I know this questions has been asked in here before, but I've run out
of ideas. I have a '94 Jeep Cherokee with a 4.0 engine. It's got
151,000 miles and its stalling at random times. Mostly when just
driving along on the highway.

Here is a list of things I've already done ...

1. Replaced the crank sensor
2. Replaced the MAP sensor
3. Replaced the computer
4. Cleaned throttle body, Idle Air Controller, crank sensor connector
5. Bypassed wiring harness from computer to crank sensor
6. Replaced the fuel pump and fuel filter
7. checked ground wire from block to firewall
8. checked ground from battery

The computer is still showing codes 11 and 12 when it stalls. If
anyone has any suggestions I would really appreciate it. Thanks.

Rob

 

Code 11: http://minimopar.knizefamily.net/fault/code11.html Code
12: http://minimopar.knizefamily.net/fault/code12.html A bad connection
or rare, but it's happen to a few here the computer gave up.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

themophead wrote:
>
> I know this questions has been asked in here before, but I've run out
> of ideas. I have a '94 Jeep Cherokee with a 4.0 engine. It's got
> 151,000 miles and its stalling at random times. Mostly when just
> driving along on the highway.
>
> Here is a list of things I've already done ...
>
> 1. Replaced the crank sensor
> 2. Replaced the MAP sensor
> 3. Replaced the computer
> 4. Cleaned throttle body, Idle Air Controller, crank sensor connector
> 5. Bypassed wiring harness from computer to crank sensor
> 6. Replaced the fuel pump and fuel filter
> 7. checked ground wire from block to firewall
> 8. checked ground from battery
>
> The computer is still showing codes 11 and 12 when it stalls. If
> anyone has any suggestions I would really appreciate it. Thanks.
>
> Rob

 

Code 11: http://minimopar.knizefamily.net/fault/code11.html Code
12: http://minimopar.knizefamily.net/fault/code12.html A bad connection
or rare, but it's happen to a few here the computer gave up.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

themophead wrote:
>
> I know this questions has been asked in here before, but I've run out
> of ideas. I have a '94 Jeep Cherokee with a 4.0 engine. It's got
> 151,000 miles and its stalling at random times. Mostly when just
> driving along on the highway.
>
> Here is a list of things I've already done ...
>
> 1. Replaced the crank sensor
> 2. Replaced the MAP sensor
> 3. Replaced the computer
> 4. Cleaned throttle body, Idle Air Controller, crank sensor connector
> 5. Bypassed wiring harness from computer to crank sensor
> 6. Replaced the fuel pump and fuel filter
> 7. checked ground wire from block to firewall
> 8. checked ground from battery
>
> The computer is still showing codes 11 and 12 when it stalls. If
> anyone has any suggestions I would really appreciate it. Thanks.
>
> Rob

 

Code 11: http://minimopar.knizefamily.net/fault/code11.html Code
12: http://minimopar.knizefamily.net/fault/code12.html A bad connection
or rare, but it's happen to a few here the computer gave up.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

themophead wrote:
>
> I know this questions has been asked in here before, but I've run out
> of ideas. I have a '94 Jeep Cherokee with a 4.0 engine. It's got
> 151,000 miles and its stalling at random times. Mostly when just
> driving along on the highway.
>
> Here is a list of things I've already done ...
>
> 1. Replaced the crank sensor
> 2. Replaced the MAP sensor
> 3. Replaced the computer
> 4. Cleaned throttle body, Idle Air Controller, crank sensor connector
> 5. Bypassed wiring harness from computer to crank sensor
> 6. Replaced the fuel pump and fuel filter
> 7. checked ground wire from block to firewall
> 8. checked ground from battery
>
> The computer is still showing codes 11 and 12 when it stalls. If
> anyone has any suggestions I would really appreciate it. Thanks.
>
> Rob

 

Code 11: http://minimopar.knizefamily.net/fault/code11.html Code
12: http://minimopar.knizefamily.net/fault/code12.html A bad connection
or rare, but it's happen to a few here the computer gave up.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

themophead wrote:
>
> I know this questions has been asked in here before, but I've run out
> of ideas. I have a '94 Jeep Cherokee with a 4.0 engine. It's got
> 151,000 miles and its stalling at random times. Mostly when just
> driving along on the highway.
>
> Here is a list of things I've already done ...
>
> 1. Replaced the crank sensor
> 2. Replaced the MAP sensor
> 3. Replaced the computer
> 4. Cleaned throttle body, Idle Air Controller, crank sensor connector
> 5. Bypassed wiring harness from computer to crank sensor
> 6. Replaced the fuel pump and fuel filter
> 7. checked ground wire from block to firewall
> 8. checked ground from battery
>
> The computer is still showing codes 11 and 12 when it stalls. If
> anyone has any suggestions I would really appreciate it. Thanks.
>
> Rob

 

First u must determine if the fuel system or ignition system
is causing the problem.
In the meantime it appears you have become very proficient at fixing things
that are not broke.
Sounds like the ignition module is failing when it heats up,
The module is nothing more than a transducer that
converts a magnetic signal into a electrical signal
which triggers the coil.
You say that the crank trigger (magnetic switch)
has already been changed so let's rule that out.
The module or transducer may be mounted integrally inside a ignition box
(similar to older fords)
I am not that familiar with your particular ignition system,
but I'm sure you have some type of control unit or
"little black box".
What do those codes that are stored in RAM tranlate into:
I'm sure 1 of them is probably VSS (vehicle speed sensor), but what is the
other one translated.........
--
Mad-Dog
'79 Chevy K-10
Slightly modified
--
"themophead" <themophead@hotmail.com> wrote in message
news:e73cb4b4.0407091131.324f1f1d@posting.google.c om...
> I know this questions has been asked in here before, but I've run out
> of ideas. I have a '94 Jeep Cherokee with a 4.0 engine. It's got
> 151,000 miles and its stalling at random times. Mostly when just
> driving along on the highway.
>
> Here is a list of things I've already done ...
>
> 1. Replaced the crank sensor
> 2. Replaced the MAP sensor
> 3. Replaced the computer
> 4. Cleaned throttle body, Idle Air Controller, crank sensor connector
> 5. Bypassed wiring harness from computer to crank sensor
> 6. Replaced the fuel pump and fuel filter
> 7. checked ground wire from block to firewall
> 8. checked ground from battery
>
> The computer is still showing codes 11 and 12 when it stalls. If
> anyone has any suggestions I would really appreciate it. Thanks.
>
> Rob

 

First u must determine if the fuel system or ignition system
is causing the problem.
In the meantime it appears you have become very proficient at fixing things
that are not broke.
Sounds like the ignition module is failing when it heats up,
The module is nothing more than a transducer that
converts a magnetic signal into a electrical signal
which triggers the coil.
You say that the crank trigger (magnetic switch)
has already been changed so let's rule that out.
The module or transducer may be mounted integrally inside a ignition box
(similar to older fords)
I am not that familiar with your particular ignition system,
but I'm sure you have some type of control unit or
"little black box".
What do those codes that are stored in RAM tranlate into:
I'm sure 1 of them is probably VSS (vehicle speed sensor), but what is the
other one translated.........
--
Mad-Dog
'79 Chevy K-10
Slightly modified
--
"themophead" <themophead@hotmail.com> wrote in message
news:e73cb4b4.0407091131.324f1f1d@posting.google.c om...
> I know this questions has been asked in here before, but I've run out
> of ideas. I have a '94 Jeep Cherokee with a 4.0 engine. It's got
> 151,000 miles and its stalling at random times. Mostly when just
> driving along on the highway.
>
> Here is a list of things I've already done ...
>
> 1. Replaced the crank sensor
> 2. Replaced the MAP sensor
> 3. Replaced the computer
> 4. Cleaned throttle body, Idle Air Controller, crank sensor connector
> 5. Bypassed wiring harness from computer to crank sensor
> 6. Replaced the fuel pump and fuel filter
> 7. checked ground wire from block to firewall
> 8. checked ground from battery
>
> The computer is still showing codes 11 and 12 when it stalls. If
> anyone has any suggestions I would really appreciate it. Thanks.
>
> Rob

 

First u must determine if the fuel system or ignition system
is causing the problem.
In the meantime it appears you have become very proficient at fixing things
that are not broke.
Sounds like the ignition module is failing when it heats up,
The module is nothing more than a transducer that
converts a magnetic signal into a electrical signal
which triggers the coil.
You say that the crank trigger (magnetic switch)
has already been changed so let's rule that out.
The module or transducer may be mounted integrally inside a ignition box
(similar to older fords)
I am not that familiar with your particular ignition system,
but I'm sure you have some type of control unit or
"little black box".
What do those codes that are stored in RAM tranlate into:
I'm sure 1 of them is probably VSS (vehicle speed sensor), but what is the
other one translated.........
--
Mad-Dog
'79 Chevy K-10
Slightly modified
--
"themophead" <themophead@hotmail.com> wrote in message
news:e73cb4b4.0407091131.324f1f1d@posting.google.c om...
> I know this questions has been asked in here before, but I've run out
> of ideas. I have a '94 Jeep Cherokee with a 4.0 engine. It's got
> 151,000 miles and its stalling at random times. Mostly when just
> driving along on the highway.
>
> Here is a list of things I've already done ...
>
> 1. Replaced the crank sensor
> 2. Replaced the MAP sensor
> 3. Replaced the computer
> 4. Cleaned throttle body, Idle Air Controller, crank sensor connector
> 5. Bypassed wiring harness from computer to crank sensor
> 6. Replaced the fuel pump and fuel filter
> 7. checked ground wire from block to firewall
> 8. checked ground from battery
>
> The computer is still showing codes 11 and 12 when it stalls. If
> anyone has any suggestions I would really appreciate it. Thanks.
>
> Rob

 

First u must determine if the fuel system or ignition system
is causing the problem.
In the meantime it appears you have become very proficient at fixing things
that are not broke.
Sounds like the ignition module is failing when it heats up,
The module is nothing more than a transducer that
converts a magnetic signal into a electrical signal
which triggers the coil.
You say that the crank trigger (magnetic switch)
has already been changed so let's rule that out.
The module or transducer may be mounted integrally inside a ignition box
(similar to older fords)
I am not that familiar with your particular ignition system,
but I'm sure you have some type of control unit or
"little black box".
What do those codes that are stored in RAM tranlate into:
I'm sure 1 of them is probably VSS (vehicle speed sensor), but what is the
other one translated.........
--
Mad-Dog
'79 Chevy K-10
Slightly modified
--
"themophead" <themophead@hotmail.com> wrote in message
news:e73cb4b4.0407091131.324f1f1d@posting.google.c om...
> I know this questions has been asked in here before, but I've run out
> of ideas. I have a '94 Jeep Cherokee with a 4.0 engine. It's got
> 151,000 miles and its stalling at random times. Mostly when just
> driving along on the highway.
>
> Here is a list of things I've already done ...
>
> 1. Replaced the crank sensor
> 2. Replaced the MAP sensor
> 3. Replaced the computer
> 4. Cleaned throttle body, Idle Air Controller, crank sensor connector
> 5. Bypassed wiring harness from computer to crank sensor
> 6. Replaced the fuel pump and fuel filter
> 7. checked ground wire from block to firewall
> 8. checked ground from battery
>
> The computer is still showing codes 11 and 12 when it stalls. If
> anyone has any suggestions I would really appreciate it. Thanks.
>
> Rob

 

10 to 1 it's a bad ignition module. I had the same problem, replaced it with
one from a junkyard for $50, and it has run fine ever since.


"themophead" <themophead@hotmail.com> wrote in message
news:e73cb4b4.0407091131.324f1f1d@posting.google.c om...
> I know this questions has been asked in here before, but I've run out
> of ideas. I have a '94 Jeep Cherokee with a 4.0 engine. It's got
> 151,000 miles and its stalling at random times. Mostly when just
> driving along on the highway.
>
> Here is a list of things I've already done ...
>
> 1. Replaced the crank sensor
> 2. Replaced the MAP sensor
> 3. Replaced the computer
> 4. Cleaned throttle body, Idle Air Controller, crank sensor connector
> 5. Bypassed wiring harness from computer to crank sensor
> 6. Replaced the fuel pump and fuel filter
> 7. checked ground wire from block to firewall
> 8. checked ground from battery
>
> The computer is still showing codes 11 and 12 when it stalls. If
> anyone has any suggestions I would really appreciate it. Thanks.
>
> Rob