'93 GCherokee 6 Hard Start
Guest
Posts: n/a
Re: '93 GCherokee 6 Hard Start
1. Auto Shutdown Relay (ASR) provides power to fuel pump, coil, fuel
injectors, and O2 sensor heaters. If you have fuel pressure, don't worry
about the ASR.
2. If PCM does not sense input from the crankshaft position sensor, PCM will
deactivate Automatic Shutdown (ASD) and fuel pump relay, interrupting
voltage to fuel pump, fuel injectors, and ignition coil, (no start
condition).
3. For what it is worth.... I have seen several different makes of vehicles
exhibit a condition of no start when humid or cold, and it was caused by
secondary ignition components (spark plug wires most common). When there is
high humidity and you have substandard ignition parts, the path to ground
becomes much more convenient via a cracked wire or cracked coil due to the
extra conductivity of the air.
Go and check that CPS on the HZ range or the AC volts range, and see if
anything is going on with it. You can condemn it before digging it out.
Jerry
"D" <dpfer@r.com> wrote in message
news:FVnJb.4898$VV4.667@twister.rdc-kc.rr.com...
> Heh, thanks Matt.
> Lord knows I've never come across 'reluctor' before.
> Oh well, I'm about to give up on this old gal for the night. I can't evern
> interpret a digital VOM now.
>
> "Matt Osborn" <msosborn@spam_trap@attglobal.net> wrote in message
> news:odvbvvg907d3n1dvr6etridnktqpq3e2gh@4ax.com...
> > On Fri, 2 Jan 2004 15:14:16 -0600, "D" <dpfer@r.com> wrote:
> >
> > >Doug,
> > >Yes, I took off the cap, rotor and the two bolts, then lifted out the
> 'base'
> > >as you say. I called it the plate/cover.
> > >The stator is in place and appears ok.
> > >Now, around the shaft itself, level with the stator pickups is another
> > >piece. It has 5 (yes i just counted them) ridges or high points on it.
> This
> > >piece rotates around the shaft quite freely. I had assumed it to have 6
> > >'ridges' and thought it might have something to do with the reference
> > >signal. I called it a 'reluctor' as it closely resembles this part:
> >
>
>http://www2.autozone.com/servlet/UiB...en_us/0900823d
> /80/04/d0/5d/0900823d8004d05d.jsp
> > >and they refer to it as that. Anyway, it rotates independent of the
> shaft.
> > >Beautiful day today and I'm about to lose it. The old girl at least
gave
> a
> > >huff or two on bad says. Today it gives no sign of wanting to start.
> > >Thanks again Doug. Great page to add to your site by the way too.
> > >Denny
> > >
> >
> > I'm not a mechanic and I've never seen a reluctor before but common
> > sense tells me to agree with you. The reluctor should be fixed to the
> > shaft.
>
>
injectors, and O2 sensor heaters. If you have fuel pressure, don't worry
about the ASR.
2. If PCM does not sense input from the crankshaft position sensor, PCM will
deactivate Automatic Shutdown (ASD) and fuel pump relay, interrupting
voltage to fuel pump, fuel injectors, and ignition coil, (no start
condition).
3. For what it is worth.... I have seen several different makes of vehicles
exhibit a condition of no start when humid or cold, and it was caused by
secondary ignition components (spark plug wires most common). When there is
high humidity and you have substandard ignition parts, the path to ground
becomes much more convenient via a cracked wire or cracked coil due to the
extra conductivity of the air.
Go and check that CPS on the HZ range or the AC volts range, and see if
anything is going on with it. You can condemn it before digging it out.
Jerry
"D" <dpfer@r.com> wrote in message
news:FVnJb.4898$VV4.667@twister.rdc-kc.rr.com...
> Heh, thanks Matt.
> Lord knows I've never come across 'reluctor' before.
> Oh well, I'm about to give up on this old gal for the night. I can't evern
> interpret a digital VOM now.
>
> "Matt Osborn" <msosborn@spam_trap@attglobal.net> wrote in message
> news:odvbvvg907d3n1dvr6etridnktqpq3e2gh@4ax.com...
> > On Fri, 2 Jan 2004 15:14:16 -0600, "D" <dpfer@r.com> wrote:
> >
> > >Doug,
> > >Yes, I took off the cap, rotor and the two bolts, then lifted out the
> 'base'
> > >as you say. I called it the plate/cover.
> > >The stator is in place and appears ok.
> > >Now, around the shaft itself, level with the stator pickups is another
> > >piece. It has 5 (yes i just counted them) ridges or high points on it.
> This
> > >piece rotates around the shaft quite freely. I had assumed it to have 6
> > >'ridges' and thought it might have something to do with the reference
> > >signal. I called it a 'reluctor' as it closely resembles this part:
> >
>
>http://www2.autozone.com/servlet/UiB...en_us/0900823d
> /80/04/d0/5d/0900823d8004d05d.jsp
> > >and they refer to it as that. Anyway, it rotates independent of the
> shaft.
> > >Beautiful day today and I'm about to lose it. The old girl at least
gave
> a
> > >huff or two on bad says. Today it gives no sign of wanting to start.
> > >Thanks again Doug. Great page to add to your site by the way too.
> > >Denny
> > >
> >
> > I'm not a mechanic and I've never seen a reluctor before but common
> > sense tells me to agree with you. The reluctor should be fixed to the
> > shaft.
>
>
Guest
Posts: n/a
Re: '93 GCherokee 6 Hard Start
1. Auto Shutdown Relay (ASR) provides power to fuel pump, coil, fuel
injectors, and O2 sensor heaters. If you have fuel pressure, don't worry
about the ASR.
2. If PCM does not sense input from the crankshaft position sensor, PCM will
deactivate Automatic Shutdown (ASD) and fuel pump relay, interrupting
voltage to fuel pump, fuel injectors, and ignition coil, (no start
condition).
3. For what it is worth.... I have seen several different makes of vehicles
exhibit a condition of no start when humid or cold, and it was caused by
secondary ignition components (spark plug wires most common). When there is
high humidity and you have substandard ignition parts, the path to ground
becomes much more convenient via a cracked wire or cracked coil due to the
extra conductivity of the air.
Go and check that CPS on the HZ range or the AC volts range, and see if
anything is going on with it. You can condemn it before digging it out.
Jerry
"D" <dpfer@r.com> wrote in message
news:FVnJb.4898$VV4.667@twister.rdc-kc.rr.com...
> Heh, thanks Matt.
> Lord knows I've never come across 'reluctor' before.
> Oh well, I'm about to give up on this old gal for the night. I can't evern
> interpret a digital VOM now.
>
> "Matt Osborn" <msosborn@spam_trap@attglobal.net> wrote in message
> news:odvbvvg907d3n1dvr6etridnktqpq3e2gh@4ax.com...
> > On Fri, 2 Jan 2004 15:14:16 -0600, "D" <dpfer@r.com> wrote:
> >
> > >Doug,
> > >Yes, I took off the cap, rotor and the two bolts, then lifted out the
> 'base'
> > >as you say. I called it the plate/cover.
> > >The stator is in place and appears ok.
> > >Now, around the shaft itself, level with the stator pickups is another
> > >piece. It has 5 (yes i just counted them) ridges or high points on it.
> This
> > >piece rotates around the shaft quite freely. I had assumed it to have 6
> > >'ridges' and thought it might have something to do with the reference
> > >signal. I called it a 'reluctor' as it closely resembles this part:
> >
>
>http://www2.autozone.com/servlet/UiB...en_us/0900823d
> /80/04/d0/5d/0900823d8004d05d.jsp
> > >and they refer to it as that. Anyway, it rotates independent of the
> shaft.
> > >Beautiful day today and I'm about to lose it. The old girl at least
gave
> a
> > >huff or two on bad says. Today it gives no sign of wanting to start.
> > >Thanks again Doug. Great page to add to your site by the way too.
> > >Denny
> > >
> >
> > I'm not a mechanic and I've never seen a reluctor before but common
> > sense tells me to agree with you. The reluctor should be fixed to the
> > shaft.
>
>
injectors, and O2 sensor heaters. If you have fuel pressure, don't worry
about the ASR.
2. If PCM does not sense input from the crankshaft position sensor, PCM will
deactivate Automatic Shutdown (ASD) and fuel pump relay, interrupting
voltage to fuel pump, fuel injectors, and ignition coil, (no start
condition).
3. For what it is worth.... I have seen several different makes of vehicles
exhibit a condition of no start when humid or cold, and it was caused by
secondary ignition components (spark plug wires most common). When there is
high humidity and you have substandard ignition parts, the path to ground
becomes much more convenient via a cracked wire or cracked coil due to the
extra conductivity of the air.
Go and check that CPS on the HZ range or the AC volts range, and see if
anything is going on with it. You can condemn it before digging it out.
Jerry
"D" <dpfer@r.com> wrote in message
news:FVnJb.4898$VV4.667@twister.rdc-kc.rr.com...
> Heh, thanks Matt.
> Lord knows I've never come across 'reluctor' before.
> Oh well, I'm about to give up on this old gal for the night. I can't evern
> interpret a digital VOM now.
>
> "Matt Osborn" <msosborn@spam_trap@attglobal.net> wrote in message
> news:odvbvvg907d3n1dvr6etridnktqpq3e2gh@4ax.com...
> > On Fri, 2 Jan 2004 15:14:16 -0600, "D" <dpfer@r.com> wrote:
> >
> > >Doug,
> > >Yes, I took off the cap, rotor and the two bolts, then lifted out the
> 'base'
> > >as you say. I called it the plate/cover.
> > >The stator is in place and appears ok.
> > >Now, around the shaft itself, level with the stator pickups is another
> > >piece. It has 5 (yes i just counted them) ridges or high points on it.
> This
> > >piece rotates around the shaft quite freely. I had assumed it to have 6
> > >'ridges' and thought it might have something to do with the reference
> > >signal. I called it a 'reluctor' as it closely resembles this part:
> >
>
>http://www2.autozone.com/servlet/UiB...en_us/0900823d
> /80/04/d0/5d/0900823d8004d05d.jsp
> > >and they refer to it as that. Anyway, it rotates independent of the
> shaft.
> > >Beautiful day today and I'm about to lose it. The old girl at least
gave
> a
> > >huff or two on bad says. Today it gives no sign of wanting to start.
> > >Thanks again Doug. Great page to add to your site by the way too.
> > >Denny
> > >
> >
> > I'm not a mechanic and I've never seen a reluctor before but common
> > sense tells me to agree with you. The reluctor should be fixed to the
> > shaft.
>
>
Guest
Posts: n/a
Re: '93 GCherokee 6 Hard Start
1. Auto Shutdown Relay (ASR) provides power to fuel pump, coil, fuel
injectors, and O2 sensor heaters. If you have fuel pressure, don't worry
about the ASR.
2. If PCM does not sense input from the crankshaft position sensor, PCM will
deactivate Automatic Shutdown (ASD) and fuel pump relay, interrupting
voltage to fuel pump, fuel injectors, and ignition coil, (no start
condition).
3. For what it is worth.... I have seen several different makes of vehicles
exhibit a condition of no start when humid or cold, and it was caused by
secondary ignition components (spark plug wires most common). When there is
high humidity and you have substandard ignition parts, the path to ground
becomes much more convenient via a cracked wire or cracked coil due to the
extra conductivity of the air.
Go and check that CPS on the HZ range or the AC volts range, and see if
anything is going on with it. You can condemn it before digging it out.
Jerry
"D" <dpfer@r.com> wrote in message
news:FVnJb.4898$VV4.667@twister.rdc-kc.rr.com...
> Heh, thanks Matt.
> Lord knows I've never come across 'reluctor' before.
> Oh well, I'm about to give up on this old gal for the night. I can't evern
> interpret a digital VOM now.
>
> "Matt Osborn" <msosborn@spam_trap@attglobal.net> wrote in message
> news:odvbvvg907d3n1dvr6etridnktqpq3e2gh@4ax.com...
> > On Fri, 2 Jan 2004 15:14:16 -0600, "D" <dpfer@r.com> wrote:
> >
> > >Doug,
> > >Yes, I took off the cap, rotor and the two bolts, then lifted out the
> 'base'
> > >as you say. I called it the plate/cover.
> > >The stator is in place and appears ok.
> > >Now, around the shaft itself, level with the stator pickups is another
> > >piece. It has 5 (yes i just counted them) ridges or high points on it.
> This
> > >piece rotates around the shaft quite freely. I had assumed it to have 6
> > >'ridges' and thought it might have something to do with the reference
> > >signal. I called it a 'reluctor' as it closely resembles this part:
> >
>
>http://www2.autozone.com/servlet/UiB...en_us/0900823d
> /80/04/d0/5d/0900823d8004d05d.jsp
> > >and they refer to it as that. Anyway, it rotates independent of the
> shaft.
> > >Beautiful day today and I'm about to lose it. The old girl at least
gave
> a
> > >huff or two on bad says. Today it gives no sign of wanting to start.
> > >Thanks again Doug. Great page to add to your site by the way too.
> > >Denny
> > >
> >
> > I'm not a mechanic and I've never seen a reluctor before but common
> > sense tells me to agree with you. The reluctor should be fixed to the
> > shaft.
>
>
injectors, and O2 sensor heaters. If you have fuel pressure, don't worry
about the ASR.
2. If PCM does not sense input from the crankshaft position sensor, PCM will
deactivate Automatic Shutdown (ASD) and fuel pump relay, interrupting
voltage to fuel pump, fuel injectors, and ignition coil, (no start
condition).
3. For what it is worth.... I have seen several different makes of vehicles
exhibit a condition of no start when humid or cold, and it was caused by
secondary ignition components (spark plug wires most common). When there is
high humidity and you have substandard ignition parts, the path to ground
becomes much more convenient via a cracked wire or cracked coil due to the
extra conductivity of the air.
Go and check that CPS on the HZ range or the AC volts range, and see if
anything is going on with it. You can condemn it before digging it out.
Jerry
"D" <dpfer@r.com> wrote in message
news:FVnJb.4898$VV4.667@twister.rdc-kc.rr.com...
> Heh, thanks Matt.
> Lord knows I've never come across 'reluctor' before.
> Oh well, I'm about to give up on this old gal for the night. I can't evern
> interpret a digital VOM now.
>
> "Matt Osborn" <msosborn@spam_trap@attglobal.net> wrote in message
> news:odvbvvg907d3n1dvr6etridnktqpq3e2gh@4ax.com...
> > On Fri, 2 Jan 2004 15:14:16 -0600, "D" <dpfer@r.com> wrote:
> >
> > >Doug,
> > >Yes, I took off the cap, rotor and the two bolts, then lifted out the
> 'base'
> > >as you say. I called it the plate/cover.
> > >The stator is in place and appears ok.
> > >Now, around the shaft itself, level with the stator pickups is another
> > >piece. It has 5 (yes i just counted them) ridges or high points on it.
> This
> > >piece rotates around the shaft quite freely. I had assumed it to have 6
> > >'ridges' and thought it might have something to do with the reference
> > >signal. I called it a 'reluctor' as it closely resembles this part:
> >
>
>http://www2.autozone.com/servlet/UiB...en_us/0900823d
> /80/04/d0/5d/0900823d8004d05d.jsp
> > >and they refer to it as that. Anyway, it rotates independent of the
> shaft.
> > >Beautiful day today and I'm about to lose it. The old girl at least
gave
> a
> > >huff or two on bad says. Today it gives no sign of wanting to start.
> > >Thanks again Doug. Great page to add to your site by the way too.
> > >Denny
> > >
> >
> > I'm not a mechanic and I've never seen a reluctor before but common
> > sense tells me to agree with you. The reluctor should be fixed to the
> > shaft.
>
>
Guest
Posts: n/a
Re: '93 GCherokee 6 Hard Start
On Fri, 2 Jan 2004 16:39:53 -0600, "D" <dpfer@r.com> wrote:
>Thanks Bill,
>I do have good fuel pressure. Just was hoping there was some absolute test I
>could do on the CPS before digging down to change it.
The service manual states to test the CPS with the DRB II diagnostic
scan tool. Lacking that, the quick and dirty test is to place an
ohmmeter across terminals B and C. Near the rear of the intake
manifold, disconnect sensor pigtail harness connector from main wiring
harness. Looking into the CPS connector, with the clip up, you will
see a notch on the right side. In that position, the terminals read
A, B, C left to right. Ohmmeter should be set to 1K-to-10K scale for
this test. The meter reading should be open (no resistance). Replace
sensor if a low resistance is indicated. All taken from the official
1993 Service Manual for the Jeep Grand Cherokee.
----
>Thanks Bill,
>I do have good fuel pressure. Just was hoping there was some absolute test I
>could do on the CPS before digging down to change it.
The service manual states to test the CPS with the DRB II diagnostic
scan tool. Lacking that, the quick and dirty test is to place an
ohmmeter across terminals B and C. Near the rear of the intake
manifold, disconnect sensor pigtail harness connector from main wiring
harness. Looking into the CPS connector, with the clip up, you will
see a notch on the right side. In that position, the terminals read
A, B, C left to right. Ohmmeter should be set to 1K-to-10K scale for
this test. The meter reading should be open (no resistance). Replace
sensor if a low resistance is indicated. All taken from the official
1993 Service Manual for the Jeep Grand Cherokee.
----
Guest
Posts: n/a
Re: '93 GCherokee 6 Hard Start
On Fri, 2 Jan 2004 16:39:53 -0600, "D" <dpfer@r.com> wrote:
>Thanks Bill,
>I do have good fuel pressure. Just was hoping there was some absolute test I
>could do on the CPS before digging down to change it.
The service manual states to test the CPS with the DRB II diagnostic
scan tool. Lacking that, the quick and dirty test is to place an
ohmmeter across terminals B and C. Near the rear of the intake
manifold, disconnect sensor pigtail harness connector from main wiring
harness. Looking into the CPS connector, with the clip up, you will
see a notch on the right side. In that position, the terminals read
A, B, C left to right. Ohmmeter should be set to 1K-to-10K scale for
this test. The meter reading should be open (no resistance). Replace
sensor if a low resistance is indicated. All taken from the official
1993 Service Manual for the Jeep Grand Cherokee.
----
>Thanks Bill,
>I do have good fuel pressure. Just was hoping there was some absolute test I
>could do on the CPS before digging down to change it.
The service manual states to test the CPS with the DRB II diagnostic
scan tool. Lacking that, the quick and dirty test is to place an
ohmmeter across terminals B and C. Near the rear of the intake
manifold, disconnect sensor pigtail harness connector from main wiring
harness. Looking into the CPS connector, with the clip up, you will
see a notch on the right side. In that position, the terminals read
A, B, C left to right. Ohmmeter should be set to 1K-to-10K scale for
this test. The meter reading should be open (no resistance). Replace
sensor if a low resistance is indicated. All taken from the official
1993 Service Manual for the Jeep Grand Cherokee.
----
Guest
Posts: n/a
Re: '93 GCherokee 6 Hard Start
On Fri, 2 Jan 2004 16:39:53 -0600, "D" <dpfer@r.com> wrote:
>Thanks Bill,
>I do have good fuel pressure. Just was hoping there was some absolute test I
>could do on the CPS before digging down to change it.
The service manual states to test the CPS with the DRB II diagnostic
scan tool. Lacking that, the quick and dirty test is to place an
ohmmeter across terminals B and C. Near the rear of the intake
manifold, disconnect sensor pigtail harness connector from main wiring
harness. Looking into the CPS connector, with the clip up, you will
see a notch on the right side. In that position, the terminals read
A, B, C left to right. Ohmmeter should be set to 1K-to-10K scale for
this test. The meter reading should be open (no resistance). Replace
sensor if a low resistance is indicated. All taken from the official
1993 Service Manual for the Jeep Grand Cherokee.
----
>Thanks Bill,
>I do have good fuel pressure. Just was hoping there was some absolute test I
>could do on the CPS before digging down to change it.
The service manual states to test the CPS with the DRB II diagnostic
scan tool. Lacking that, the quick and dirty test is to place an
ohmmeter across terminals B and C. Near the rear of the intake
manifold, disconnect sensor pigtail harness connector from main wiring
harness. Looking into the CPS connector, with the clip up, you will
see a notch on the right side. In that position, the terminals read
A, B, C left to right. Ohmmeter should be set to 1K-to-10K scale for
this test. The meter reading should be open (no resistance). Replace
sensor if a low resistance is indicated. All taken from the official
1993 Service Manual for the Jeep Grand Cherokee.
----
Guest
Posts: n/a
Re: '93 GCherokee 6 Hard Start
"Jerry Newton" <figatmcttelecom.com> wrote in message
news:3ff6192d_2@newspeer2.tds.net...
> Since you are swinging the leads of that DVOM around, find a convenient
> place to tap into the CPS circuit, and see if you are getting anything .
If
> your DVOM has HZ capability, you should pick up some reading while
cranking.
> The exact reading isn't important, just that there is something going
on...
No fancy DVOM is needed, all that's needed is a plain old analog VOM that
can read low AC voltages, and most do.
Jerry
--
Jerry Bransford
To email, remove 'me' from my email address
KC6TAY, PP-ASEL
See the Geezer Jeep at
http://members.***.net/jerrypb/
Guest
Posts: n/a
Re: '93 GCherokee 6 Hard Start
"Jerry Newton" <figatmcttelecom.com> wrote in message
news:3ff6192d_2@newspeer2.tds.net...
> Since you are swinging the leads of that DVOM around, find a convenient
> place to tap into the CPS circuit, and see if you are getting anything .
If
> your DVOM has HZ capability, you should pick up some reading while
cranking.
> The exact reading isn't important, just that there is something going
on...
No fancy DVOM is needed, all that's needed is a plain old analog VOM that
can read low AC voltages, and most do.
Jerry
--
Jerry Bransford
To email, remove 'me' from my email address
KC6TAY, PP-ASEL
See the Geezer Jeep at
http://members.***.net/jerrypb/
Guest
Posts: n/a
Re: '93 GCherokee 6 Hard Start
"Jerry Newton" <figatmcttelecom.com> wrote in message
news:3ff6192d_2@newspeer2.tds.net...
> Since you are swinging the leads of that DVOM around, find a convenient
> place to tap into the CPS circuit, and see if you are getting anything .
If
> your DVOM has HZ capability, you should pick up some reading while
cranking.
> The exact reading isn't important, just that there is something going
on...
No fancy DVOM is needed, all that's needed is a plain old analog VOM that
can read low AC voltages, and most do.
Jerry
--
Jerry Bransford
To email, remove 'me' from my email address
KC6TAY, PP-ASEL
See the Geezer Jeep at
http://members.***.net/jerrypb/
Guest
Posts: n/a
Re: '93 GCherokee 6 Hard Start
Great information Jerry. Thanks for both of your posts.
I'm getting excited to go out and work on her in the morning again.
I made some comments below.
"Jerry Newton" <figatmcttelecom.com> wrote in message
news:3ff61c3d_1@newspeer2.tds.net...
> 1. Auto Shutdown Relay (ASR) provides power to fuel pump, coil, fuel
> injectors, and O2 sensor heaters. If you have fuel pressure, don't worry
> about the ASR.
I do have good fuel pressure. There's the ASR eliminated. Great!
>
> 2. If PCM does not sense input from the crankshaft position sensor, PCM
will
> deactivate Automatic Shutdown (ASD) and fuel pump relay, interrupting
> voltage to fuel pump, fuel injectors, and ignition coil, (no start
> condition).
Since I do get good fuel pressure, and I will check it again in the morning,
this tells me the PCM is hearing from the CPS then.
>
> 3. For what it is worth.... I have seen several different makes of
vehicles
> exhibit a condition of no start when humid or cold, and it was caused by
> secondary ignition components (spark plug wires most common). When there
is
> high humidity and you have substandard ignition parts, the path to ground
> becomes much more convenient via a cracked wire or cracked coil due to the
> extra conductivity of the air.
If you've missed the whole thread, this no start problem has been steadily
getting worse over the last month when it started to get colder. Does that
info sway your thoughts in any way?
At about 60K miles, the car died in the road with no warning. Turned out to
be the coil. Will a coil gradually degrade to cause starting problems but
run well once started?
>
> Go and check that CPS on the HZ range or the AC volts range, and see if
> anything is going on with it. You can condemn it before digging it out.
>
> Jerry
>
>
>
>
> "D" <dpfer@r.com> wrote in message
> news:FVnJb.4898$VV4.667@twister.rdc-kc.rr.com...
> > Heh, thanks Matt.
> > Lord knows I've never come across 'reluctor' before.
> > Oh well, I'm about to give up on this old gal for the night. I can't
evern
> > interpret a digital VOM now.
> >
> > "Matt Osborn" <msosborn@spam_trap@attglobal.net> wrote in message
> > news:odvbvvg907d3n1dvr6etridnktqpq3e2gh@4ax.com...
> > > On Fri, 2 Jan 2004 15:14:16 -0600, "D" <dpfer@r.com> wrote:
> > >
> > > >Doug,
> > > >Yes, I took off the cap, rotor and the two bolts, then lifted out the
> > 'base'
> > > >as you say. I called it the plate/cover.
> > > >The stator is in place and appears ok.
> > > >Now, around the shaft itself, level with the stator pickups is
another
> > > >piece. It has 5 (yes i just counted them) ridges or high points on
it.
> > This
> > > >piece rotates around the shaft quite freely. I had assumed it to have
6
> > > >'ridges' and thought it might have something to do with the reference
> > > >signal. I called it a 'reluctor' as it closely resembles this part:
> > >
> >
>
>http://www2.autozone.com/servlet/UiB...en_us/0900823d
> > /80/04/d0/5d/0900823d8004d05d.jsp
> > > >and they refer to it as that. Anyway, it rotates independent of the
> > shaft.
> > > >Beautiful day today and I'm about to lose it. The old girl at least
> gave
> > a
> > > >huff or two on bad says. Today it gives no sign of wanting to start.
> > > >Thanks again Doug. Great page to add to your site by the way too.
> > > >Denny
> > > >
> > >
> > > I'm not a mechanic and I've never seen a reluctor before but common
> > > sense tells me to agree with you. The reluctor should be fixed to the
> > > shaft.
> >
> >
>
>
I'm getting excited to go out and work on her in the morning again.
I made some comments below.
"Jerry Newton" <figatmcttelecom.com> wrote in message
news:3ff61c3d_1@newspeer2.tds.net...
> 1. Auto Shutdown Relay (ASR) provides power to fuel pump, coil, fuel
> injectors, and O2 sensor heaters. If you have fuel pressure, don't worry
> about the ASR.
I do have good fuel pressure. There's the ASR eliminated. Great!
>
> 2. If PCM does not sense input from the crankshaft position sensor, PCM
will
> deactivate Automatic Shutdown (ASD) and fuel pump relay, interrupting
> voltage to fuel pump, fuel injectors, and ignition coil, (no start
> condition).
Since I do get good fuel pressure, and I will check it again in the morning,
this tells me the PCM is hearing from the CPS then.
>
> 3. For what it is worth.... I have seen several different makes of
vehicles
> exhibit a condition of no start when humid or cold, and it was caused by
> secondary ignition components (spark plug wires most common). When there
is
> high humidity and you have substandard ignition parts, the path to ground
> becomes much more convenient via a cracked wire or cracked coil due to the
> extra conductivity of the air.
If you've missed the whole thread, this no start problem has been steadily
getting worse over the last month when it started to get colder. Does that
info sway your thoughts in any way?
At about 60K miles, the car died in the road with no warning. Turned out to
be the coil. Will a coil gradually degrade to cause starting problems but
run well once started?
>
> Go and check that CPS on the HZ range or the AC volts range, and see if
> anything is going on with it. You can condemn it before digging it out.
>
> Jerry
>
>
>
>
> "D" <dpfer@r.com> wrote in message
> news:FVnJb.4898$VV4.667@twister.rdc-kc.rr.com...
> > Heh, thanks Matt.
> > Lord knows I've never come across 'reluctor' before.
> > Oh well, I'm about to give up on this old gal for the night. I can't
evern
> > interpret a digital VOM now.
> >
> > "Matt Osborn" <msosborn@spam_trap@attglobal.net> wrote in message
> > news:odvbvvg907d3n1dvr6etridnktqpq3e2gh@4ax.com...
> > > On Fri, 2 Jan 2004 15:14:16 -0600, "D" <dpfer@r.com> wrote:
> > >
> > > >Doug,
> > > >Yes, I took off the cap, rotor and the two bolts, then lifted out the
> > 'base'
> > > >as you say. I called it the plate/cover.
> > > >The stator is in place and appears ok.
> > > >Now, around the shaft itself, level with the stator pickups is
another
> > > >piece. It has 5 (yes i just counted them) ridges or high points on
it.
> > This
> > > >piece rotates around the shaft quite freely. I had assumed it to have
6
> > > >'ridges' and thought it might have something to do with the reference
> > > >signal. I called it a 'reluctor' as it closely resembles this part:
> > >
> >
>
>http://www2.autozone.com/servlet/UiB...en_us/0900823d
> > /80/04/d0/5d/0900823d8004d05d.jsp
> > > >and they refer to it as that. Anyway, it rotates independent of the
> > shaft.
> > > >Beautiful day today and I'm about to lose it. The old girl at least
> gave
> > a
> > > >huff or two on bad says. Today it gives no sign of wanting to start.
> > > >Thanks again Doug. Great page to add to your site by the way too.
> > > >Denny
> > > >
> > >
> > > I'm not a mechanic and I've never seen a reluctor before but common
> > > sense tells me to agree with you. The reluctor should be fixed to the
> > > shaft.
> >
> >
>
>