Re: 93 Grand Cherokee-Won't Start in Cold
 

The Cherokee has a ballast resistor for the fuel pump too.

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

D wrote:
>
> Thanks Bill. I'll try that and see what I get. I have a few multi-meters
> around. If the voltage, 12v. is not there while cranking, does that indicate
> a bad ballast?
> It started up just now. Ran rough for a few seconds, then smoothed out like
> the beauty she is. I'm going to run around a few blocks and then see if I
> get any fault codes.
> Problem is still there. Will post after bit.
> Thanks for your insight.
> Denny
>
> "L.W. (ßill) ------ III" <----------@cox.net> wrote in message
> news:3FCFA14D.65551810@cox.net...
> > Buy yourself a ten dollar volt meter and connect it to the + side
> > of the coil, that will tell you exactly what's going on. You should have
> > a full twelve volts at cranking, then drop a couple after it starts. You
> > may have a resistor wire, rather than the white piece of porcelain,
> > ballast, attached to your firewall.
> > God Bless America, ßill O|||||||O
> > mailto:-------------------- http://www.----------.com/
> >
> > D wrote:
> > >
> > > Still the same problem, just spins a bit faster.
> > > Location of the ballast resister? I'll put the torch to it. j/k. I will
> try
> > > a lamp though.

Re: 93 Grand Cherokee-Won't Start in Cold
 

The Cherokee has a ballast resistor for the fuel pump too.

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

D wrote:
>
> Thanks Bill. I'll try that and see what I get. I have a few multi-meters
> around. If the voltage, 12v. is not there while cranking, does that indicate
> a bad ballast?
> It started up just now. Ran rough for a few seconds, then smoothed out like
> the beauty she is. I'm going to run around a few blocks and then see if I
> get any fault codes.
> Problem is still there. Will post after bit.
> Thanks for your insight.
> Denny
>
> "L.W. (ßill) ------ III" <----------@cox.net> wrote in message
> news:3FCFA14D.65551810@cox.net...
> > Buy yourself a ten dollar volt meter and connect it to the + side
> > of the coil, that will tell you exactly what's going on. You should have
> > a full twelve volts at cranking, then drop a couple after it starts. You
> > may have a resistor wire, rather than the white piece of porcelain,
> > ballast, attached to your firewall.
> > God Bless America, ßill O|||||||O
> > mailto:-------------------- http://www.----------.com/
> >
> > D wrote:
> > >
> > > Still the same problem, just spins a bit faster.
> > > Location of the ballast resister? I'll put the torch to it. j/k. I will
> try
> > > a lamp though.

Re: 93 Grand Cherokee-Won't Start in Cold
 

Hi Dennis,
The twelve volts during cranking, just mean the solenoid's bypass
is working properly.
I'd give it the normal tune-up, plugs, wires, cap, and rotor,
seeing you eluded to a misfire.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

D wrote:
>
> Thanks Bill. I'll try that and see what I get. I have a few multi-meters
> around. If the voltage, 12v. is not there while cranking, does that indicate
> a bad ballast?
> It started up just now. Ran rough for a few seconds, then smoothed out like
> the beauty she is. I'm going to run around a few blocks and then see if I
> get any fault codes.
> Problem is still there. Will post after bit.
> Thanks for your insight.
> Denny

Re: 93 Grand Cherokee-Won't Start in Cold
 

Hi Dennis,
The twelve volts during cranking, just mean the solenoid's bypass
is working properly.
I'd give it the normal tune-up, plugs, wires, cap, and rotor,
seeing you eluded to a misfire.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

D wrote:
>
> Thanks Bill. I'll try that and see what I get. I have a few multi-meters
> around. If the voltage, 12v. is not there while cranking, does that indicate
> a bad ballast?
> It started up just now. Ran rough for a few seconds, then smoothed out like
> the beauty she is. I'm going to run around a few blocks and then see if I
> get any fault codes.
> Problem is still there. Will post after bit.
> Thanks for your insight.
> Denny

Re: 93 Grand Cherokee-Won't Start in Cold
 

Hi Dennis,
The twelve volts during cranking, just mean the solenoid's bypass
is working properly.
I'd give it the normal tune-up, plugs, wires, cap, and rotor,
seeing you eluded to a misfire.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

D wrote:
>
> Thanks Bill. I'll try that and see what I get. I have a few multi-meters
> around. If the voltage, 12v. is not there while cranking, does that indicate
> a bad ballast?
> It started up just now. Ran rough for a few seconds, then smoothed out like
> the beauty she is. I'm going to run around a few blocks and then see if I
> get any fault codes.
> Problem is still there. Will post after bit.
> Thanks for your insight.
> Denny

Re: 93 Grand Cherokee-Won't Start in Cold
 

"D" <dpfer@r.com> wrote in message news:OxKzb.105969$Eq1.40720@twister.rdc-kc.rr.com...
Hi all.

<side note, html is icky> :)

Going to go through a few ideas.

Ignition issues including misses at speed.
Bad sparkplug
bured out wire
cracked cap
burned through rotor
Worn out distributor. (can you move the rotor from side to side or
is there a lot of oil in the bottom of the distributor)
If yes, you need a new distributor.
http://members.cox.net/wilsond/distributor/

I'm almost betting your rotor has burned a hole in it and
the spark is going through the distributor to ground.

More things to check.

Does the fuel pump turn on when the ignition key goes to run?
Is the fuel rail pressure up to 32psi?
(an R-12 gauge works well to test pressure)
http://members.cox.net/wilsond/Fixes...-test-port.jpg

Have you cleaned the Idle Air Passage in the TB?
(usually associated with rough idle though)
http://members.cox.net/wilsond/tb/tb.html

ESD relay (emergency shutdown relay) gone bad. This will
prevent a start, but it also prevents the fuel pump from
cycling. (Relay center behind the battery)


The diagnositcs page on my site might help.
Gotta run.


--
-- DougW -- 93 ZJ 4.0 http://members.cox.net/wilsond
HESCO Supercharger - 300W IASCA Stereo - Edelbrock IAS Shocks
Gibson Exhaust - rear DCpower - custom gauge install - Stillen Rotors

Re: 93 Grand Cherokee-Won't Start in Cold
 

"D" <dpfer@r.com> wrote in message news:OxKzb.105969$Eq1.40720@twister.rdc-kc.rr.com...
Hi all.

<side note, html is icky> :)

Going to go through a few ideas.

Ignition issues including misses at speed.
Bad sparkplug
bured out wire
cracked cap
burned through rotor
Worn out distributor. (can you move the rotor from side to side or
is there a lot of oil in the bottom of the distributor)
If yes, you need a new distributor.
http://members.cox.net/wilsond/distributor/

I'm almost betting your rotor has burned a hole in it and
the spark is going through the distributor to ground.

More things to check.

Does the fuel pump turn on when the ignition key goes to run?
Is the fuel rail pressure up to 32psi?
(an R-12 gauge works well to test pressure)
http://members.cox.net/wilsond/Fixes...-test-port.jpg

Have you cleaned the Idle Air Passage in the TB?
(usually associated with rough idle though)
http://members.cox.net/wilsond/tb/tb.html

ESD relay (emergency shutdown relay) gone bad. This will
prevent a start, but it also prevents the fuel pump from
cycling. (Relay center behind the battery)


The diagnositcs page on my site might help.
Gotta run.


--
-- DougW -- 93 ZJ 4.0 http://members.cox.net/wilsond
HESCO Supercharger - 300W IASCA Stereo - Edelbrock IAS Shocks
Gibson Exhaust - rear DCpower - custom gauge install - Stillen Rotors

Re: 93 Grand Cherokee-Won't Start in Cold
 

"D" <dpfer@r.com> wrote in message news:OxKzb.105969$Eq1.40720@twister.rdc-kc.rr.com...
Hi all.

<side note, html is icky> :)

Going to go through a few ideas.

Ignition issues including misses at speed.
Bad sparkplug
bured out wire
cracked cap
burned through rotor
Worn out distributor. (can you move the rotor from side to side or
is there a lot of oil in the bottom of the distributor)
If yes, you need a new distributor.
http://members.cox.net/wilsond/distributor/

I'm almost betting your rotor has burned a hole in it and
the spark is going through the distributor to ground.

More things to check.

Does the fuel pump turn on when the ignition key goes to run?
Is the fuel rail pressure up to 32psi?
(an R-12 gauge works well to test pressure)
http://members.cox.net/wilsond/Fixes...-test-port.jpg

Have you cleaned the Idle Air Passage in the TB?
(usually associated with rough idle though)
http://members.cox.net/wilsond/tb/tb.html

ESD relay (emergency shutdown relay) gone bad. This will
prevent a start, but it also prevents the fuel pump from
cycling. (Relay center behind the battery)


The diagnositcs page on my site might help.
Gotta run.


--
-- DougW -- 93 ZJ 4.0 http://members.cox.net/wilsond
HESCO Supercharger - 300W IASCA Stereo - Edelbrock IAS Shocks
Gibson Exhaust - rear DCpower - custom gauge install - Stillen Rotors

Re: 93 Grand Cherokee-Won't Start in Cold
 

Doug,
Lot of great info and I really like your style on your Web site. I want a
supercharger now!
Going to check the distributer in the morning. If you missed it, I finally
got started up. I think through a combination of pumping the gas and holding
it to the floor. Started really rough but then almost immediately settled
down to smooth. Drove it, parked it, started it, did errands and honey-do's
and it had no problem.
I'll check fuel pressure. I have a couple R-12 gauges around here somewhere.
We'll see what happens in the morning.
Would the ESD relay behave this way as it's failing? You know, what with
cold weather starting problem I mean.
Thanks for all your help and access to a great site.
Denny
(side note, I picked text only now. Is it better? Sorry)

"DougW" <post.replies@invalid.address> wrote in message
news:wQPzb.24458$Gj2.8693@okepread01...
> "D" <dpfer@r.com> wrote in message
news:OxKzb.105969$Eq1.40720@twister.rdc-kc.rr.com...
> Hi all.
>
> <side note, html is icky> :)
>
> Going to go through a few ideas.
>
> Ignition issues including misses at speed.
> Bad sparkplug
> bured out wire
> cracked cap
> burned through rotor
> Worn out distributor. (can you move the rotor from side to side or
> is there a lot of oil in the bottom of the distributor)
> If yes, you need a new distributor.
> http://members.cox.net/wilsond/distributor/
>
> I'm almost betting your rotor has burned a hole in it and
> the spark is going through the distributor to ground.
>
> More things to check.
>
> Does the fuel pump turn on when the ignition key goes to run?
> Is the fuel rail pressure up to 32psi?
> (an R-12 gauge works well to test pressure)
> http://members.cox.net/wilsond/Fixes...-test-port.jpg
>
> Have you cleaned the Idle Air Passage in the TB?
> (usually associated with rough idle though)
> http://members.cox.net/wilsond/tb/tb.html
>
> ESD relay (emergency shutdown relay) gone bad. This will
> prevent a start, but it also prevents the fuel pump from
> cycling. (Relay center behind the battery)
>
>
> The diagnositcs page on my site might help.
> Gotta run.
>
>
> --
> -- DougW -- 93 ZJ 4.0 http://members.cox.net/wilsond
> HESCO Supercharger - 300W IASCA Stereo - Edelbrock IAS Shocks
> Gibson Exhaust - rear DCpower - custom gauge install - Stillen Rotors
>
>

Re: 93 Grand Cherokee-Won't Start in Cold
 

Doug,
Lot of great info and I really like your style on your Web site. I want a
supercharger now!
Going to check the distributer in the morning. If you missed it, I finally
got started up. I think through a combination of pumping the gas and holding
it to the floor. Started really rough but then almost immediately settled
down to smooth. Drove it, parked it, started it, did errands and honey-do's
and it had no problem.
I'll check fuel pressure. I have a couple R-12 gauges around here somewhere.
We'll see what happens in the morning.
Would the ESD relay behave this way as it's failing? You know, what with
cold weather starting problem I mean.
Thanks for all your help and access to a great site.
Denny
(side note, I picked text only now. Is it better? Sorry)

"DougW" <post.replies@invalid.address> wrote in message
news:wQPzb.24458$Gj2.8693@okepread01...
> "D" <dpfer@r.com> wrote in message
news:OxKzb.105969$Eq1.40720@twister.rdc-kc.rr.com...
> Hi all.
>
> <side note, html is icky> :)
>
> Going to go through a few ideas.
>
> Ignition issues including misses at speed.
> Bad sparkplug
> bured out wire
> cracked cap
> burned through rotor
> Worn out distributor. (can you move the rotor from side to side or
> is there a lot of oil in the bottom of the distributor)
> If yes, you need a new distributor.
> http://members.cox.net/wilsond/distributor/
>
> I'm almost betting your rotor has burned a hole in it and
> the spark is going through the distributor to ground.
>
> More things to check.
>
> Does the fuel pump turn on when the ignition key goes to run?
> Is the fuel rail pressure up to 32psi?
> (an R-12 gauge works well to test pressure)
> http://members.cox.net/wilsond/Fixes...-test-port.jpg
>
> Have you cleaned the Idle Air Passage in the TB?
> (usually associated with rough idle though)
> http://members.cox.net/wilsond/tb/tb.html
>
> ESD relay (emergency shutdown relay) gone bad. This will
> prevent a start, but it also prevents the fuel pump from
> cycling. (Relay center behind the battery)
>
>
> The diagnositcs page on my site might help.
> Gotta run.
>
>
> --
> -- DougW -- 93 ZJ 4.0 http://members.cox.net/wilsond
> HESCO Supercharger - 300W IASCA Stereo - Edelbrock IAS Shocks
> Gibson Exhaust - rear DCpower - custom gauge install - Stillen Rotors
>
>