Re: 93 Grand Cherokee Laredo won't start
 

I don't believe this vehicle has an alarm. How would I arm/disarm the
system (assuming it does have an alarm)?
DougW wrote:
> blg wrote:
> > 93 GCL (216k, Straight 6, auto transmission) won't start. All the
> > lights come on, open door bell dings, radio works, battery seems to
> > check out fine.
> >
> > When I turn the key, nothing happens. The selenoid is not clicking
> > and the starter doesn't do anything.
> >
> > This happened out of the blue....no problems starting prior to going
> > out this morning.
> >
> > Any ideas?
>
> Lots. And one of them might be right too. :)
>
> Before going any further, make sure you arm/disarm the
> alarm system. Just in case the vehicle thinks your trying
> to hotwire it.
>
> Not turning over rules out the CPS sensor and ignition coil, so it has
> to be in the cranking circuit. That's fuses/relay/wires/ignition switch.
>
> fuses:
>
> Behind the battery, in the fuse box, check the fuses. Especially
> the 60A, and 40A ignition and 40A fuseblock ones.
>
> relay:
>
> Engine starter relay is the only one that can prevent the starter from turning.
> You can swap it with a fog relay or a/c relay for testing.
>
> If you have a volt meter.
>
> Looking into the starter relay socket
> -
> - | |
> ^ -<---- should have 12v with key turned to start or run
> |
> `-all the time (fuse F12, 60A)
>
> Sorry, crappy ascii art. :/
>
> If it's not in the above let me know and I'll scan
> in the relevant bits from the service book. That will
> at least get you the schematic.
>
>
> --
> -- DougW -- 93 ZJ 4.0 http://revbeergoggles.com
> HESCO Supercharger - 300W IASCA Stereo - Edelbrock IAS Shocks
> Gibson Exhaust - rear DCpower - custom gauge install - Stillen Rotors
> Banks Header - and BEER, in the fridge!

Re: 93 Grand Cherokee Laredo won't start
 

I don't believe this vehicle has an alarm. How would I arm/disarm the
system (assuming it does have an alarm)?
DougW wrote:
> blg wrote:
> > 93 GCL (216k, Straight 6, auto transmission) won't start. All the
> > lights come on, open door bell dings, radio works, battery seems to
> > check out fine.
> >
> > When I turn the key, nothing happens. The selenoid is not clicking
> > and the starter doesn't do anything.
> >
> > This happened out of the blue....no problems starting prior to going
> > out this morning.
> >
> > Any ideas?
>
> Lots. And one of them might be right too. :)
>
> Before going any further, make sure you arm/disarm the
> alarm system. Just in case the vehicle thinks your trying
> to hotwire it.
>
> Not turning over rules out the CPS sensor and ignition coil, so it has
> to be in the cranking circuit. That's fuses/relay/wires/ignition switch.
>
> fuses:
>
> Behind the battery, in the fuse box, check the fuses. Especially
> the 60A, and 40A ignition and 40A fuseblock ones.
>
> relay:
>
> Engine starter relay is the only one that can prevent the starter from turning.
> You can swap it with a fog relay or a/c relay for testing.
>
> If you have a volt meter.
>
> Looking into the starter relay socket
> -
> - | |
> ^ -<---- should have 12v with key turned to start or run
> |
> `-all the time (fuse F12, 60A)
>
> Sorry, crappy ascii art. :/
>
> If it's not in the above let me know and I'll scan
> in the relevant bits from the service book. That will
> at least get you the schematic.
>
>
> --
> -- DougW -- 93 ZJ 4.0 http://revbeergoggles.com
> HESCO Supercharger - 300W IASCA Stereo - Edelbrock IAS Shocks
> Gibson Exhaust - rear DCpower - custom gauge install - Stillen Rotors
> Banks Header - and BEER, in the fridge!

Re: 93 Grand Cherokee Laredo won't start
 

No starter could easily be a bad connection. If you try it a few times,
then 'carefully' go feel the battery cable ends, you might find one
hot. This hot one will be the bad connection. Careful because the bad
connection can be hot enough to burn you.

The starter could have quit. You can take a hammer and give the starter
a smack. If it then starts, the starter brushes are worn out. You can
replace the starter or just the brushes if soldering doesn't scare you.

We actually fill the starters with mud around here which jams up the
brushes. Then a can of WD40 is used to clean them out on the bench and
away they go again.

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

blg wrote:
>
> I don't believe this vehicle has an alarm. How would I arm/disarm the
> system (assuming it does have an alarm)?
> DougW wrote:
> > blg wrote:
> > > 93 GCL (216k, Straight 6, auto transmission) won't start. All the
> > > lights come on, open door bell dings, radio works, battery seems to
> > > check out fine.
> > >
> > > When I turn the key, nothing happens. The selenoid is not clicking
> > > and the starter doesn't do anything.
> > >
> > > This happened out of the blue....no problems starting prior to going
> > > out this morning.
> > >
> > > Any ideas?
> >
> > Lots. And one of them might be right too. :)
> >
> > Before going any further, make sure you arm/disarm the
> > alarm system. Just in case the vehicle thinks your trying
> > to hotwire it.
> >
> > Not turning over rules out the CPS sensor and ignition coil, so it has
> > to be in the cranking circuit. That's fuses/relay/wires/ignition switch.
> >
> > fuses:
> >
> > Behind the battery, in the fuse box, check the fuses. Especially
> > the 60A, and 40A ignition and 40A fuseblock ones.
> >
> > relay:
> >
> > Engine starter relay is the only one that can prevent the starter from turning.
> > You can swap it with a fog relay or a/c relay for testing.
> >
> > If you have a volt meter.
> >
> > Looking into the starter relay socket
> > -
> > - | |
> > ^ -<---- should have 12v with key turned to start or run
> > |
> > `-all the time (fuse F12, 60A)
> >
> > Sorry, crappy ascii art. :/
> >
> > If it's not in the above let me know and I'll scan
> > in the relevant bits from the service book. That will
> > at least get you the schematic.
> >
> >
> > --
> > -- DougW -- 93 ZJ 4.0 http://revbeergoggles.com
> > HESCO Supercharger - 300W IASCA Stereo - Edelbrock IAS Shocks
> > Gibson Exhaust - rear DCpower - custom gauge install - Stillen Rotors
> > Banks Header - and BEER, in the fridge!

Re: 93 Grand Cherokee Laredo won't start
 

No starter could easily be a bad connection. If you try it a few times,
then 'carefully' go feel the battery cable ends, you might find one
hot. This hot one will be the bad connection. Careful because the bad
connection can be hot enough to burn you.

The starter could have quit. You can take a hammer and give the starter
a smack. If it then starts, the starter brushes are worn out. You can
replace the starter or just the brushes if soldering doesn't scare you.

We actually fill the starters with mud around here which jams up the
brushes. Then a can of WD40 is used to clean them out on the bench and
away they go again.

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

blg wrote:
>
> I don't believe this vehicle has an alarm. How would I arm/disarm the
> system (assuming it does have an alarm)?
> DougW wrote:
> > blg wrote:
> > > 93 GCL (216k, Straight 6, auto transmission) won't start. All the
> > > lights come on, open door bell dings, radio works, battery seems to
> > > check out fine.
> > >
> > > When I turn the key, nothing happens. The selenoid is not clicking
> > > and the starter doesn't do anything.
> > >
> > > This happened out of the blue....no problems starting prior to going
> > > out this morning.
> > >
> > > Any ideas?
> >
> > Lots. And one of them might be right too. :)
> >
> > Before going any further, make sure you arm/disarm the
> > alarm system. Just in case the vehicle thinks your trying
> > to hotwire it.
> >
> > Not turning over rules out the CPS sensor and ignition coil, so it has
> > to be in the cranking circuit. That's fuses/relay/wires/ignition switch.
> >
> > fuses:
> >
> > Behind the battery, in the fuse box, check the fuses. Especially
> > the 60A, and 40A ignition and 40A fuseblock ones.
> >
> > relay:
> >
> > Engine starter relay is the only one that can prevent the starter from turning.
> > You can swap it with a fog relay or a/c relay for testing.
> >
> > If you have a volt meter.
> >
> > Looking into the starter relay socket
> > -
> > - | |
> > ^ -<---- should have 12v with key turned to start or run
> > |
> > `-all the time (fuse F12, 60A)
> >
> > Sorry, crappy ascii art. :/
> >
> > If it's not in the above let me know and I'll scan
> > in the relevant bits from the service book. That will
> > at least get you the schematic.
> >
> >
> > --
> > -- DougW -- 93 ZJ 4.0 http://revbeergoggles.com
> > HESCO Supercharger - 300W IASCA Stereo - Edelbrock IAS Shocks
> > Gibson Exhaust - rear DCpower - custom gauge install - Stillen Rotors
> > Banks Header - and BEER, in the fridge!

Re: 93 Grand Cherokee Laredo won't start
 

No starter could easily be a bad connection. If you try it a few times,
then 'carefully' go feel the battery cable ends, you might find one
hot. This hot one will be the bad connection. Careful because the bad
connection can be hot enough to burn you.

The starter could have quit. You can take a hammer and give the starter
a smack. If it then starts, the starter brushes are worn out. You can
replace the starter or just the brushes if soldering doesn't scare you.

We actually fill the starters with mud around here which jams up the
brushes. Then a can of WD40 is used to clean them out on the bench and
away they go again.

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

blg wrote:
>
> I don't believe this vehicle has an alarm. How would I arm/disarm the
> system (assuming it does have an alarm)?
> DougW wrote:
> > blg wrote:
> > > 93 GCL (216k, Straight 6, auto transmission) won't start. All the
> > > lights come on, open door bell dings, radio works, battery seems to
> > > check out fine.
> > >
> > > When I turn the key, nothing happens. The selenoid is not clicking
> > > and the starter doesn't do anything.
> > >
> > > This happened out of the blue....no problems starting prior to going
> > > out this morning.
> > >
> > > Any ideas?
> >
> > Lots. And one of them might be right too. :)
> >
> > Before going any further, make sure you arm/disarm the
> > alarm system. Just in case the vehicle thinks your trying
> > to hotwire it.
> >
> > Not turning over rules out the CPS sensor and ignition coil, so it has
> > to be in the cranking circuit. That's fuses/relay/wires/ignition switch.
> >
> > fuses:
> >
> > Behind the battery, in the fuse box, check the fuses. Especially
> > the 60A, and 40A ignition and 40A fuseblock ones.
> >
> > relay:
> >
> > Engine starter relay is the only one that can prevent the starter from turning.
> > You can swap it with a fog relay or a/c relay for testing.
> >
> > If you have a volt meter.
> >
> > Looking into the starter relay socket
> > -
> > - | |
> > ^ -<---- should have 12v with key turned to start or run
> > |
> > `-all the time (fuse F12, 60A)
> >
> > Sorry, crappy ascii art. :/
> >
> > If it's not in the above let me know and I'll scan
> > in the relevant bits from the service book. That will
> > at least get you the schematic.
> >
> >
> > --
> > -- DougW -- 93 ZJ 4.0 http://revbeergoggles.com
> > HESCO Supercharger - 300W IASCA Stereo - Edelbrock IAS Shocks
> > Gibson Exhaust - rear DCpower - custom gauge install - Stillen Rotors
> > Banks Header - and BEER, in the fridge!

Re: 93 Grand Cherokee Laredo won't start
 

blg wrote:
> I don't believe this vehicle has an alarm. How would I arm/disarm the
> system (assuming it does have an alarm)?

If it has an infrared key fob, you just lock/unlock the doors.
Also turning the key to unlock in the driver door or tailgate will
disarm the system.

If you press lock, then shut the door, is there a SECURITY light that
flashes on the instrument cluster. If there isn't one then you don't
have an alarm. Sometimes you can tell by looking for the little black
bubble that is in the overhead console or between the rear passenger
overhead lights.

--
DougW

Re: 93 Grand Cherokee Laredo won't start
 

blg wrote:
> I don't believe this vehicle has an alarm. How would I arm/disarm the
> system (assuming it does have an alarm)?

If it has an infrared key fob, you just lock/unlock the doors.
Also turning the key to unlock in the driver door or tailgate will
disarm the system.

If you press lock, then shut the door, is there a SECURITY light that
flashes on the instrument cluster. If there isn't one then you don't
have an alarm. Sometimes you can tell by looking for the little black
bubble that is in the overhead console or between the rear passenger
overhead lights.

--
DougW

Re: 93 Grand Cherokee Laredo won't start
 

blg wrote:
> I don't believe this vehicle has an alarm. How would I arm/disarm the
> system (assuming it does have an alarm)?

If it has an infrared key fob, you just lock/unlock the doors.
Also turning the key to unlock in the driver door or tailgate will
disarm the system.

If you press lock, then shut the door, is there a SECURITY light that
flashes on the instrument cluster. If there isn't one then you don't
have an alarm. Sometimes you can tell by looking for the little black
bubble that is in the overhead console or between the rear passenger
overhead lights.

--
DougW

Re: 93 Grand Cherokee Laredo won't start
 

Thanks for all of the suggestions.
I cleaned the battery terminals. They were not very dirty and cleaning
them didn't help.
The car does have the bubble up near the overhead light however, I've
never seen it blink. Also, there is no dash security light...so, I
don't think it is the alarm system.
There are a couple of other symptoms:
#1. For quite some time, I have had problems removing the key from the
ignition. It won't turn back to the point where it can be pulled out.
Usually, after a few back and forth attempts, the key will come out.
#2. I've also noticed that when the key does come out, the steering
wheel does not lock.

Do either of these things sound fishy...perhaps a neutral safety
switch?

I've pulled the started and I will take it in tomorrow to be tested.

Thanks again.

DougW wrote:
> blg wrote:
> > I don't believe this vehicle has an alarm. How would I arm/disarm the
> > system (assuming it does have an alarm)?
>
> If it has an infrared key fob, you just lock/unlock the doors.
> Also turning the key to unlock in the driver door or tailgate will
> disarm the system.
>
> If you press lock, then shut the door, is there a SECURITY light that
> flashes on the instrument cluster. If there isn't one then you don't
> have an alarm. Sometimes you can tell by looking for the little black
> bubble that is in the overhead console or between the rear passenger
> overhead lights.
>
> --
> DougW

Re: 93 Grand Cherokee Laredo won't start
 

Thanks for all of the suggestions.
I cleaned the battery terminals. They were not very dirty and cleaning
them didn't help.
The car does have the bubble up near the overhead light however, I've
never seen it blink. Also, there is no dash security light...so, I
don't think it is the alarm system.
There are a couple of other symptoms:
#1. For quite some time, I have had problems removing the key from the
ignition. It won't turn back to the point where it can be pulled out.
Usually, after a few back and forth attempts, the key will come out.
#2. I've also noticed that when the key does come out, the steering
wheel does not lock.

Do either of these things sound fishy...perhaps a neutral safety
switch?

I've pulled the started and I will take it in tomorrow to be tested.

Thanks again.

DougW wrote:
> blg wrote:
> > I don't believe this vehicle has an alarm. How would I arm/disarm the
> > system (assuming it does have an alarm)?
>
> If it has an infrared key fob, you just lock/unlock the doors.
> Also turning the key to unlock in the driver door or tailgate will
> disarm the system.
>
> If you press lock, then shut the door, is there a SECURITY light that
> flashes on the instrument cluster. If there isn't one then you don't
> have an alarm. Sometimes you can tell by looking for the little black
> bubble that is in the overhead console or between the rear passenger
> overhead lights.
>
> --
> DougW