88 Comanche stalling
11-20-2003, 02:38 PM
#41
Guest
Posts: n/a
Re: 88 Comanche stalling
On some of the YJ's the inside ground tag is on the emergency brake
bracket, but that is with the foot powered e-brake. I figure the
Comanche has the hand brake right?
I have also seen bad corrosion on the resistor pack plug. That is way
down under the heater box on the passenger side.
Mike
Will Honea wrote:
>
> On Thu, 20 Nov 2003 15:36:12 UTC Mike Romain <romainm@sympatico.ca>
> wrote:
>
> > One of the main ground tags for the electronics is on the passenger side
> > at the rear of the engine block. The other one is inside on the
> > firewall above the gas pedal.
>
> I've been looking for that inside sucker and still haven't found it -
> it's gotta be there somewhere! I even had the whole dash off a while
> back and still didn't see it - must be under the soundproofing
> somewhere. I'd sure like to finally get my hands on it, tho - when I
> have the blower on High, I get a 3 volt drop between the battery and
> the fan motor ground and a good 2 volt drop in the instrument panel
> ground. That plays hell with the radio so I can imagine that it does
> the computer no good either. It also limits the output of the heater
> to about what I would get in the medium speed position. I've got a
> max 150 mv drop at the firewall metal and the stud where the strap
> from the engine connects, so that part is good. About what you would
> expect - the easy to reach point is just fine...
>
> --
> Will Honea <whonea@codenet.net>
bracket, but that is with the foot powered e-brake. I figure the
Comanche has the hand brake right?
I have also seen bad corrosion on the resistor pack plug. That is way
down under the heater box on the passenger side.
Mike
Will Honea wrote:
>
> On Thu, 20 Nov 2003 15:36:12 UTC Mike Romain <romainm@sympatico.ca>
> wrote:
>
> > One of the main ground tags for the electronics is on the passenger side
> > at the rear of the engine block. The other one is inside on the
> > firewall above the gas pedal.
>
> I've been looking for that inside sucker and still haven't found it -
> it's gotta be there somewhere! I even had the whole dash off a while
> back and still didn't see it - must be under the soundproofing
> somewhere. I'd sure like to finally get my hands on it, tho - when I
> have the blower on High, I get a 3 volt drop between the battery and
> the fan motor ground and a good 2 volt drop in the instrument panel
> ground. That plays hell with the radio so I can imagine that it does
> the computer no good either. It also limits the output of the heater
> to about what I would get in the medium speed position. I've got a
> max 150 mv drop at the firewall metal and the stud where the strap
> from the engine connects, so that part is good. About what you would
> expect - the easy to reach point is just fine...
>
> --
> Will Honea <whonea@codenet.net>
11-20-2003, 02:38 PM
#42
Guest
Posts: n/a
Re: 88 Comanche stalling
On some of the YJ's the inside ground tag is on the emergency brake
bracket, but that is with the foot powered e-brake. I figure the
Comanche has the hand brake right?
I have also seen bad corrosion on the resistor pack plug. That is way
down under the heater box on the passenger side.
Mike
Will Honea wrote:
>
> On Thu, 20 Nov 2003 15:36:12 UTC Mike Romain <romainm@sympatico.ca>
> wrote:
>
> > One of the main ground tags for the electronics is on the passenger side
> > at the rear of the engine block. The other one is inside on the
> > firewall above the gas pedal.
>
> I've been looking for that inside sucker and still haven't found it -
> it's gotta be there somewhere! I even had the whole dash off a while
> back and still didn't see it - must be under the soundproofing
> somewhere. I'd sure like to finally get my hands on it, tho - when I
> have the blower on High, I get a 3 volt drop between the battery and
> the fan motor ground and a good 2 volt drop in the instrument panel
> ground. That plays hell with the radio so I can imagine that it does
> the computer no good either. It also limits the output of the heater
> to about what I would get in the medium speed position. I've got a
> max 150 mv drop at the firewall metal and the stud where the strap
> from the engine connects, so that part is good. About what you would
> expect - the easy to reach point is just fine...
>
> --
> Will Honea <whonea@codenet.net>
bracket, but that is with the foot powered e-brake. I figure the
Comanche has the hand brake right?
I have also seen bad corrosion on the resistor pack plug. That is way
down under the heater box on the passenger side.
Mike
Will Honea wrote:
>
> On Thu, 20 Nov 2003 15:36:12 UTC Mike Romain <romainm@sympatico.ca>
> wrote:
>
> > One of the main ground tags for the electronics is on the passenger side
> > at the rear of the engine block. The other one is inside on the
> > firewall above the gas pedal.
>
> I've been looking for that inside sucker and still haven't found it -
> it's gotta be there somewhere! I even had the whole dash off a while
> back and still didn't see it - must be under the soundproofing
> somewhere. I'd sure like to finally get my hands on it, tho - when I
> have the blower on High, I get a 3 volt drop between the battery and
> the fan motor ground and a good 2 volt drop in the instrument panel
> ground. That plays hell with the radio so I can imagine that it does
> the computer no good either. It also limits the output of the heater
> to about what I would get in the medium speed position. I've got a
> max 150 mv drop at the firewall metal and the stud where the strap
> from the engine connects, so that part is good. About what you would
> expect - the easy to reach point is just fine...
>
> --
> Will Honea <whonea@codenet.net>
11-20-2003, 02:38 PM
#43
Guest
Posts: n/a
Re: 88 Comanche stalling
On some of the YJ's the inside ground tag is on the emergency brake
bracket, but that is with the foot powered e-brake. I figure the
Comanche has the hand brake right?
I have also seen bad corrosion on the resistor pack plug. That is way
down under the heater box on the passenger side.
Mike
Will Honea wrote:
>
> On Thu, 20 Nov 2003 15:36:12 UTC Mike Romain <romainm@sympatico.ca>
> wrote:
>
> > One of the main ground tags for the electronics is on the passenger side
> > at the rear of the engine block. The other one is inside on the
> > firewall above the gas pedal.
>
> I've been looking for that inside sucker and still haven't found it -
> it's gotta be there somewhere! I even had the whole dash off a while
> back and still didn't see it - must be under the soundproofing
> somewhere. I'd sure like to finally get my hands on it, tho - when I
> have the blower on High, I get a 3 volt drop between the battery and
> the fan motor ground and a good 2 volt drop in the instrument panel
> ground. That plays hell with the radio so I can imagine that it does
> the computer no good either. It also limits the output of the heater
> to about what I would get in the medium speed position. I've got a
> max 150 mv drop at the firewall metal and the stud where the strap
> from the engine connects, so that part is good. About what you would
> expect - the easy to reach point is just fine...
>
> --
> Will Honea <whonea@codenet.net>
bracket, but that is with the foot powered e-brake. I figure the
Comanche has the hand brake right?
I have also seen bad corrosion on the resistor pack plug. That is way
down under the heater box on the passenger side.
Mike
Will Honea wrote:
>
> On Thu, 20 Nov 2003 15:36:12 UTC Mike Romain <romainm@sympatico.ca>
> wrote:
>
> > One of the main ground tags for the electronics is on the passenger side
> > at the rear of the engine block. The other one is inside on the
> > firewall above the gas pedal.
>
> I've been looking for that inside sucker and still haven't found it -
> it's gotta be there somewhere! I even had the whole dash off a while
> back and still didn't see it - must be under the soundproofing
> somewhere. I'd sure like to finally get my hands on it, tho - when I
> have the blower on High, I get a 3 volt drop between the battery and
> the fan motor ground and a good 2 volt drop in the instrument panel
> ground. That plays hell with the radio so I can imagine that it does
> the computer no good either. It also limits the output of the heater
> to about what I would get in the medium speed position. I've got a
> max 150 mv drop at the firewall metal and the stud where the strap
> from the engine connects, so that part is good. About what you would
> expect - the easy to reach point is just fine...
>
> --
> Will Honea <whonea@codenet.net>
11-20-2003, 07:31 PM
#44
Guest
Posts: n/a
Re: 88 Comanche stalling
My '94 GC 4.0L cut out too until I had the crank position sensor replaced..
not sure if the '88 Comanche has one of these, but as nothing else has
worked, would consider this possibility..
--
History is only the past if we choose to do nothing about it..
"Mike Romain" <romainm@sympatico.ca> wrote in message
news:3FBD1827.C6A76409@sympatico.ca...
> On some of the YJ's the inside ground tag is on the emergency brake
> bracket, but that is with the foot powered e-brake. I figure the
> Comanche has the hand brake right?
>
> I have also seen bad corrosion on the resistor pack plug. That is way
> down under the heater box on the passenger side.
>
> Mike
>
> Will Honea wrote:
> >
> > On Thu, 20 Nov 2003 15:36:12 UTC Mike Romain <romainm@sympatico.ca>
> > wrote:
> >
> > > One of the main ground tags for the electronics is on the passenger
side
> > > at the rear of the engine block. The other one is inside on the
> > > firewall above the gas pedal.
> >
> > I've been looking for that inside sucker and still haven't found it -
> > it's gotta be there somewhere! I even had the whole dash off a while
> > back and still didn't see it - must be under the soundproofing
> > somewhere. I'd sure like to finally get my hands on it, tho - when I
> > have the blower on High, I get a 3 volt drop between the battery and
> > the fan motor ground and a good 2 volt drop in the instrument panel
> > ground. That plays hell with the radio so I can imagine that it does
> > the computer no good either. It also limits the output of the heater
> > to about what I would get in the medium speed position. I've got a
> > max 150 mv drop at the firewall metal and the stud where the strap
> > from the engine connects, so that part is good. About what you would
> > expect - the easy to reach point is just fine...
> >
> > --
> > Will Honea <whonea@codenet.net>
not sure if the '88 Comanche has one of these, but as nothing else has
worked, would consider this possibility..
--
History is only the past if we choose to do nothing about it..
"Mike Romain" <romainm@sympatico.ca> wrote in message
news:3FBD1827.C6A76409@sympatico.ca...
> On some of the YJ's the inside ground tag is on the emergency brake
> bracket, but that is with the foot powered e-brake. I figure the
> Comanche has the hand brake right?
>
> I have also seen bad corrosion on the resistor pack plug. That is way
> down under the heater box on the passenger side.
>
> Mike
>
> Will Honea wrote:
> >
> > On Thu, 20 Nov 2003 15:36:12 UTC Mike Romain <romainm@sympatico.ca>
> > wrote:
> >
> > > One of the main ground tags for the electronics is on the passenger
side
> > > at the rear of the engine block. The other one is inside on the
> > > firewall above the gas pedal.
> >
> > I've been looking for that inside sucker and still haven't found it -
> > it's gotta be there somewhere! I even had the whole dash off a while
> > back and still didn't see it - must be under the soundproofing
> > somewhere. I'd sure like to finally get my hands on it, tho - when I
> > have the blower on High, I get a 3 volt drop between the battery and
> > the fan motor ground and a good 2 volt drop in the instrument panel
> > ground. That plays hell with the radio so I can imagine that it does
> > the computer no good either. It also limits the output of the heater
> > to about what I would get in the medium speed position. I've got a
> > max 150 mv drop at the firewall metal and the stud where the strap
> > from the engine connects, so that part is good. About what you would
> > expect - the easy to reach point is just fine...
> >
> > --
> > Will Honea <whonea@codenet.net>
11-20-2003, 07:31 PM
#45
Guest
Posts: n/a
Re: 88 Comanche stalling
My '94 GC 4.0L cut out too until I had the crank position sensor replaced..
not sure if the '88 Comanche has one of these, but as nothing else has
worked, would consider this possibility..
--
History is only the past if we choose to do nothing about it..
"Mike Romain" <romainm@sympatico.ca> wrote in message
news:3FBD1827.C6A76409@sympatico.ca...
> On some of the YJ's the inside ground tag is on the emergency brake
> bracket, but that is with the foot powered e-brake. I figure the
> Comanche has the hand brake right?
>
> I have also seen bad corrosion on the resistor pack plug. That is way
> down under the heater box on the passenger side.
>
> Mike
>
> Will Honea wrote:
> >
> > On Thu, 20 Nov 2003 15:36:12 UTC Mike Romain <romainm@sympatico.ca>
> > wrote:
> >
> > > One of the main ground tags for the electronics is on the passenger
side
> > > at the rear of the engine block. The other one is inside on the
> > > firewall above the gas pedal.
> >
> > I've been looking for that inside sucker and still haven't found it -
> > it's gotta be there somewhere! I even had the whole dash off a while
> > back and still didn't see it - must be under the soundproofing
> > somewhere. I'd sure like to finally get my hands on it, tho - when I
> > have the blower on High, I get a 3 volt drop between the battery and
> > the fan motor ground and a good 2 volt drop in the instrument panel
> > ground. That plays hell with the radio so I can imagine that it does
> > the computer no good either. It also limits the output of the heater
> > to about what I would get in the medium speed position. I've got a
> > max 150 mv drop at the firewall metal and the stud where the strap
> > from the engine connects, so that part is good. About what you would
> > expect - the easy to reach point is just fine...
> >
> > --
> > Will Honea <whonea@codenet.net>
not sure if the '88 Comanche has one of these, but as nothing else has
worked, would consider this possibility..
--
History is only the past if we choose to do nothing about it..
"Mike Romain" <romainm@sympatico.ca> wrote in message
news:3FBD1827.C6A76409@sympatico.ca...
> On some of the YJ's the inside ground tag is on the emergency brake
> bracket, but that is with the foot powered e-brake. I figure the
> Comanche has the hand brake right?
>
> I have also seen bad corrosion on the resistor pack plug. That is way
> down under the heater box on the passenger side.
>
> Mike
>
> Will Honea wrote:
> >
> > On Thu, 20 Nov 2003 15:36:12 UTC Mike Romain <romainm@sympatico.ca>
> > wrote:
> >
> > > One of the main ground tags for the electronics is on the passenger
side
> > > at the rear of the engine block. The other one is inside on the
> > > firewall above the gas pedal.
> >
> > I've been looking for that inside sucker and still haven't found it -
> > it's gotta be there somewhere! I even had the whole dash off a while
> > back and still didn't see it - must be under the soundproofing
> > somewhere. I'd sure like to finally get my hands on it, tho - when I
> > have the blower on High, I get a 3 volt drop between the battery and
> > the fan motor ground and a good 2 volt drop in the instrument panel
> > ground. That plays hell with the radio so I can imagine that it does
> > the computer no good either. It also limits the output of the heater
> > to about what I would get in the medium speed position. I've got a
> > max 150 mv drop at the firewall metal and the stud where the strap
> > from the engine connects, so that part is good. About what you would
> > expect - the easy to reach point is just fine...
> >
> > --
> > Will Honea <whonea@codenet.net>
11-20-2003, 07:31 PM
#46
Guest
Posts: n/a
Re: 88 Comanche stalling
My '94 GC 4.0L cut out too until I had the crank position sensor replaced..
not sure if the '88 Comanche has one of these, but as nothing else has
worked, would consider this possibility..
--
History is only the past if we choose to do nothing about it..
"Mike Romain" <romainm@sympatico.ca> wrote in message
news:3FBD1827.C6A76409@sympatico.ca...
> On some of the YJ's the inside ground tag is on the emergency brake
> bracket, but that is with the foot powered e-brake. I figure the
> Comanche has the hand brake right?
>
> I have also seen bad corrosion on the resistor pack plug. That is way
> down under the heater box on the passenger side.
>
> Mike
>
> Will Honea wrote:
> >
> > On Thu, 20 Nov 2003 15:36:12 UTC Mike Romain <romainm@sympatico.ca>
> > wrote:
> >
> > > One of the main ground tags for the electronics is on the passenger
side
> > > at the rear of the engine block. The other one is inside on the
> > > firewall above the gas pedal.
> >
> > I've been looking for that inside sucker and still haven't found it -
> > it's gotta be there somewhere! I even had the whole dash off a while
> > back and still didn't see it - must be under the soundproofing
> > somewhere. I'd sure like to finally get my hands on it, tho - when I
> > have the blower on High, I get a 3 volt drop between the battery and
> > the fan motor ground and a good 2 volt drop in the instrument panel
> > ground. That plays hell with the radio so I can imagine that it does
> > the computer no good either. It also limits the output of the heater
> > to about what I would get in the medium speed position. I've got a
> > max 150 mv drop at the firewall metal and the stud where the strap
> > from the engine connects, so that part is good. About what you would
> > expect - the easy to reach point is just fine...
> >
> > --
> > Will Honea <whonea@codenet.net>
not sure if the '88 Comanche has one of these, but as nothing else has
worked, would consider this possibility..
--
History is only the past if we choose to do nothing about it..
"Mike Romain" <romainm@sympatico.ca> wrote in message
news:3FBD1827.C6A76409@sympatico.ca...
> On some of the YJ's the inside ground tag is on the emergency brake
> bracket, but that is with the foot powered e-brake. I figure the
> Comanche has the hand brake right?
>
> I have also seen bad corrosion on the resistor pack plug. That is way
> down under the heater box on the passenger side.
>
> Mike
>
> Will Honea wrote:
> >
> > On Thu, 20 Nov 2003 15:36:12 UTC Mike Romain <romainm@sympatico.ca>
> > wrote:
> >
> > > One of the main ground tags for the electronics is on the passenger
side
> > > at the rear of the engine block. The other one is inside on the
> > > firewall above the gas pedal.
> >
> > I've been looking for that inside sucker and still haven't found it -
> > it's gotta be there somewhere! I even had the whole dash off a while
> > back and still didn't see it - must be under the soundproofing
> > somewhere. I'd sure like to finally get my hands on it, tho - when I
> > have the blower on High, I get a 3 volt drop between the battery and
> > the fan motor ground and a good 2 volt drop in the instrument panel
> > ground. That plays hell with the radio so I can imagine that it does
> > the computer no good either. It also limits the output of the heater
> > to about what I would get in the medium speed position. I've got a
> > max 150 mv drop at the firewall metal and the stud where the strap
> > from the engine connects, so that part is good. About what you would
> > expect - the easy to reach point is just fine...
> >
> > --
> > Will Honea <whonea@codenet.net>
11-21-2003, 12:23 AM
#47
Guest
Posts: n/a
Re: 88 Comanche stalling
In message <3FBCDEDB.ABFC1F9E@sympatico.ca>, "Mike Romain" wrote:
>The ballast resistor also controls the injectors I believe. If the fuel
>pump isn't getting a clean power signal, I think the injectors shut down
>too.
The ballast is only there for the fuel pump. The computer pulses B+ to the
injectors.
>
>Mike
>
>"L.W.(ßill) ------ III" wrote:
>>
>> "I am getting 40 lbs of fuel pressure."
>> God Bless America, ßill O|||||||O
>> mailto:-------------------- http://www.----------.com/
>>
>> Mike Romain wrote:
>> >
>> > There is a balllast resistor on the fuel pump power on my 88.
>> >
>> > It is a white ceramic one out near the rad on the drivers side.
>> >
>> > The pump also relies on the body for ground, so if the ground strap is
>> > bad it will up and cut out.
>> >
>> > Mike
>> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
>> > 88 Cherokee 235 BFG AT's
>The ballast resistor also controls the injectors I believe. If the fuel
>pump isn't getting a clean power signal, I think the injectors shut down
>too.
The ballast is only there for the fuel pump. The computer pulses B+ to the
injectors.
>
>Mike
>
>"L.W.(ßill) ------ III" wrote:
>>
>> "I am getting 40 lbs of fuel pressure."
>> God Bless America, ßill O|||||||O
>> mailto:-------------------- http://www.----------.com/
>>
>> Mike Romain wrote:
>> >
>> > There is a balllast resistor on the fuel pump power on my 88.
>> >
>> > It is a white ceramic one out near the rad on the drivers side.
>> >
>> > The pump also relies on the body for ground, so if the ground strap is
>> > bad it will up and cut out.
>> >
>> > Mike
>> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
>> > 88 Cherokee 235 BFG AT's
11-21-2003, 12:23 AM
#48
Guest
Posts: n/a
Re: 88 Comanche stalling
In message <3FBCDEDB.ABFC1F9E@sympatico.ca>, "Mike Romain" wrote:
>The ballast resistor also controls the injectors I believe. If the fuel
>pump isn't getting a clean power signal, I think the injectors shut down
>too.
The ballast is only there for the fuel pump. The computer pulses B+ to the
injectors.
>
>Mike
>
>"L.W.(ßill) ------ III" wrote:
>>
>> "I am getting 40 lbs of fuel pressure."
>> God Bless America, ßill O|||||||O
>> mailto:-------------------- http://www.----------.com/
>>
>> Mike Romain wrote:
>> >
>> > There is a balllast resistor on the fuel pump power on my 88.
>> >
>> > It is a white ceramic one out near the rad on the drivers side.
>> >
>> > The pump also relies on the body for ground, so if the ground strap is
>> > bad it will up and cut out.
>> >
>> > Mike
>> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
>> > 88 Cherokee 235 BFG AT's
>The ballast resistor also controls the injectors I believe. If the fuel
>pump isn't getting a clean power signal, I think the injectors shut down
>too.
The ballast is only there for the fuel pump. The computer pulses B+ to the
injectors.
>
>Mike
>
>"L.W.(ßill) ------ III" wrote:
>>
>> "I am getting 40 lbs of fuel pressure."
>> God Bless America, ßill O|||||||O
>> mailto:-------------------- http://www.----------.com/
>>
>> Mike Romain wrote:
>> >
>> > There is a balllast resistor on the fuel pump power on my 88.
>> >
>> > It is a white ceramic one out near the rad on the drivers side.
>> >
>> > The pump also relies on the body for ground, so if the ground strap is
>> > bad it will up and cut out.
>> >
>> > Mike
>> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
>> > 88 Cherokee 235 BFG AT's
11-21-2003, 12:23 AM
#49
Guest
Posts: n/a
Re: 88 Comanche stalling
In message <3FBCDEDB.ABFC1F9E@sympatico.ca>, "Mike Romain" wrote:
>The ballast resistor also controls the injectors I believe. If the fuel
>pump isn't getting a clean power signal, I think the injectors shut down
>too.
The ballast is only there for the fuel pump. The computer pulses B+ to the
injectors.
>
>Mike
>
>"L.W.(ßill) ------ III" wrote:
>>
>> "I am getting 40 lbs of fuel pressure."
>> God Bless America, ßill O|||||||O
>> mailto:-------------------- http://www.----------.com/
>>
>> Mike Romain wrote:
>> >
>> > There is a balllast resistor on the fuel pump power on my 88.
>> >
>> > It is a white ceramic one out near the rad on the drivers side.
>> >
>> > The pump also relies on the body for ground, so if the ground strap is
>> > bad it will up and cut out.
>> >
>> > Mike
>> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
>> > 88 Cherokee 235 BFG AT's
>The ballast resistor also controls the injectors I believe. If the fuel
>pump isn't getting a clean power signal, I think the injectors shut down
>too.
The ballast is only there for the fuel pump. The computer pulses B+ to the
injectors.
>
>Mike
>
>"L.W.(ßill) ------ III" wrote:
>>
>> "I am getting 40 lbs of fuel pressure."
>> God Bless America, ßill O|||||||O
>> mailto:-------------------- http://www.----------.com/
>>
>> Mike Romain wrote:
>> >
>> > There is a balllast resistor on the fuel pump power on my 88.
>> >
>> > It is a white ceramic one out near the rad on the drivers side.
>> >
>> > The pump also relies on the body for ground, so if the ground strap is
>> > bad it will up and cut out.
>> >
>> > Mike
>> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
>> > 88 Cherokee 235 BFG AT's
11-21-2003, 01:16 AM
#50
Guest
Posts: n/a
Re: 88 Comanche stalling
The MJ has the foot brake - unfortunately so, as I much prefer the
hand style. The resistor pack is clean, but my drop is all ground
lead to firewall (or battery) so corrosion in the hot side wouldn't
produce the float I'm seeing. It's a classic ground issue - I'll find
it eventually.
On Thu, 20 Nov 2003 19:38:15 UTC Mike Romain <romainm@sympatico.ca>
wrote:
> On some of the YJ's the inside ground tag is on the emergency brake
> bracket, but that is with the foot powered e-brake. I figure the
> Comanche has the hand brake right?
>
> I have also seen bad corrosion on the resistor pack plug. That is way
> down under the heater box on the passenger side.
>
> Mike
>
> Will Honea wrote:
> >
> > On Thu, 20 Nov 2003 15:36:12 UTC Mike Romain <romainm@sympatico.ca>
> > wrote:
> >
> > > One of the main ground tags for the electronics is on the passenger side
> > > at the rear of the engine block. The other one is inside on the
> > > firewall above the gas pedal.
> >
> > I've been looking for that inside sucker and still haven't found it -
> > it's gotta be there somewhere! I even had the whole dash off a while
> > back and still didn't see it - must be under the soundproofing
> > somewhere. I'd sure like to finally get my hands on it, tho - when I
> > have the blower on High, I get a 3 volt drop between the battery and
> > the fan motor ground and a good 2 volt drop in the instrument panel
> > ground. That plays hell with the radio so I can imagine that it does
> > the computer no good either. It also limits the output of the heater
> > to about what I would get in the medium speed position. I've got a
> > max 150 mv drop at the firewall metal and the stud where the strap
> > from the engine connects, so that part is good. About what you would
> > expect - the easy to reach point is just fine...
> >
> > --
> > Will Honea <whonea@codenet.net>
--
Will Honea <whonea@codenet.net>
hand style. The resistor pack is clean, but my drop is all ground
lead to firewall (or battery) so corrosion in the hot side wouldn't
produce the float I'm seeing. It's a classic ground issue - I'll find
it eventually.
On Thu, 20 Nov 2003 19:38:15 UTC Mike Romain <romainm@sympatico.ca>
wrote:
> On some of the YJ's the inside ground tag is on the emergency brake
> bracket, but that is with the foot powered e-brake. I figure the
> Comanche has the hand brake right?
>
> I have also seen bad corrosion on the resistor pack plug. That is way
> down under the heater box on the passenger side.
>
> Mike
>
> Will Honea wrote:
> >
> > On Thu, 20 Nov 2003 15:36:12 UTC Mike Romain <romainm@sympatico.ca>
> > wrote:
> >
> > > One of the main ground tags for the electronics is on the passenger side
> > > at the rear of the engine block. The other one is inside on the
> > > firewall above the gas pedal.
> >
> > I've been looking for that inside sucker and still haven't found it -
> > it's gotta be there somewhere! I even had the whole dash off a while
> > back and still didn't see it - must be under the soundproofing
> > somewhere. I'd sure like to finally get my hands on it, tho - when I
> > have the blower on High, I get a 3 volt drop between the battery and
> > the fan motor ground and a good 2 volt drop in the instrument panel
> > ground. That plays hell with the radio so I can imagine that it does
> > the computer no good either. It also limits the output of the heater
> > to about what I would get in the medium speed position. I've got a
> > max 150 mv drop at the firewall metal and the stud where the strap
> > from the engine connects, so that part is good. About what you would
> > expect - the easy to reach point is just fine...
> >
> > --
> > Will Honea <whonea@codenet.net>
--
Will Honea <whonea@codenet.net>