I have a '85 CJ7 Laredo. I have spent the last couple of years messing
around with it. Here is what it has:
1. Fiberglass Body,
2. New Carb
3. Removed exhaust manifold and put on headers.
4. Ravin muffler
5. KC Head lights.

Among other things. Point is that after my last project (the new carb.)
The jeep ran great - for about a day. Then it hesitates and stalls for
no reason (while I am driving or sitting still).

Some times it starts back up with other times It won't even turn over.
If it sits for awhile it will start and sometimes it runs well for an
hour or so and then back to the hesitating and stalling.

I have chased down every ground connection (that I can get to), looked
for poorly crimped wires, etc.

Can anyone help?

 

Is your starter solenoid well grounded?

Does it share a ground with the ignition module?

What did you do with the computer now that it is in limp home mode?

I also have a 'glass CJ7.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

brandon.armstrong@gmail.com wrote:
>
> I have a '85 CJ7 Laredo. I have spent the last couple of years messing
> around with it. Here is what it has:
> 1. Fiberglass Body,
> 2. New Carb
> 3. Removed exhaust manifold and put on headers.
> 4. Ravin muffler
> 5. KC Head lights.
>
> Among other things. Point is that after my last project (the new carb.)
> The jeep ran great - for about a day. Then it hesitates and stalls for
> no reason (while I am driving or sitting still).
>
> Some times it starts back up with other times It won't even turn over.
> If it sits for awhile it will start and sometimes it runs well for an
> hour or so and then back to the hesitating and stalling.
>
> I have chased down every ground connection (that I can get to), looked
> for poorly crimped wires, etc.
>
> Can anyone help?

 

Is your starter solenoid well grounded?

Does it share a ground with the ignition module?

What did you do with the computer now that it is in limp home mode?

I also have a 'glass CJ7.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

brandon.armstrong@gmail.com wrote:
>
> I have a '85 CJ7 Laredo. I have spent the last couple of years messing
> around with it. Here is what it has:
> 1. Fiberglass Body,
> 2. New Carb
> 3. Removed exhaust manifold and put on headers.
> 4. Ravin muffler
> 5. KC Head lights.
>
> Among other things. Point is that after my last project (the new carb.)
> The jeep ran great - for about a day. Then it hesitates and stalls for
> no reason (while I am driving or sitting still).
>
> Some times it starts back up with other times It won't even turn over.
> If it sits for awhile it will start and sometimes it runs well for an
> hour or so and then back to the hesitating and stalling.
>
> I have chased down every ground connection (that I can get to), looked
> for poorly crimped wires, etc.
>
> Can anyone help?

 

Is your starter solenoid well grounded?

Does it share a ground with the ignition module?

What did you do with the computer now that it is in limp home mode?

I also have a 'glass CJ7.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

brandon.armstrong@gmail.com wrote:
>
> I have a '85 CJ7 Laredo. I have spent the last couple of years messing
> around with it. Here is what it has:
> 1. Fiberglass Body,
> 2. New Carb
> 3. Removed exhaust manifold and put on headers.
> 4. Ravin muffler
> 5. KC Head lights.
>
> Among other things. Point is that after my last project (the new carb.)
> The jeep ran great - for about a day. Then it hesitates and stalls for
> no reason (while I am driving or sitting still).
>
> Some times it starts back up with other times It won't even turn over.
> If it sits for awhile it will start and sometimes it runs well for an
> hour or so and then back to the hesitating and stalling.
>
> I have chased down every ground connection (that I can get to), looked
> for poorly crimped wires, etc.
>
> Can anyone help?

 

Is your starter solenoid well grounded?

Does it share a ground with the ignition module?

What did you do with the computer now that it is in limp home mode?

I also have a 'glass CJ7.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

brandon.armstrong@gmail.com wrote:
>
> I have a '85 CJ7 Laredo. I have spent the last couple of years messing
> around with it. Here is what it has:
> 1. Fiberglass Body,
> 2. New Carb
> 3. Removed exhaust manifold and put on headers.
> 4. Ravin muffler
> 5. KC Head lights.
>
> Among other things. Point is that after my last project (the new carb.)
> The jeep ran great - for about a day. Then it hesitates and stalls for
> no reason (while I am driving or sitting still).
>
> Some times it starts back up with other times It won't even turn over.
> If it sits for awhile it will start and sometimes it runs well for an
> hour or so and then back to the hesitating and stalling.
>
> I have chased down every ground connection (that I can get to), looked
> for poorly crimped wires, etc.
>
> Can anyone help?

 

Not sure if it is the same, ... (please correct me if I'm wrong
everybody)

But that all sounds very similar to a friend's VW Beetle a few years
ago.. it ended up being his ignition coil. When the thing heated up,
the engine would die, until it cooled off... at which point, you could
start it up and run for a while..

Check the spark quality when it's running fine, then check it after it
stalls..?

 

Not sure if it is the same, ... (please correct me if I'm wrong
everybody)

But that all sounds very similar to a friend's VW Beetle a few years
ago.. it ended up being his ignition coil. When the thing heated up,
the engine would die, until it cooled off... at which point, you could
start it up and run for a while..

Check the spark quality when it's running fine, then check it after it
stalls..?

 

Not sure if it is the same, ... (please correct me if I'm wrong
everybody)

But that all sounds very similar to a friend's VW Beetle a few years
ago.. it ended up being his ignition coil. When the thing heated up,
the engine would die, until it cooled off... at which point, you could
start it up and run for a while..

Check the spark quality when it's running fine, then check it after it
stalls..?

 

Not sure if it is the same, ... (please correct me if I'm wrong
everybody)

But that all sounds very similar to a friend's VW Beetle a few years
ago.. it ended up being his ignition coil. When the thing heated up,
the engine would die, until it cooled off... at which point, you could
start it up and run for a while..

Check the spark quality when it's running fine, then check it after it
stalls..?

 

Ignition module can do that too. Electronic stores sell spray freeze so
you can spray the coil or module and see if it comes back good. On a
'glass body, ground loop issues can cause strange stuff like that too
and overheat parts.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

Dave wrote:
>
> Not sure if it is the same, ... (please correct me if I'm wrong
> everybody)
>
> But that all sounds very similar to a friend's VW Beetle a few years
> ago.. it ended up being his ignition coil. When the thing heated up,
> the engine would die, until it cooled off... at which point, you could
> start it up and run for a while..
>
> Check the spark quality when it's running fine, then check it after it
> stalls..?