'97 XJ won't start...and no codes
06-10-2007, 12:45 PM
#11
Guest
Posts: n/a
Re: '97 XJ won't start...and no codes
SnoMan wrote:
> On Sun, 10 Jun 2007 11:35:56 -0400, Mike Romain <romainm@sympatico.ca>
> wrote:
>
>> phantom_milkie@yahoo.com wrote:
>>> Hi,
>>>
>>> I have a 97 XJ that won't start, it turns over, but just won't fire
>>> up. Now, ordinarily, i wouldn't bother posting with something of this
>>> vague nature, however-- I can't pull up any codes. Not even a 55 will
>>> appear, so does that mean the computer brain is dead?
>>>
>>> The jeep was fine last night when I parked it, i filled up completely
>>> yesterday on gas...fuel pump? If it was something along those lines,
>>> wouldn't I still have at least a 55 appearing when i try for the
>>> codes?
>>>
>>> Any help would be appreciated,
>>>
>>> thanks
>>>
>>> Sandy
>>> phantom_milkie@yahoo.com
>>>
>> If the main ground for the body goes bad, the computer won't turn on.
>> On the older ones, this is a mesh strap from the rear of the engine head
>> to the firewall.
>>
>> There are more computer grounds on a bolt by the dipstick.
>>
>> Mike
>> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
>> 88 Cherokee 235 BFG AT's - Gone to the rust pile...
>> Canadian Off Road Trips Photos: Non members can still view!
>> Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
>> (More Off Road album links at bottom of the view page)
>
>
> The first thing I would suspect here is the crank position sensor. It
> will not always code. (it only codes if coil opens up not usually if
> the sensor is weak and not triggering right. When it is bad, you will
> not get any fire at all. Check it before you go on a wild goose chase
> like suggested above. If sensor is good then go to plan "B" the goose
> chase but the CPS's do go bad with age and can fail suddenly.
> -----------------
> TheSnoMan.com
So a failed CPS will prevent the computer from showing any codes eh.
Stalking Moron.
Mike
> On Sun, 10 Jun 2007 11:35:56 -0400, Mike Romain <romainm@sympatico.ca>
> wrote:
>
>> phantom_milkie@yahoo.com wrote:
>>> Hi,
>>>
>>> I have a 97 XJ that won't start, it turns over, but just won't fire
>>> up. Now, ordinarily, i wouldn't bother posting with something of this
>>> vague nature, however-- I can't pull up any codes. Not even a 55 will
>>> appear, so does that mean the computer brain is dead?
>>>
>>> The jeep was fine last night when I parked it, i filled up completely
>>> yesterday on gas...fuel pump? If it was something along those lines,
>>> wouldn't I still have at least a 55 appearing when i try for the
>>> codes?
>>>
>>> Any help would be appreciated,
>>>
>>> thanks
>>>
>>> Sandy
>>> phantom_milkie@yahoo.com
>>>
>> If the main ground for the body goes bad, the computer won't turn on.
>> On the older ones, this is a mesh strap from the rear of the engine head
>> to the firewall.
>>
>> There are more computer grounds on a bolt by the dipstick.
>>
>> Mike
>> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
>> 88 Cherokee 235 BFG AT's - Gone to the rust pile...
>> Canadian Off Road Trips Photos: Non members can still view!
>> Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
>> (More Off Road album links at bottom of the view page)
>
>
> The first thing I would suspect here is the crank position sensor. It
> will not always code. (it only codes if coil opens up not usually if
> the sensor is weak and not triggering right. When it is bad, you will
> not get any fire at all. Check it before you go on a wild goose chase
> like suggested above. If sensor is good then go to plan "B" the goose
> chase but the CPS's do go bad with age and can fail suddenly.
> -----------------
> TheSnoMan.com
So a failed CPS will prevent the computer from showing any codes eh.
Stalking Moron.
Mike
06-10-2007, 12:45 PM
#12
Guest
Posts: n/a
Re: '97 XJ won't start...and no codes
SnoMan wrote:
> On Sun, 10 Jun 2007 11:35:56 -0400, Mike Romain <romainm@sympatico.ca>
> wrote:
>
>> phantom_milkie@yahoo.com wrote:
>>> Hi,
>>>
>>> I have a 97 XJ that won't start, it turns over, but just won't fire
>>> up. Now, ordinarily, i wouldn't bother posting with something of this
>>> vague nature, however-- I can't pull up any codes. Not even a 55 will
>>> appear, so does that mean the computer brain is dead?
>>>
>>> The jeep was fine last night when I parked it, i filled up completely
>>> yesterday on gas...fuel pump? If it was something along those lines,
>>> wouldn't I still have at least a 55 appearing when i try for the
>>> codes?
>>>
>>> Any help would be appreciated,
>>>
>>> thanks
>>>
>>> Sandy
>>> phantom_milkie@yahoo.com
>>>
>> If the main ground for the body goes bad, the computer won't turn on.
>> On the older ones, this is a mesh strap from the rear of the engine head
>> to the firewall.
>>
>> There are more computer grounds on a bolt by the dipstick.
>>
>> Mike
>> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
>> 88 Cherokee 235 BFG AT's - Gone to the rust pile...
>> Canadian Off Road Trips Photos: Non members can still view!
>> Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
>> (More Off Road album links at bottom of the view page)
>
>
> The first thing I would suspect here is the crank position sensor. It
> will not always code. (it only codes if coil opens up not usually if
> the sensor is weak and not triggering right. When it is bad, you will
> not get any fire at all. Check it before you go on a wild goose chase
> like suggested above. If sensor is good then go to plan "B" the goose
> chase but the CPS's do go bad with age and can fail suddenly.
> -----------------
> TheSnoMan.com
So a failed CPS will prevent the computer from showing any codes eh.
Stalking Moron.
Mike
> On Sun, 10 Jun 2007 11:35:56 -0400, Mike Romain <romainm@sympatico.ca>
> wrote:
>
>> phantom_milkie@yahoo.com wrote:
>>> Hi,
>>>
>>> I have a 97 XJ that won't start, it turns over, but just won't fire
>>> up. Now, ordinarily, i wouldn't bother posting with something of this
>>> vague nature, however-- I can't pull up any codes. Not even a 55 will
>>> appear, so does that mean the computer brain is dead?
>>>
>>> The jeep was fine last night when I parked it, i filled up completely
>>> yesterday on gas...fuel pump? If it was something along those lines,
>>> wouldn't I still have at least a 55 appearing when i try for the
>>> codes?
>>>
>>> Any help would be appreciated,
>>>
>>> thanks
>>>
>>> Sandy
>>> phantom_milkie@yahoo.com
>>>
>> If the main ground for the body goes bad, the computer won't turn on.
>> On the older ones, this is a mesh strap from the rear of the engine head
>> to the firewall.
>>
>> There are more computer grounds on a bolt by the dipstick.
>>
>> Mike
>> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
>> 88 Cherokee 235 BFG AT's - Gone to the rust pile...
>> Canadian Off Road Trips Photos: Non members can still view!
>> Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
>> (More Off Road album links at bottom of the view page)
>
>
> The first thing I would suspect here is the crank position sensor. It
> will not always code. (it only codes if coil opens up not usually if
> the sensor is weak and not triggering right. When it is bad, you will
> not get any fire at all. Check it before you go on a wild goose chase
> like suggested above. If sensor is good then go to plan "B" the goose
> chase but the CPS's do go bad with age and can fail suddenly.
> -----------------
> TheSnoMan.com
So a failed CPS will prevent the computer from showing any codes eh.
Stalking Moron.
Mike
06-10-2007, 12:45 PM
#13
Guest
Posts: n/a
Re: '97 XJ won't start...and no codes
SnoMan wrote:
> On Sun, 10 Jun 2007 11:35:56 -0400, Mike Romain <romainm@sympatico.ca>
> wrote:
>
>> phantom_milkie@yahoo.com wrote:
>>> Hi,
>>>
>>> I have a 97 XJ that won't start, it turns over, but just won't fire
>>> up. Now, ordinarily, i wouldn't bother posting with something of this
>>> vague nature, however-- I can't pull up any codes. Not even a 55 will
>>> appear, so does that mean the computer brain is dead?
>>>
>>> The jeep was fine last night when I parked it, i filled up completely
>>> yesterday on gas...fuel pump? If it was something along those lines,
>>> wouldn't I still have at least a 55 appearing when i try for the
>>> codes?
>>>
>>> Any help would be appreciated,
>>>
>>> thanks
>>>
>>> Sandy
>>> phantom_milkie@yahoo.com
>>>
>> If the main ground for the body goes bad, the computer won't turn on.
>> On the older ones, this is a mesh strap from the rear of the engine head
>> to the firewall.
>>
>> There are more computer grounds on a bolt by the dipstick.
>>
>> Mike
>> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
>> 88 Cherokee 235 BFG AT's - Gone to the rust pile...
>> Canadian Off Road Trips Photos: Non members can still view!
>> Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
>> (More Off Road album links at bottom of the view page)
>
>
> The first thing I would suspect here is the crank position sensor. It
> will not always code. (it only codes if coil opens up not usually if
> the sensor is weak and not triggering right. When it is bad, you will
> not get any fire at all. Check it before you go on a wild goose chase
> like suggested above. If sensor is good then go to plan "B" the goose
> chase but the CPS's do go bad with age and can fail suddenly.
> -----------------
> TheSnoMan.com
So a failed CPS will prevent the computer from showing any codes eh.
Stalking Moron.
Mike
> On Sun, 10 Jun 2007 11:35:56 -0400, Mike Romain <romainm@sympatico.ca>
> wrote:
>
>> phantom_milkie@yahoo.com wrote:
>>> Hi,
>>>
>>> I have a 97 XJ that won't start, it turns over, but just won't fire
>>> up. Now, ordinarily, i wouldn't bother posting with something of this
>>> vague nature, however-- I can't pull up any codes. Not even a 55 will
>>> appear, so does that mean the computer brain is dead?
>>>
>>> The jeep was fine last night when I parked it, i filled up completely
>>> yesterday on gas...fuel pump? If it was something along those lines,
>>> wouldn't I still have at least a 55 appearing when i try for the
>>> codes?
>>>
>>> Any help would be appreciated,
>>>
>>> thanks
>>>
>>> Sandy
>>> phantom_milkie@yahoo.com
>>>
>> If the main ground for the body goes bad, the computer won't turn on.
>> On the older ones, this is a mesh strap from the rear of the engine head
>> to the firewall.
>>
>> There are more computer grounds on a bolt by the dipstick.
>>
>> Mike
>> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
>> 88 Cherokee 235 BFG AT's - Gone to the rust pile...
>> Canadian Off Road Trips Photos: Non members can still view!
>> Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
>> (More Off Road album links at bottom of the view page)
>
>
> The first thing I would suspect here is the crank position sensor. It
> will not always code. (it only codes if coil opens up not usually if
> the sensor is weak and not triggering right. When it is bad, you will
> not get any fire at all. Check it before you go on a wild goose chase
> like suggested above. If sensor is good then go to plan "B" the goose
> chase but the CPS's do go bad with age and can fail suddenly.
> -----------------
> TheSnoMan.com
So a failed CPS will prevent the computer from showing any codes eh.
Stalking Moron.
Mike
06-10-2007, 01:42 PM
#14
Guest
Posts: n/a
Re: Re: '97 XJ won't start...and no codes
On Sun, 10 Jun 2007 12:45:14 -0400, Mike Romain <romainm@sympatico.ca>
wrote:
>So a failed CPS will prevent the computer from showing any codes eh.
>
It can. There is a coil in it that if it opens it will show a failure
but if the magnetflux is weak in it to the point it will not send a
strong enough trigger pulse it may not code at all.
>Stalking Moron.
They do go bad (it is not rare at all) and do not always code and you
would know this if you were not the Moron here.
-----------------
TheSnoMan.com
wrote:
>So a failed CPS will prevent the computer from showing any codes eh.
>
It can. There is a coil in it that if it opens it will show a failure
but if the magnetflux is weak in it to the point it will not send a
strong enough trigger pulse it may not code at all.
>Stalking Moron.
They do go bad (it is not rare at all) and do not always code and you
would know this if you were not the Moron here.
-----------------
TheSnoMan.com
06-10-2007, 01:42 PM
#15
Guest
Posts: n/a
Re: Re: '97 XJ won't start...and no codes
On Sun, 10 Jun 2007 12:45:14 -0400, Mike Romain <romainm@sympatico.ca>
wrote:
>So a failed CPS will prevent the computer from showing any codes eh.
>
It can. There is a coil in it that if it opens it will show a failure
but if the magnetflux is weak in it to the point it will not send a
strong enough trigger pulse it may not code at all.
>Stalking Moron.
They do go bad (it is not rare at all) and do not always code and you
would know this if you were not the Moron here.
-----------------
TheSnoMan.com
wrote:
>So a failed CPS will prevent the computer from showing any codes eh.
>
It can. There is a coil in it that if it opens it will show a failure
but if the magnetflux is weak in it to the point it will not send a
strong enough trigger pulse it may not code at all.
>Stalking Moron.
They do go bad (it is not rare at all) and do not always code and you
would know this if you were not the Moron here.
-----------------
TheSnoMan.com
06-10-2007, 01:42 PM
#16
Guest
Posts: n/a
Re: Re: '97 XJ won't start...and no codes
On Sun, 10 Jun 2007 12:45:14 -0400, Mike Romain <romainm@sympatico.ca>
wrote:
>So a failed CPS will prevent the computer from showing any codes eh.
>
It can. There is a coil in it that if it opens it will show a failure
but if the magnetflux is weak in it to the point it will not send a
strong enough trigger pulse it may not code at all.
>Stalking Moron.
They do go bad (it is not rare at all) and do not always code and you
would know this if you were not the Moron here.
-----------------
TheSnoMan.com
wrote:
>So a failed CPS will prevent the computer from showing any codes eh.
>
It can. There is a coil in it that if it opens it will show a failure
but if the magnetflux is weak in it to the point it will not send a
strong enough trigger pulse it may not code at all.
>Stalking Moron.
They do go bad (it is not rare at all) and do not always code and you
would know this if you were not the Moron here.
-----------------
TheSnoMan.com
06-10-2007, 01:42 PM
#17
Guest
Posts: n/a
Re: Re: '97 XJ won't start...and no codes
On Sun, 10 Jun 2007 12:45:14 -0400, Mike Romain <romainm@sympatico.ca>
wrote:
>So a failed CPS will prevent the computer from showing any codes eh.
>
It can. There is a coil in it that if it opens it will show a failure
but if the magnetflux is weak in it to the point it will not send a
strong enough trigger pulse it may not code at all.
>Stalking Moron.
They do go bad (it is not rare at all) and do not always code and you
would know this if you were not the Moron here.
-----------------
TheSnoMan.com
wrote:
>So a failed CPS will prevent the computer from showing any codes eh.
>
It can. There is a coil in it that if it opens it will show a failure
but if the magnetflux is weak in it to the point it will not send a
strong enough trigger pulse it may not code at all.
>Stalking Moron.
They do go bad (it is not rare at all) and do not always code and you
would know this if you were not the Moron here.
-----------------
TheSnoMan.com
06-10-2007, 01:54 PM
#18
Guest
Posts: n/a
Re: '97 XJ won't start...and no codes
SnoMan wrote:
> On Sun, 10 Jun 2007 12:45:14 -0400, Mike Romain <romainm@sympatico.ca>
> wrote:
>
>> So a failed CPS will prevent the computer from showing any codes eh.
>>
>
> It can. There is a coil in it that if it opens it will show a failure
> but if the magnetflux is weak in it to the point it will not send a
> strong enough trigger pulse it may not code at all.
>
>> Stalking Moron.
>
> They do go bad (it is not rare at all) and do not always code and you
> would know this if you were not the Moron here.
> -----------------
> TheSnoMan.com
Illiterate too eh.
His symptoms that I addressed are the computer showing no codes, period!
If you had bothered to read the original post or even my reply instead
of stalking me you might have seen that.
Once again you have proven you have no clue in the world.
The CPS 'connection' is the part that normally goes bad for a die while
running and if you had ever touched a Jeep, you might know that.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's - Gone to the rust pile...
Canadian Off Road Trips Photos: Non members can still view!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
(More Off Road album links at bottom of the view page)
> On Sun, 10 Jun 2007 12:45:14 -0400, Mike Romain <romainm@sympatico.ca>
> wrote:
>
>> So a failed CPS will prevent the computer from showing any codes eh.
>>
>
> It can. There is a coil in it that if it opens it will show a failure
> but if the magnetflux is weak in it to the point it will not send a
> strong enough trigger pulse it may not code at all.
>
>> Stalking Moron.
>
> They do go bad (it is not rare at all) and do not always code and you
> would know this if you were not the Moron here.
> -----------------
> TheSnoMan.com
Illiterate too eh.
His symptoms that I addressed are the computer showing no codes, period!
If you had bothered to read the original post or even my reply instead
of stalking me you might have seen that.
Once again you have proven you have no clue in the world.
The CPS 'connection' is the part that normally goes bad for a die while
running and if you had ever touched a Jeep, you might know that.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's - Gone to the rust pile...
Canadian Off Road Trips Photos: Non members can still view!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
(More Off Road album links at bottom of the view page)
06-10-2007, 01:54 PM
#19
Guest
Posts: n/a
Re: '97 XJ won't start...and no codes
SnoMan wrote:
> On Sun, 10 Jun 2007 12:45:14 -0400, Mike Romain <romainm@sympatico.ca>
> wrote:
>
>> So a failed CPS will prevent the computer from showing any codes eh.
>>
>
> It can. There is a coil in it that if it opens it will show a failure
> but if the magnetflux is weak in it to the point it will not send a
> strong enough trigger pulse it may not code at all.
>
>> Stalking Moron.
>
> They do go bad (it is not rare at all) and do not always code and you
> would know this if you were not the Moron here.
> -----------------
> TheSnoMan.com
Illiterate too eh.
His symptoms that I addressed are the computer showing no codes, period!
If you had bothered to read the original post or even my reply instead
of stalking me you might have seen that.
Once again you have proven you have no clue in the world.
The CPS 'connection' is the part that normally goes bad for a die while
running and if you had ever touched a Jeep, you might know that.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's - Gone to the rust pile...
Canadian Off Road Trips Photos: Non members can still view!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
(More Off Road album links at bottom of the view page)
> On Sun, 10 Jun 2007 12:45:14 -0400, Mike Romain <romainm@sympatico.ca>
> wrote:
>
>> So a failed CPS will prevent the computer from showing any codes eh.
>>
>
> It can. There is a coil in it that if it opens it will show a failure
> but if the magnetflux is weak in it to the point it will not send a
> strong enough trigger pulse it may not code at all.
>
>> Stalking Moron.
>
> They do go bad (it is not rare at all) and do not always code and you
> would know this if you were not the Moron here.
> -----------------
> TheSnoMan.com
Illiterate too eh.
His symptoms that I addressed are the computer showing no codes, period!
If you had bothered to read the original post or even my reply instead
of stalking me you might have seen that.
Once again you have proven you have no clue in the world.
The CPS 'connection' is the part that normally goes bad for a die while
running and if you had ever touched a Jeep, you might know that.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's - Gone to the rust pile...
Canadian Off Road Trips Photos: Non members can still view!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
(More Off Road album links at bottom of the view page)
06-10-2007, 01:54 PM
#20
Guest
Posts: n/a
Re: '97 XJ won't start...and no codes
SnoMan wrote:
> On Sun, 10 Jun 2007 12:45:14 -0400, Mike Romain <romainm@sympatico.ca>
> wrote:
>
>> So a failed CPS will prevent the computer from showing any codes eh.
>>
>
> It can. There is a coil in it that if it opens it will show a failure
> but if the magnetflux is weak in it to the point it will not send a
> strong enough trigger pulse it may not code at all.
>
>> Stalking Moron.
>
> They do go bad (it is not rare at all) and do not always code and you
> would know this if you were not the Moron here.
> -----------------
> TheSnoMan.com
Illiterate too eh.
His symptoms that I addressed are the computer showing no codes, period!
If you had bothered to read the original post or even my reply instead
of stalking me you might have seen that.
Once again you have proven you have no clue in the world.
The CPS 'connection' is the part that normally goes bad for a die while
running and if you had ever touched a Jeep, you might know that.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's - Gone to the rust pile...
Canadian Off Road Trips Photos: Non members can still view!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
(More Off Road album links at bottom of the view page)
> On Sun, 10 Jun 2007 12:45:14 -0400, Mike Romain <romainm@sympatico.ca>
> wrote:
>
>> So a failed CPS will prevent the computer from showing any codes eh.
>>
>
> It can. There is a coil in it that if it opens it will show a failure
> but if the magnetflux is weak in it to the point it will not send a
> strong enough trigger pulse it may not code at all.
>
>> Stalking Moron.
>
> They do go bad (it is not rare at all) and do not always code and you
> would know this if you were not the Moron here.
> -----------------
> TheSnoMan.com
Illiterate too eh.
His symptoms that I addressed are the computer showing no codes, period!
If you had bothered to read the original post or even my reply instead
of stalking me you might have seen that.
Once again you have proven you have no clue in the world.
The CPS 'connection' is the part that normally goes bad for a die while
running and if you had ever touched a Jeep, you might know that.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's - Gone to the rust pile...
Canadian Off Road Trips Photos: Non members can still view!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
(More Off Road album links at bottom of the view page)