Engine Light
06-28-2007, 11:50 AM
#41
Guest
Posts: n/a
Re: Engine Light
"Alan" <alanb_lano2spam@yahoo.com> wrote in message
news:46813ea4$0$8071$4c368faf@roadrunner.com...
>I live in California and have a 2000 Jeep Cherokee Sport. Occasionally
>(perhaps once a year) the engine light will come on. I'll get antsy and
>plan to take it in for service. But the light only stays on for a couple of
>hours then goes off. I mention this to the service guys and because the
>light isn't on, they have no clue.
>
> What sort of problem causes the engine light to come on?
>
Even if the light is not actively on, there should be stored codes. Use the
scan tool to pull the codes, make a list of them and reset the codes. When
the light comes on again, compare the codes at that time with the codes you
get now, and then fix any problem that appears on both lists, the remaining
codes ought to go away after that.
06-28-2007, 11:53 AM
#42
Guest
Posts: n/a
Re: Engine Light
"Alan" <alanb_lano2spam@yahoo.com> wrote in message
news:46817c21$0$3107$4c368faf@roadrunner.com...
> Since this happens for just a few hours once a year, a loose gas cap would
> fit the symptoms. But since all who replied have said to "read the
> codes" -- and I'll do that -- I assume that whatever caused it to come on
> is stored in the computer -- kind of like a diary -- even though the light
> itself has long since gone off.
>
>
That is exactly right. Codes are stored, like a diary. Pull the codes and
make your own diary, then erase the codes from the computer. Compare the
codes on the NEXT pull to see if there are any repeats, then service the
repeat as appropriate.
06-28-2007, 11:53 AM
#43
Guest
Posts: n/a
Re: Engine Light
"Alan" <alanb_lano2spam@yahoo.com> wrote in message
news:46817c21$0$3107$4c368faf@roadrunner.com...
> Since this happens for just a few hours once a year, a loose gas cap would
> fit the symptoms. But since all who replied have said to "read the
> codes" -- and I'll do that -- I assume that whatever caused it to come on
> is stored in the computer -- kind of like a diary -- even though the light
> itself has long since gone off.
>
>
That is exactly right. Codes are stored, like a diary. Pull the codes and
make your own diary, then erase the codes from the computer. Compare the
codes on the NEXT pull to see if there are any repeats, then service the
repeat as appropriate.
06-28-2007, 11:53 AM
#44
Guest
Posts: n/a
Re: Engine Light
"Alan" <alanb_lano2spam@yahoo.com> wrote in message
news:46817c21$0$3107$4c368faf@roadrunner.com...
> Since this happens for just a few hours once a year, a loose gas cap would
> fit the symptoms. But since all who replied have said to "read the
> codes" -- and I'll do that -- I assume that whatever caused it to come on
> is stored in the computer -- kind of like a diary -- even though the light
> itself has long since gone off.
>
>
That is exactly right. Codes are stored, like a diary. Pull the codes and
make your own diary, then erase the codes from the computer. Compare the
codes on the NEXT pull to see if there are any repeats, then service the
repeat as appropriate.
06-28-2007, 11:53 AM
#45
Guest
Posts: n/a
Re: Engine Light
"Alan" <alanb_lano2spam@yahoo.com> wrote in message
news:46817c21$0$3107$4c368faf@roadrunner.com...
> Since this happens for just a few hours once a year, a loose gas cap would
> fit the symptoms. But since all who replied have said to "read the
> codes" -- and I'll do that -- I assume that whatever caused it to come on
> is stored in the computer -- kind of like a diary -- even though the light
> itself has long since gone off.
>
>
That is exactly right. Codes are stored, like a diary. Pull the codes and
make your own diary, then erase the codes from the computer. Compare the
codes on the NEXT pull to see if there are any repeats, then service the
repeat as appropriate.
06-28-2007, 12:02 PM
#46
Guest
Posts: n/a
Re: Engine Light
"Jeff Strickland" <crwlr@verizon.net> wrote:
>
> "Alan" <alanb_lano2spam@yahoo.com> wrote in message
> news:46813ea4$0$8071$4c368faf@roadrunner.com...
>>I live in California and have a 2000 Jeep Cherokee Sport.
>>Occasionally (perhaps once a year) the engine light will come on.
>>I'll get antsy and plan to take it in for service. But the light
>>only stays on for a couple of hours then goes off. I mention this
>>to the service guys and because the light isn't on, they have no
>>clue.
>>
>> What sort of problem causes the engine light to come on?
>>
>
> Even if the light is not actively on, there should be stored
> codes. Use the scan tool to pull the codes, make a list of them
> and reset the codes. When the light comes on again, compare the
> codes at that time with the codes you get now, and then fix any
> problem that appears on both lists, the remaining codes ought to
> go away after that.
Jeff, I think you're overlooking the main cause of the problem. Read
Alan's next to last sentence above, he doesn't need a scan tool, he
needs a different service place! He's taking his Jeep to people who
apparently don't know to scan for codes and as long as they're
servicing his Jeep he'll be having problems, I'm afraid.
--
XS11E, Killing all posts from Google Groups
The Usenet Improvement Project: http://blinkynet.net/comp/uip5.html
>
> "Alan" <alanb_lano2spam@yahoo.com> wrote in message
> news:46813ea4$0$8071$4c368faf@roadrunner.com...
>>I live in California and have a 2000 Jeep Cherokee Sport.
>>Occasionally (perhaps once a year) the engine light will come on.
>>I'll get antsy and plan to take it in for service. But the light
>>only stays on for a couple of hours then goes off. I mention this
>>to the service guys and because the light isn't on, they have no
>>clue.
>>
>> What sort of problem causes the engine light to come on?
>>
>
> Even if the light is not actively on, there should be stored
> codes. Use the scan tool to pull the codes, make a list of them
> and reset the codes. When the light comes on again, compare the
> codes at that time with the codes you get now, and then fix any
> problem that appears on both lists, the remaining codes ought to
> go away after that.
Jeff, I think you're overlooking the main cause of the problem. Read
Alan's next to last sentence above, he doesn't need a scan tool, he
needs a different service place! He's taking his Jeep to people who
apparently don't know to scan for codes and as long as they're
servicing his Jeep he'll be having problems, I'm afraid.
--
XS11E, Killing all posts from Google Groups
The Usenet Improvement Project: http://blinkynet.net/comp/uip5.html
06-28-2007, 12:02 PM
#47
Guest
Posts: n/a
Re: Engine Light
"Jeff Strickland" <crwlr@verizon.net> wrote:
>
> "Alan" <alanb_lano2spam@yahoo.com> wrote in message
> news:46813ea4$0$8071$4c368faf@roadrunner.com...
>>I live in California and have a 2000 Jeep Cherokee Sport.
>>Occasionally (perhaps once a year) the engine light will come on.
>>I'll get antsy and plan to take it in for service. But the light
>>only stays on for a couple of hours then goes off. I mention this
>>to the service guys and because the light isn't on, they have no
>>clue.
>>
>> What sort of problem causes the engine light to come on?
>>
>
> Even if the light is not actively on, there should be stored
> codes. Use the scan tool to pull the codes, make a list of them
> and reset the codes. When the light comes on again, compare the
> codes at that time with the codes you get now, and then fix any
> problem that appears on both lists, the remaining codes ought to
> go away after that.
Jeff, I think you're overlooking the main cause of the problem. Read
Alan's next to last sentence above, he doesn't need a scan tool, he
needs a different service place! He's taking his Jeep to people who
apparently don't know to scan for codes and as long as they're
servicing his Jeep he'll be having problems, I'm afraid.
--
XS11E, Killing all posts from Google Groups
The Usenet Improvement Project: http://blinkynet.net/comp/uip5.html
>
> "Alan" <alanb_lano2spam@yahoo.com> wrote in message
> news:46813ea4$0$8071$4c368faf@roadrunner.com...
>>I live in California and have a 2000 Jeep Cherokee Sport.
>>Occasionally (perhaps once a year) the engine light will come on.
>>I'll get antsy and plan to take it in for service. But the light
>>only stays on for a couple of hours then goes off. I mention this
>>to the service guys and because the light isn't on, they have no
>>clue.
>>
>> What sort of problem causes the engine light to come on?
>>
>
> Even if the light is not actively on, there should be stored
> codes. Use the scan tool to pull the codes, make a list of them
> and reset the codes. When the light comes on again, compare the
> codes at that time with the codes you get now, and then fix any
> problem that appears on both lists, the remaining codes ought to
> go away after that.
Jeff, I think you're overlooking the main cause of the problem. Read
Alan's next to last sentence above, he doesn't need a scan tool, he
needs a different service place! He's taking his Jeep to people who
apparently don't know to scan for codes and as long as they're
servicing his Jeep he'll be having problems, I'm afraid.
--
XS11E, Killing all posts from Google Groups
The Usenet Improvement Project: http://blinkynet.net/comp/uip5.html
06-28-2007, 12:02 PM
#48
Guest
Posts: n/a
Re: Engine Light
"Jeff Strickland" <crwlr@verizon.net> wrote:
>
> "Alan" <alanb_lano2spam@yahoo.com> wrote in message
> news:46813ea4$0$8071$4c368faf@roadrunner.com...
>>I live in California and have a 2000 Jeep Cherokee Sport.
>>Occasionally (perhaps once a year) the engine light will come on.
>>I'll get antsy and plan to take it in for service. But the light
>>only stays on for a couple of hours then goes off. I mention this
>>to the service guys and because the light isn't on, they have no
>>clue.
>>
>> What sort of problem causes the engine light to come on?
>>
>
> Even if the light is not actively on, there should be stored
> codes. Use the scan tool to pull the codes, make a list of them
> and reset the codes. When the light comes on again, compare the
> codes at that time with the codes you get now, and then fix any
> problem that appears on both lists, the remaining codes ought to
> go away after that.
Jeff, I think you're overlooking the main cause of the problem. Read
Alan's next to last sentence above, he doesn't need a scan tool, he
needs a different service place! He's taking his Jeep to people who
apparently don't know to scan for codes and as long as they're
servicing his Jeep he'll be having problems, I'm afraid.
--
XS11E, Killing all posts from Google Groups
The Usenet Improvement Project: http://blinkynet.net/comp/uip5.html
>
> "Alan" <alanb_lano2spam@yahoo.com> wrote in message
> news:46813ea4$0$8071$4c368faf@roadrunner.com...
>>I live in California and have a 2000 Jeep Cherokee Sport.
>>Occasionally (perhaps once a year) the engine light will come on.
>>I'll get antsy and plan to take it in for service. But the light
>>only stays on for a couple of hours then goes off. I mention this
>>to the service guys and because the light isn't on, they have no
>>clue.
>>
>> What sort of problem causes the engine light to come on?
>>
>
> Even if the light is not actively on, there should be stored
> codes. Use the scan tool to pull the codes, make a list of them
> and reset the codes. When the light comes on again, compare the
> codes at that time with the codes you get now, and then fix any
> problem that appears on both lists, the remaining codes ought to
> go away after that.
Jeff, I think you're overlooking the main cause of the problem. Read
Alan's next to last sentence above, he doesn't need a scan tool, he
needs a different service place! He's taking his Jeep to people who
apparently don't know to scan for codes and as long as they're
servicing his Jeep he'll be having problems, I'm afraid.
--
XS11E, Killing all posts from Google Groups
The Usenet Improvement Project: http://blinkynet.net/comp/uip5.html
06-28-2007, 12:02 PM
#49
Guest
Posts: n/a
Re: Engine Light
"Jeff Strickland" <crwlr@verizon.net> wrote:
>
> "Alan" <alanb_lano2spam@yahoo.com> wrote in message
> news:46813ea4$0$8071$4c368faf@roadrunner.com...
>>I live in California and have a 2000 Jeep Cherokee Sport.
>>Occasionally (perhaps once a year) the engine light will come on.
>>I'll get antsy and plan to take it in for service. But the light
>>only stays on for a couple of hours then goes off. I mention this
>>to the service guys and because the light isn't on, they have no
>>clue.
>>
>> What sort of problem causes the engine light to come on?
>>
>
> Even if the light is not actively on, there should be stored
> codes. Use the scan tool to pull the codes, make a list of them
> and reset the codes. When the light comes on again, compare the
> codes at that time with the codes you get now, and then fix any
> problem that appears on both lists, the remaining codes ought to
> go away after that.
Jeff, I think you're overlooking the main cause of the problem. Read
Alan's next to last sentence above, he doesn't need a scan tool, he
needs a different service place! He's taking his Jeep to people who
apparently don't know to scan for codes and as long as they're
servicing his Jeep he'll be having problems, I'm afraid.
--
XS11E, Killing all posts from Google Groups
The Usenet Improvement Project: http://blinkynet.net/comp/uip5.html
>
> "Alan" <alanb_lano2spam@yahoo.com> wrote in message
> news:46813ea4$0$8071$4c368faf@roadrunner.com...
>>I live in California and have a 2000 Jeep Cherokee Sport.
>>Occasionally (perhaps once a year) the engine light will come on.
>>I'll get antsy and plan to take it in for service. But the light
>>only stays on for a couple of hours then goes off. I mention this
>>to the service guys and because the light isn't on, they have no
>>clue.
>>
>> What sort of problem causes the engine light to come on?
>>
>
> Even if the light is not actively on, there should be stored
> codes. Use the scan tool to pull the codes, make a list of them
> and reset the codes. When the light comes on again, compare the
> codes at that time with the codes you get now, and then fix any
> problem that appears on both lists, the remaining codes ought to
> go away after that.
Jeff, I think you're overlooking the main cause of the problem. Read
Alan's next to last sentence above, he doesn't need a scan tool, he
needs a different service place! He's taking his Jeep to people who
apparently don't know to scan for codes and as long as they're
servicing his Jeep he'll be having problems, I'm afraid.
--
XS11E, Killing all posts from Google Groups
The Usenet Improvement Project: http://blinkynet.net/comp/uip5.html
06-28-2007, 12:02 PM
#50
Guest
Posts: n/a
Re: Engine Light
"Dooly" <abdmalik1@yahoo.com> wrote in message
news:1182991889.747884.131360@m36g2000hse.googlegr oups.com...
>
> Alan wrote:
>> I live in California and have a 2000 Jeep Cherokee Sport. Occasionally
>> (perhaps once a year) the engine light will come on. I'll get antsy and
>> plan
>> to take it in for service. But the light only stays on for a couple of
>> hours
>> then goes off. I mention this to the service guys and because the light
>> isn't on, they have no clue.
>
> hi everyone. i also have a '00 xj and the engine light came on with a
> code of : P1694, 0141, & 0455. anything serious?
> thanks in advance,
> doo
>
POINT OF ORDER
When listing codes, you should give all of the digits, P0141, P0455, P1694,
etc.
I'm not sure what the P1694 code is, another poster said it was a Tach.
Error of some sort. My source says FAULT COMPANION MODE. I do not know what
that means.
P0141 is a problem with an O2 Sensor Heater. The O2 sensor has a heater
built in that improves sensor stability while the engine is still cold, the
code you got says that the heater is not working.
P0455 is a gross leak in the Evaporative Emissions Control System. It could
be any number of things, but a loose gas cap is the leading suspect.
I like this Web page ...
http://autorepair.about.com/od/obdco..._1996_year.htm
