93 Jeep Cherokee won't start
 

The jeep is V6, auto. It ran fine every day till I let it sit for a
month, now I can't get it started. Never had a starting problem. I
have talked to three mechanics, and tried many things. I tried a new
coil, new plugs, new distributor, new rotor, new CPS (crankshaft
position sensor). I don't get it, after I put the new CPS in it
started, then I shut it off, and tried to start it again, and
wouldn't. I pulled it out, made sure there was a good ground, nothing,
just cranks and cranks. I tried the ground thing, made sure the block
had a good ground using jumper cables still nothing. I unplugged all
the connectors to everything and replugged them in, tried to start it,
and it started, then shut it down and it won't start again. I did the
same thing, unplugging everything, and still nothing. I got yet
another CPS and tried that, still nothing, so I don't think it is
that. The plugs are not firing. The timing belt is fine. Those are the
only two times I have gotten it to start in over 100 tries. I have
plundered the newsgroups looking for advice, the two main things I
tried (grounding and CPS), and all the obvious stuff. What else could
it be? When it did start up, it started up instantly. I also tried
starting fluid, and am pretty sure it is not the fuel pump.

Please help with advise, I hate to take it in the shop after trying
all this stuff, since they will do the same stuff, or I am afraid it
will work for them.

Re: 93 Jeep Cherokee won't start
 

First, there is no such thing as a V6 in a 1993 Jeep. It is either an
I-6 or a V8. The CPS seems to be the most common failure point, but
you have other components to consider. If the automatic shut down
relay (ASD) is not working, the engine will not start. The overall
brain of the engine is the Powertrain Control Module (PCM.) If that
is faulty nothing works. The PCM drives the ASD relay. The PCM takes
special equipment for diagnosis. Sounds like you should take it to a
Jeep dealer, not an independent.

----

On 1 Dec 2003 05:39:03 -0800, raydog153@hotmail.com (Ray) wrote:

>The jeep is V6, auto. It ran fine every day till I let it sit for a
>month, now I can't get it started. Never had a starting problem. I
>have talked to three mechanics, and tried many things. I tried a new
>coil, new plugs, new distributor, new rotor, new CPS (crankshaft
>position sensor). I don't get it, after I put the new CPS in it
>started, then I shut it off, and tried to start it again, and
>wouldn't. I pulled it out, made sure there was a good ground, nothing,
>just cranks and cranks. I tried the ground thing, made sure the block
>had a good ground using jumper cables still nothing. I unplugged all
>the connectors to everything and replugged them in, tried to start it,
>and it started, then shut it down and it won't start again. I did the
>same thing, unplugging everything, and still nothing. I got yet
>another CPS and tried that, still nothing, so I don't think it is
>that. The plugs are not firing. The timing belt is fine. Those are the
>only two times I have gotten it to start in over 100 tries. I have
>plundered the newsgroups looking for advice, the two main things I
>tried (grounding and CPS), and all the obvious stuff. What else could
>it be? When it did start up, it started up instantly. I also tried
>starting fluid, and am pretty sure it is not the fuel pump.
>
>Please help with advise, I hate to take it in the shop after trying
>all this stuff, since they will do the same stuff, or I am afraid it
>will work for them.

Re: 93 Jeep Cherokee won't start
 

First, there is no such thing as a V6 in a 1993 Jeep. It is either an
I-6 or a V8. The CPS seems to be the most common failure point, but
you have other components to consider. If the automatic shut down
relay (ASD) is not working, the engine will not start. The overall
brain of the engine is the Powertrain Control Module (PCM.) If that
is faulty nothing works. The PCM drives the ASD relay. The PCM takes
special equipment for diagnosis. Sounds like you should take it to a
Jeep dealer, not an independent.

----

On 1 Dec 2003 05:39:03 -0800, raydog153@hotmail.com (Ray) wrote:

>The jeep is V6, auto. It ran fine every day till I let it sit for a
>month, now I can't get it started. Never had a starting problem. I
>have talked to three mechanics, and tried many things. I tried a new
>coil, new plugs, new distributor, new rotor, new CPS (crankshaft
>position sensor). I don't get it, after I put the new CPS in it
>started, then I shut it off, and tried to start it again, and
>wouldn't. I pulled it out, made sure there was a good ground, nothing,
>just cranks and cranks. I tried the ground thing, made sure the block
>had a good ground using jumper cables still nothing. I unplugged all
>the connectors to everything and replugged them in, tried to start it,
>and it started, then shut it down and it won't start again. I did the
>same thing, unplugging everything, and still nothing. I got yet
>another CPS and tried that, still nothing, so I don't think it is
>that. The plugs are not firing. The timing belt is fine. Those are the
>only two times I have gotten it to start in over 100 tries. I have
>plundered the newsgroups looking for advice, the two main things I
>tried (grounding and CPS), and all the obvious stuff. What else could
>it be? When it did start up, it started up instantly. I also tried
>starting fluid, and am pretty sure it is not the fuel pump.
>
>Please help with advise, I hate to take it in the shop after trying
>all this stuff, since they will do the same stuff, or I am afraid it
>will work for them.

Re: 93 Jeep Cherokee won't start
 

First, there is no such thing as a V6 in a 1993 Jeep. It is either an
I-6 or a V8. The CPS seems to be the most common failure point, but
you have other components to consider. If the automatic shut down
relay (ASD) is not working, the engine will not start. The overall
brain of the engine is the Powertrain Control Module (PCM.) If that
is faulty nothing works. The PCM drives the ASD relay. The PCM takes
special equipment for diagnosis. Sounds like you should take it to a
Jeep dealer, not an independent.

----

On 1 Dec 2003 05:39:03 -0800, raydog153@hotmail.com (Ray) wrote:

>The jeep is V6, auto. It ran fine every day till I let it sit for a
>month, now I can't get it started. Never had a starting problem. I
>have talked to three mechanics, and tried many things. I tried a new
>coil, new plugs, new distributor, new rotor, new CPS (crankshaft
>position sensor). I don't get it, after I put the new CPS in it
>started, then I shut it off, and tried to start it again, and
>wouldn't. I pulled it out, made sure there was a good ground, nothing,
>just cranks and cranks. I tried the ground thing, made sure the block
>had a good ground using jumper cables still nothing. I unplugged all
>the connectors to everything and replugged them in, tried to start it,
>and it started, then shut it down and it won't start again. I did the
>same thing, unplugging everything, and still nothing. I got yet
>another CPS and tried that, still nothing, so I don't think it is
>that. The plugs are not firing. The timing belt is fine. Those are the
>only two times I have gotten it to start in over 100 tries. I have
>plundered the newsgroups looking for advice, the two main things I
>tried (grounding and CPS), and all the obvious stuff. What else could
>it be? When it did start up, it started up instantly. I also tried
>starting fluid, and am pretty sure it is not the fuel pump.
>
>Please help with advise, I hate to take it in the shop after trying
>all this stuff, since they will do the same stuff, or I am afraid it
>will work for them.

Re: 93 Jeep Cherokee won't start
 

Before Mike R. say's it.. have you checked the ground wire from the engine
block to the fire wall?? if that cable is shot it will cause similar
symptoms. To check this, run a jumper cable from the negative terminal on
the battery to the engine block, if jeep starts then that the problem.

Snow...

"----" <r------33@cableone.net> wrote in message
news:3nmmsv4utft4todaabp0i48ui4nkfcpf0q@4ax.com...
> First, there is no such thing as a V6 in a 1993 Jeep. It is either an
> I-6 or a V8. The CPS seems to be the most common failure point, but
> you have other components to consider. If the automatic shut down
> relay (ASD) is not working, the engine will not start. The overall
> brain of the engine is the Powertrain Control Module (PCM.) If that
> is faulty nothing works. The PCM drives the ASD relay. The PCM takes
> special equipment for diagnosis. Sounds like you should take it to a
> Jeep dealer, not an independent.
>
> ----
>
> On 1 Dec 2003 05:39:03 -0800, raydog153@hotmail.com (Ray) wrote:
>
> >The jeep is V6, auto. It ran fine every day till I let it sit for a
> >month, now I can't get it started. Never had a starting problem. I
> >have talked to three mechanics, and tried many things. I tried a new
> >coil, new plugs, new distributor, new rotor, new CPS (crankshaft
> >position sensor). I don't get it, after I put the new CPS in it
> >started, then I shut it off, and tried to start it again, and
> >wouldn't. I pulled it out, made sure there was a good ground, nothing,
> >just cranks and cranks. I tried the ground thing, made sure the block
> >had a good ground using jumper cables still nothing. I unplugged all
> >the connectors to everything and replugged them in, tried to start it,
> >and it started, then shut it down and it won't start again. I did the
> >same thing, unplugging everything, and still nothing. I got yet
> >another CPS and tried that, still nothing, so I don't think it is
> >that. The plugs are not firing. The timing belt is fine. Those are the
> >only two times I have gotten it to start in over 100 tries. I have
> >plundered the newsgroups looking for advice, the two main things I
> >tried (grounding and CPS), and all the obvious stuff. What else could
> >it be? When it did start up, it started up instantly. I also tried
> >starting fluid, and am pretty sure it is not the fuel pump.
> >
> >Please help with advise, I hate to take it in the shop after trying
> >all this stuff, since they will do the same stuff, or I am afraid it
> >will work for them.
>

Re: 93 Jeep Cherokee won't start
 

Before Mike R. say's it.. have you checked the ground wire from the engine
block to the fire wall?? if that cable is shot it will cause similar
symptoms. To check this, run a jumper cable from the negative terminal on
the battery to the engine block, if jeep starts then that the problem.

Snow...

"----" <r------33@cableone.net> wrote in message
news:3nmmsv4utft4todaabp0i48ui4nkfcpf0q@4ax.com...
> First, there is no such thing as a V6 in a 1993 Jeep. It is either an
> I-6 or a V8. The CPS seems to be the most common failure point, but
> you have other components to consider. If the automatic shut down
> relay (ASD) is not working, the engine will not start. The overall
> brain of the engine is the Powertrain Control Module (PCM.) If that
> is faulty nothing works. The PCM drives the ASD relay. The PCM takes
> special equipment for diagnosis. Sounds like you should take it to a
> Jeep dealer, not an independent.
>
> ----
>
> On 1 Dec 2003 05:39:03 -0800, raydog153@hotmail.com (Ray) wrote:
>
> >The jeep is V6, auto. It ran fine every day till I let it sit for a
> >month, now I can't get it started. Never had a starting problem. I
> >have talked to three mechanics, and tried many things. I tried a new
> >coil, new plugs, new distributor, new rotor, new CPS (crankshaft
> >position sensor). I don't get it, after I put the new CPS in it
> >started, then I shut it off, and tried to start it again, and
> >wouldn't. I pulled it out, made sure there was a good ground, nothing,
> >just cranks and cranks. I tried the ground thing, made sure the block
> >had a good ground using jumper cables still nothing. I unplugged all
> >the connectors to everything and replugged them in, tried to start it,
> >and it started, then shut it down and it won't start again. I did the
> >same thing, unplugging everything, and still nothing. I got yet
> >another CPS and tried that, still nothing, so I don't think it is
> >that. The plugs are not firing. The timing belt is fine. Those are the
> >only two times I have gotten it to start in over 100 tries. I have
> >plundered the newsgroups looking for advice, the two main things I
> >tried (grounding and CPS), and all the obvious stuff. What else could
> >it be? When it did start up, it started up instantly. I also tried
> >starting fluid, and am pretty sure it is not the fuel pump.
> >
> >Please help with advise, I hate to take it in the shop after trying
> >all this stuff, since they will do the same stuff, or I am afraid it
> >will work for them.
>

Re: 93 Jeep Cherokee won't start
 

Before Mike R. say's it.. have you checked the ground wire from the engine
block to the fire wall?? if that cable is shot it will cause similar
symptoms. To check this, run a jumper cable from the negative terminal on
the battery to the engine block, if jeep starts then that the problem.

Snow...

"----" <r------33@cableone.net> wrote in message
news:3nmmsv4utft4todaabp0i48ui4nkfcpf0q@4ax.com...
> First, there is no such thing as a V6 in a 1993 Jeep. It is either an
> I-6 or a V8. The CPS seems to be the most common failure point, but
> you have other components to consider. If the automatic shut down
> relay (ASD) is not working, the engine will not start. The overall
> brain of the engine is the Powertrain Control Module (PCM.) If that
> is faulty nothing works. The PCM drives the ASD relay. The PCM takes
> special equipment for diagnosis. Sounds like you should take it to a
> Jeep dealer, not an independent.
>
> ----
>
> On 1 Dec 2003 05:39:03 -0800, raydog153@hotmail.com (Ray) wrote:
>
> >The jeep is V6, auto. It ran fine every day till I let it sit for a
> >month, now I can't get it started. Never had a starting problem. I
> >have talked to three mechanics, and tried many things. I tried a new
> >coil, new plugs, new distributor, new rotor, new CPS (crankshaft
> >position sensor). I don't get it, after I put the new CPS in it
> >started, then I shut it off, and tried to start it again, and
> >wouldn't. I pulled it out, made sure there was a good ground, nothing,
> >just cranks and cranks. I tried the ground thing, made sure the block
> >had a good ground using jumper cables still nothing. I unplugged all
> >the connectors to everything and replugged them in, tried to start it,
> >and it started, then shut it down and it won't start again. I did the
> >same thing, unplugging everything, and still nothing. I got yet
> >another CPS and tried that, still nothing, so I don't think it is
> >that. The plugs are not firing. The timing belt is fine. Those are the
> >only two times I have gotten it to start in over 100 tries. I have
> >plundered the newsgroups looking for advice, the two main things I
> >tried (grounding and CPS), and all the obvious stuff. What else could
> >it be? When it did start up, it started up instantly. I also tried
> >starting fluid, and am pretty sure it is not the fuel pump.
> >
> >Please help with advise, I hate to take it in the shop after trying
> >all this stuff, since they will do the same stuff, or I am afraid it
> >will work for them.
>

Re: 93 Jeep Cherokee won't start
 

"Snow" <snowball_2004@msn.com> wrote in message
news:gjLyb.3967$zf2.502753@news20.bellglobal.com.. .
: Before Mike R. say's it.. have you checked the ground wire from the engine
: block to the fire wall?? if that cable is shot it will cause similar
: symptoms. To check this, run a jumper cable from the negative terminal on
: the battery to the engine block, if jeep starts then that the problem.
:
: Snow...
:

I think he has covered that issue according to the OP.

: > >started, then I shut it off, and tried to start it again, and
: > >wouldn't. I pulled it out, made sure there was a good ground, nothing,
: > >just cranks and cranks. I tried the ground thing, made sure the block
: > >had a good ground using jumper cables still nothing. I unplugged all

Another notable item prone to failure is the neutral safety switch.
-Brian

Re: 93 Jeep Cherokee won't start
 

"Snow" <snowball_2004@msn.com> wrote in message
news:gjLyb.3967$zf2.502753@news20.bellglobal.com.. .
: Before Mike R. say's it.. have you checked the ground wire from the engine
: block to the fire wall?? if that cable is shot it will cause similar
: symptoms. To check this, run a jumper cable from the negative terminal on
: the battery to the engine block, if jeep starts then that the problem.
:
: Snow...
:

I think he has covered that issue according to the OP.

: > >started, then I shut it off, and tried to start it again, and
: > >wouldn't. I pulled it out, made sure there was a good ground, nothing,
: > >just cranks and cranks. I tried the ground thing, made sure the block
: > >had a good ground using jumper cables still nothing. I unplugged all

Another notable item prone to failure is the neutral safety switch.
-Brian

Re: 93 Jeep Cherokee won't start
 

"Snow" <snowball_2004@msn.com> wrote in message
news:gjLyb.3967$zf2.502753@news20.bellglobal.com.. .
: Before Mike R. say's it.. have you checked the ground wire from the engine
: block to the fire wall?? if that cable is shot it will cause similar
: symptoms. To check this, run a jumper cable from the negative terminal on
: the battery to the engine block, if jeep starts then that the problem.
:
: Snow...
:

I think he has covered that issue according to the OP.

: > >started, then I shut it off, and tried to start it again, and
: > >wouldn't. I pulled it out, made sure there was a good ground, nothing,
: > >just cranks and cranks. I tried the ground thing, made sure the block
: > >had a good ground using jumper cables still nothing. I unplugged all

Another notable item prone to failure is the neutral safety switch.
-Brian