewhere in lower ohio, about a 5 1/2 hour drive. well, it started again.
> then, today, i finished the trip all the way to north carolina. the whol;e
> way it stuttered. i do not know what else could be shorting out any ideas?
>
> If your symptoms are the same as before the fix, I would guess the same
problem resurfaced. I would check for any wires especially plug wires that
melted through by finding their way on to the exhause manifold resulting in
shorting your spark to ground for one or more pistons..
A good visual for pinched/melted wires, or loose connections is probably a
good idea. If that netted zero, I would pull the electrical module (I
assume you mean ignition module) and take it in for testing. Most of the
chain part stores have a test fixture for these.
If all that nets zero you will probably need some qualified help.>
>
04-22-2004, 02:01 AM
#7
Guest
Posts: n/a
Re: electrical problem with an 86 CJ7
"Bill" <bsears@bellsouth.net> wrote in message
news:pqg_a.3442$_3.1033@fe02.atl2.webusenet.com...
> all right, so here's the deal, i'v had the jeep for a year. rebuilt pretty
> much new everything, including the engine. about four months ago the
engine
> started missing every once and a while. i figured out that there was a
short
> in the wires with the help from a budddy. what i did was change the plugs,
> wires, distributor cap, rotor, and the electrical module. it was working
> perfectly for about a month, then yesterday, i drove from ann arbor, mi,
to
> somewhere in lower ohio, about a 5 1/2 hour drive. well, it started again.
> then, today, i finished the trip all the way to north carolina. the whol;e
> way it stuttered. i do not know what else could be shorting out any ideas?
>
> If your symptoms are the same as before the fix, I would guess the same
problem resurfaced. I would check for any wires especially plug wires that
melted through by finding their way on to the exhause manifold resulting in
shorting your spark to ground for one or more pistons..
A good visual for pinched/melted wires, or loose connections is probably a
good idea. If that netted zero, I would pull the electrical module (I
assume you mean ignition module) and take it in for testing. Most of the
chain part stores have a test fixture for these.
If all that nets zero you will probably need some qualified help.>
>
04-22-2004, 02:01 AM
#8
Guest
Posts: n/a
Re: electrical problem with an 86 CJ7
"Bill" <bsears@bellsouth.net> wrote in message
news:pqg_a.3442$_3.1033@fe02.atl2.webusenet.com...
> all right, so here's the deal, i'v had the jeep for a year. rebuilt pretty
> much new everything, including the engine. about four months ago the
engine
> started missing every once and a while. i figured out that there was a
short
> in the wires with the help from a budddy. what i did was change the plugs,
> wires, distributor cap, rotor, and the electrical module. it was working
> perfectly for about a month, then yesterday, i drove from ann arbor, mi,
to
> somewhere in lower ohio, about a 5 1/2 hour drive. well, it started again.
> then, today, i finished the trip all the way to north carolina. the whol;e
> way it stuttered. i do not know what else could be shorting out any ideas?
>
> If your symptoms are the same as before the fix, I would guess the same
problem resurfaced. I would check for any wires especially plug wires that
melted through by finding their way on to the exhause manifold resulting in
shorting your spark to ground for one or more pistons..
A good visual for pinched/melted wires, or loose connections is probably a
good idea. If that netted zero, I would pull the electrical module (I
assume you mean ignition module) and take it in for testing. Most of the
chain part stores have a test fixture for these.
If all that nets zero you will probably need some qualified help.>
>
03-16-2006, 08:49 PM
#9
Guest
Posts: n/a
Re: electrical problem with an 86 CJ7
Check the condensor (capacitor) across the points if you have one
"Bill" <bsears@bellsouth.net> wrote in message
news:pqg_a.3442$_3.1033@fe02.atl2.webusenet.com...
> all right, so here's the deal, i'v had the jeep for a year. rebuilt pretty
> much new everything, including the engine. about four months ago the
> engine
> started missing every once and a while. i figured out that there was a
> short
> in the wires with the help from a budddy. what i did was change the plugs,
> wires, distributor cap, rotor, and the electrical module. it was working
> perfectly for about a month, then yesterday, i drove from ann arbor, mi,
> to
> somewhere in lower ohio, about a 5 1/2 hour drive. well, it started again.
> then, today, i finished the trip all the way to north carolina. the whol;e
> way it stuttered. i do not know what else could be shorting out any ideas?
>
>
>
>
"Bill" <bsears@bellsouth.net> wrote in message
news:pqg_a.3442$_3.1033@fe02.atl2.webusenet.com...
> all right, so here's the deal, i'v had the jeep for a year. rebuilt pretty
> much new everything, including the engine. about four months ago the
> engine
> started missing every once and a while. i figured out that there was a
> short
> in the wires with the help from a budddy. what i did was change the plugs,
> wires, distributor cap, rotor, and the electrical module. it was working
> perfectly for about a month, then yesterday, i drove from ann arbor, mi,
> to
> somewhere in lower ohio, about a 5 1/2 hour drive. well, it started again.
> then, today, i finished the trip all the way to north carolina. the whol;e
> way it stuttered. i do not know what else could be shorting out any ideas?
>
>
>
>
03-16-2006, 08:49 PM
#10
Guest
Posts: n/a
Re: electrical problem with an 86 CJ7
Check the condensor (capacitor) across the points if you have one
"Bill" <bsears@bellsouth.net> wrote in message
news:pqg_a.3442$_3.1033@fe02.atl2.webusenet.com...
> all right, so here's the deal, i'v had the jeep for a year. rebuilt pretty
> much new everything, including the engine. about four months ago the
> engine
> started missing every once and a while. i figured out that there was a
> short
> in the wires with the help from a budddy. what i did was change the plugs,
> wires, distributor cap, rotor, and the electrical module. it was working
> perfectly for about a month, then yesterday, i drove from ann arbor, mi,
> to
> somewhere in lower ohio, about a 5 1/2 hour drive. well, it started again.
> then, today, i finished the trip all the way to north carolina. the whol;e
> way it stuttered. i do not know what else could be shorting out any ideas?
>
>
>
>
"Bill" <bsears@bellsouth.net> wrote in message
news:pqg_a.3442$_3.1033@fe02.atl2.webusenet.com...
> all right, so here's the deal, i'v had the jeep for a year. rebuilt pretty
> much new everything, including the engine. about four months ago the
> engine
> started missing every once and a while. i figured out that there was a
> short
> in the wires with the help from a budddy. what i did was change the plugs,
> wires, distributor cap, rotor, and the electrical module. it was working
> perfectly for about a month, then yesterday, i drove from ann arbor, mi,
> to
> somewhere in lower ohio, about a 5 1/2 hour drive. well, it started again.
> then, today, i finished the trip all the way to north carolina. the whol;e
> way it stuttered. i do not know what else could be shorting out any ideas?
>
>
>
>