Re: Grand Cherokee 2000 getting Extremely bad millage @ 14.5MPG from 17.5MPG within 1 month.
 

On Wed, 19 Sep 2007 21:45:51 -0400, reboot <reboot@nothere.com> wrote:

>On Wed, 19 Sep 2007 04:57:04 -0000, wilsonb <wilsonbradley@gmail.com>
>wrote:
>
>>The weirdest thing has happened recently.
>>Grand Cherokee 2000 getting Extremely bad millage @ 14.5MPG from
>>17.5MPG within 1 month.
>>Computer jumps back and fourth with MPG 19.5 then jump down to 13.5
>>then back up to 14.5..
>> and it's noticeably guzzling gas like crazy.
>>(Has 1000,000miles)
>>4.7lt, 2wd, V8
>>
>>So far have;
>>Replaced all Sparks with E3
>>Cleaned Air filter
>>Put good gas cleaner in tank a few times now.
>>Use regular gas
>>Have take to Chrysler Dealer and they have no clue.
>>(Will call back tomorrow and ask why they didn't do a full Scan on it
>>when I had a 'full' check done on it.)
>>I checked the exhaust and there is a black grid out of it, maybe gas
>>running to rich? Sensors off? Fuel filter?
>>
>>
>>Any else have this or ideas?
>>
>>Thanks so much..
>
>i vote on the O2 sensors as well, i've had prior experience on 2
>chrysler vehicles with the O2 sensors with exacttly the same symptoms.
>poor fuel consumption (in a very short time), black inside the
>tailpipe and black exhaust under WOT.
>
>on one of these vehicles (where I had the problem w/in the first 20k
>miles) it wasn't a bad sensor but the wires had been routed too close
>to the exhaust manifold and burned through.
>
>On your 4,7 these are pretty easy to get to but you need the special
>socket (I got mine at Napa) to R&R. iirc there are three of these ...
>one on each side ahead of the quick light-off cats and one more
>downstream of the single main cat.

1 O2 sensor upstream of each mini cat. 1 O2 sensor downstream of each
mini cat. There are 4 O2 sensors.

>
>to my knowledge there isn't a good way to diagnose them as a
>component, maybe the scan will tell you if you need to replace all
>three, my guess is that at least the two upstream sensors should be
>replaced.
>
>reboot
>
>
>---
>avast! Antivirus: Outbound message clean.
>Virus Database (VPS): 000775-3, 09/19/2007
>Tested on: 9/19/2007 9:45:51 PM
>avast! - copyright (c) 1988-2007 ALWIL Software.
>http://www.avast.com
>
>

Re: Grand Cherokee 2000 getting Extremely bad millage @ 14.5MPG from 17.5MPG within 1 month.
 

On Wed, 19 Sep 2007 21:45:51 -0400, reboot <reboot@nothere.com> wrote:

>On Wed, 19 Sep 2007 04:57:04 -0000, wilsonb <wilsonbradley@gmail.com>
>wrote:
>
>>The weirdest thing has happened recently.
>>Grand Cherokee 2000 getting Extremely bad millage @ 14.5MPG from
>>17.5MPG within 1 month.
>>Computer jumps back and fourth with MPG 19.5 then jump down to 13.5
>>then back up to 14.5..
>> and it's noticeably guzzling gas like crazy.
>>(Has 1000,000miles)
>>4.7lt, 2wd, V8
>>
>>So far have;
>>Replaced all Sparks with E3
>>Cleaned Air filter
>>Put good gas cleaner in tank a few times now.
>>Use regular gas
>>Have take to Chrysler Dealer and they have no clue.
>>(Will call back tomorrow and ask why they didn't do a full Scan on it
>>when I had a 'full' check done on it.)
>>I checked the exhaust and there is a black grid out of it, maybe gas
>>running to rich? Sensors off? Fuel filter?
>>
>>
>>Any else have this or ideas?
>>
>>Thanks so much..
>
>i vote on the O2 sensors as well, i've had prior experience on 2
>chrysler vehicles with the O2 sensors with exacttly the same symptoms.
>poor fuel consumption (in a very short time), black inside the
>tailpipe and black exhaust under WOT.
>
>on one of these vehicles (where I had the problem w/in the first 20k
>miles) it wasn't a bad sensor but the wires had been routed too close
>to the exhaust manifold and burned through.
>
>On your 4,7 these are pretty easy to get to but you need the special
>socket (I got mine at Napa) to R&R. iirc there are three of these ...
>one on each side ahead of the quick light-off cats and one more
>downstream of the single main cat.

1 O2 sensor upstream of each mini cat. 1 O2 sensor downstream of each
mini cat. There are 4 O2 sensors.

>
>to my knowledge there isn't a good way to diagnose them as a
>component, maybe the scan will tell you if you need to replace all
>three, my guess is that at least the two upstream sensors should be
>replaced.
>
>reboot
>
>
>---
>avast! Antivirus: Outbound message clean.
>Virus Database (VPS): 000775-3, 09/19/2007
>Tested on: 9/19/2007 9:45:51 PM
>avast! - copyright (c) 1988-2007 ALWIL Software.
>http://www.avast.com
>
>

Re: Grand Cherokee 2000 getting Extremely bad millage @ 14.5MPG from 17.5MPG within 1 month.
 

On Wed, 19 Sep 2007 21:45:51 -0400, reboot <reboot@nothere.com> wrote:

>On Wed, 19 Sep 2007 04:57:04 -0000, wilsonb <wilsonbradley@gmail.com>
>wrote:
>
>>The weirdest thing has happened recently.
>>Grand Cherokee 2000 getting Extremely bad millage @ 14.5MPG from
>>17.5MPG within 1 month.
>>Computer jumps back and fourth with MPG 19.5 then jump down to 13.5
>>then back up to 14.5..
>> and it's noticeably guzzling gas like crazy.
>>(Has 1000,000miles)
>>4.7lt, 2wd, V8
>>
>>So far have;
>>Replaced all Sparks with E3
>>Cleaned Air filter
>>Put good gas cleaner in tank a few times now.
>>Use regular gas
>>Have take to Chrysler Dealer and they have no clue.
>>(Will call back tomorrow and ask why they didn't do a full Scan on it
>>when I had a 'full' check done on it.)
>>I checked the exhaust and there is a black grid out of it, maybe gas
>>running to rich? Sensors off? Fuel filter?
>>
>>
>>Any else have this or ideas?
>>
>>Thanks so much..
>
>i vote on the O2 sensors as well, i've had prior experience on 2
>chrysler vehicles with the O2 sensors with exacttly the same symptoms.
>poor fuel consumption (in a very short time), black inside the
>tailpipe and black exhaust under WOT.
>
>on one of these vehicles (where I had the problem w/in the first 20k
>miles) it wasn't a bad sensor but the wires had been routed too close
>to the exhaust manifold and burned through.
>
>On your 4,7 these are pretty easy to get to but you need the special
>socket (I got mine at Napa) to R&R. iirc there are three of these ...
>one on each side ahead of the quick light-off cats and one more
>downstream of the single main cat.

1 O2 sensor upstream of each mini cat. 1 O2 sensor downstream of each
mini cat. There are 4 O2 sensors.

>
>to my knowledge there isn't a good way to diagnose them as a
>component, maybe the scan will tell you if you need to replace all
>three, my guess is that at least the two upstream sensors should be
>replaced.
>
>reboot
>
>
>---
>avast! Antivirus: Outbound message clean.
>Virus Database (VPS): 000775-3, 09/19/2007
>Tested on: 9/19/2007 9:45:51 PM
>avast! - copyright (c) 1988-2007 ALWIL Software.
>http://www.avast.com
>
>

Re: Grand Cherokee 2000 getting Extremely bad millage @ 14.5MPG from 17.5MPG within 1 month.
 

On Wed, 19 Sep 2007 23:06:22 -0700, "L.W. \(Bill\) ------ III"
<LWBill------@------.net> wrote:


> I would have guessed a ------ like you would say not to use the factory
>recommendations: http://www.----------.com/temp/SparkPlugs02WJ.pdf
>http://www.rockauto.com/catalog/x,ca...,parttype,7212
> You jealous little coward.
> Bless America, Bill O|||||||O
>mailto:--------------------

Yeah you're right, your whole f*ck'en life has been one guess after
another. Exactly why you have nothing, and at this point never will.
Sell some of the junk in your garage for beer money, and number ONE,
that BlunderBird, so your wife can raise some flowers with the extra
room.
>
>
>"Some Guy" <noemailformethanks@anyplace.invalid> wrote in message
>news:QemIi.101283$Mu5.7435@newsfe15.phx...
>>
>> Champions are crappy spark plugs, Bill.
>>
>> See Wilson, I told you everything Bill says is useless.

Recipe for a Psychopath:

Emotional & Interpersonal
Glib & Superficial
Egocentric & Grandiose
Lack of Remorse or Guilt
Lack of Empathy
Deceitful & Manipulative
Shallow Emotions
Social Deviance
Impulsive
Poor Behavior Controls
Need for Excitement
Lack of Responsibility
Early Behavior Problems
Adult Antisocial Behavior

This is your life,

L.W. "Cooyon Billy" Goatman------- III

Re: Grand Cherokee 2000 getting Extremely bad millage @ 14.5MPG from 17.5MPG within 1 month.
 

On Wed, 19 Sep 2007 23:06:22 -0700, "L.W. \(Bill\) ------ III"
<LWBill------@------.net> wrote:


> I would have guessed a ------ like you would say not to use the factory
>recommendations: http://www.----------.com/temp/SparkPlugs02WJ.pdf
>http://www.rockauto.com/catalog/x,ca...,parttype,7212
> You jealous little coward.
> Bless America, Bill O|||||||O
>mailto:--------------------

Yeah you're right, your whole f*ck'en life has been one guess after
another. Exactly why you have nothing, and at this point never will.
Sell some of the junk in your garage for beer money, and number ONE,
that BlunderBird, so your wife can raise some flowers with the extra
room.
>
>
>"Some Guy" <noemailformethanks@anyplace.invalid> wrote in message
>news:QemIi.101283$Mu5.7435@newsfe15.phx...
>>
>> Champions are crappy spark plugs, Bill.
>>
>> See Wilson, I told you everything Bill says is useless.

Recipe for a Psychopath:

Emotional & Interpersonal
Glib & Superficial
Egocentric & Grandiose
Lack of Remorse or Guilt
Lack of Empathy
Deceitful & Manipulative
Shallow Emotions
Social Deviance
Impulsive
Poor Behavior Controls
Need for Excitement
Lack of Responsibility
Early Behavior Problems
Adult Antisocial Behavior

This is your life,

L.W. "Cooyon Billy" Goatman------- III

Re: Grand Cherokee 2000 getting Extremely bad millage @ 14.5MPG from 17.5MPG within 1 month.
 

On Wed, 19 Sep 2007 23:06:22 -0700, "L.W. \(Bill\) ------ III"
<LWBill------@------.net> wrote:


> I would have guessed a ------ like you would say not to use the factory
>recommendations: http://www.----------.com/temp/SparkPlugs02WJ.pdf
>http://www.rockauto.com/catalog/x,ca...,parttype,7212
> You jealous little coward.
> Bless America, Bill O|||||||O
>mailto:--------------------

Yeah you're right, your whole f*ck'en life has been one guess after
another. Exactly why you have nothing, and at this point never will.
Sell some of the junk in your garage for beer money, and number ONE,
that BlunderBird, so your wife can raise some flowers with the extra
room.
>
>
>"Some Guy" <noemailformethanks@anyplace.invalid> wrote in message
>news:QemIi.101283$Mu5.7435@newsfe15.phx...
>>
>> Champions are crappy spark plugs, Bill.
>>
>> See Wilson, I told you everything Bill says is useless.

Recipe for a Psychopath:

Emotional & Interpersonal
Glib & Superficial
Egocentric & Grandiose
Lack of Remorse or Guilt
Lack of Empathy
Deceitful & Manipulative
Shallow Emotions
Social Deviance
Impulsive
Poor Behavior Controls
Need for Excitement
Lack of Responsibility
Early Behavior Problems
Adult Antisocial Behavior

This is your life,

L.W. "Cooyon Billy" Goatman------- III

Re: Grand Cherokee 2000 getting Extremely bad millage @ 14.5MPG from 17.5MPG within 1 month.
 

On Wed, 19 Sep 2007 23:06:22 -0700, "L.W. \(Bill\) ------ III"
<LWBill------@------.net> wrote:


> I would have guessed a ------ like you would say not to use the factory
>recommendations: http://www.----------.com/temp/SparkPlugs02WJ.pdf
>http://www.rockauto.com/catalog/x,ca...,parttype,7212
> You jealous little coward.
> Bless America, Bill O|||||||O
>mailto:--------------------

Yeah you're right, your whole f*ck'en life has been one guess after
another. Exactly why you have nothing, and at this point never will.
Sell some of the junk in your garage for beer money, and number ONE,
that BlunderBird, so your wife can raise some flowers with the extra
room.
>
>
>"Some Guy" <noemailformethanks@anyplace.invalid> wrote in message
>news:QemIi.101283$Mu5.7435@newsfe15.phx...
>>
>> Champions are crappy spark plugs, Bill.
>>
>> See Wilson, I told you everything Bill says is useless.

Recipe for a Psychopath:

Emotional & Interpersonal
Glib & Superficial
Egocentric & Grandiose
Lack of Remorse or Guilt
Lack of Empathy
Deceitful & Manipulative
Shallow Emotions
Social Deviance
Impulsive
Poor Behavior Controls
Need for Excitement
Lack of Responsibility
Early Behavior Problems
Adult Antisocial Behavior

This is your life,

L.W. "Cooyon Billy" Goatman------- III

Re: Grand Cherokee 2000 getting Extremely bad millage @ 14.5MPG from 17.5MPG within 1 month.
 

In article <1190177824.393697.135360@n39g2000hsh.googlegroups .com>,
wilsonb <wilsonbradley@gmail.com> wrote:
#So far have;
#Replaced all Sparks with E3
Are they copper core plugs as spec'ed in the service manual?
http://www.wjjeeps.com/service/sparkplugs.htm

#Use regular gas
87?

/herb

Re: Grand Cherokee 2000 getting Extremely bad millage @ 14.5MPG from 17.5MPG within 1 month.
 

In article <1190177824.393697.135360@n39g2000hsh.googlegroups .com>,
wilsonb <wilsonbradley@gmail.com> wrote:
#So far have;
#Replaced all Sparks with E3
Are they copper core plugs as spec'ed in the service manual?
http://www.wjjeeps.com/service/sparkplugs.htm

#Use regular gas
87?

/herb

Re: Grand Cherokee 2000 getting Extremely bad millage @ 14.5MPG from 17.5MPG within 1 month.
 

In article <1190177824.393697.135360@n39g2000hsh.googlegroups .com>,
wilsonb <wilsonbradley@gmail.com> wrote:
#So far have;
#Replaced all Sparks with E3
Are they copper core plugs as spec'ed in the service manual?
http://www.wjjeeps.com/service/sparkplugs.htm

#Use regular gas
87?

/herb