1997 transmission sensors

my check engine light came on every other month and auto zone told me
it was the transmission sensor creating the error code.

It only lasted one day, and all was fine.

Now, upon emission testing date here in TN, I failed the test.

The check engine light went off, luckily, and I passed emissions
testing, and got my tags.

Now, instead of being on once every other month for a day, the check
engine light is on for 25 days out of 30.

I've replaced oxygen sensors myself before on my Buick LeSabre, is it
possible to replace my transmission sensors on my jeep?

I've noticed that when the light is on, the transmission does not know
when to change into overdrive.

I have BOTH sensors giving an error message now on the transmission.

Can anyone point me towards the locations of the sensors?

Thanks in advance for any and all help.

Steve

Steve,

What are you driving? We can only assume it's a Jeep but really need a
bit more info!

Jeff DeWitt

wrote:
> my check engine light came on every other month and auto zone told me
> it was the transmission sensor creating the error code.
>
> It only lasted one day, and all was fine.
>
> Now, upon emission testing date here in TN, I failed the test.
>
> The check engine light went off, luckily, and I passed emissions
> testing, and got my tags.
>
> Now, instead of being on once every other month for a day, the check
> engine light is on for 25 days out of 30.
>
> I've replaced oxygen sensors myself before on my Buick LeSabre, is it
> possible to replace my transmission sensors on my jeep?
>
> I've noticed that when the light is on, the transmission does not know
> when to change into overdrive.
>
> I have BOTH sensors giving an error message now on the transmission.
>
> Can anyone point me towards the locations of the sensors?
>
> Thanks in advance for any and all help.
>
> Steve
>

Just a guess.. but 97 grand cherokee 5.2L v8 automatic np242.

Carl

"Jeffrey DeWitt" > wrote in message
...
> Steve,
>
> What are you driving? We can only assume it's a Jeep but really need a
> bit more info!
>
> Jeff DeWitt
>
> wrote:
>> my check engine light came on every other month and auto zone told me
>> it was the transmission sensor creating the error code.
>>
>> It only lasted one day, and all was fine.
>>
>> Now, upon emission testing date here in TN, I failed the test.
>>
>> The check engine light went off, luckily, and I passed emissions
>> testing, and got my tags.
>>
>> Now, instead of being on once every other month for a day, the check
>> engine light is on for 25 days out of 30.
>>
>> I've replaced oxygen sensors myself before on my Buick LeSabre, is it
>> possible to replace my transmission sensors on my jeep?
>>
>> I've noticed that when the light is on, the transmission does not know
>> when to change into overdrive.
>>
>> I have BOTH sensors giving an error message now on the transmission.
>>
>> Can anyone point me towards the locations of the sensors?
>>
>> Thanks in advance for any and all help.
>>
>> Steve
>>

Carl, how did you get that out of Steve's post?

Jeff DeWitt

Carl wrote:
> Just a guess.. but 97 grand cherokee 5.2L v8 automatic np242.
>
> Carl
>
> "Jeffrey DeWitt" > wrote in message
> ...
>
>>Steve,
>>
>>What are you driving? We can only assume it's a Jeep but really need a
>>bit more info!
>>
>>Jeff DeWitt
>>
wrote:
>>
>>>my check engine light came on every other month and auto zone told me
>>>it was the transmission sensor creating the error code.
>>>
>>>It only lasted one day, and all was fine.
>>>
>>>Now, upon emission testing date here in TN, I failed the test.
>>>
>>>The check engine light went off, luckily, and I passed emissions
>>>testing, and got my tags.
>>>
>>>Now, instead of being on once every other month for a day, the check
>>>engine light is on for 25 days out of 30.
>>>
>>>I've replaced oxygen sensors myself before on my Buick LeSabre, is it
>>>possible to replace my transmission sensors on my jeep?
>>>
>>>I've noticed that when the light is on, the transmission does not know
>>>when to change into overdrive.
>>>
>>>I have BOTH sensors giving an error message now on the transmission.
>>>
>>>Can anyone point me towards the locations of the sensors?
>>>
>>>Thanks in advance for any and all help.
>>>
>>>Steve
>>>
>
>
>

Jeffrey DeWitt wrote:
> Carl, how did you get that out of Steve's post?

vicegrips? :]

> Carl wrote:
>> Just a guess.. but 97 grand cherokee 5.2L v8 automatic np242.
>>
>> Carl
>>
>> "Jeffrey DeWitt" > wrote in message
>> ...
>>
>>> Steve,
>>>
>>> What are you driving? We can only assume it's a Jeep but really
>>> need a bit more info!
>>>
>>> Jeff DeWitt
>>>
>>> wrote:
>>>
>>>> my check engine light came on every other month and auto zone told
>>>> me it was the transmission sensor creating the error code.
>>>>
>>>> It only lasted one day, and all was fine.
>>>>
>>>> Now, upon emission testing date here in TN, I failed the test.
>>>>
>>>> The check engine light went off, luckily, and I passed emissions
>>>> testing, and got my tags.
>>>>
>>>> Now, instead of being on once every other month for a day, the
>>>> check engine light is on for 25 days out of 30.
>>>>
>>>> I've replaced oxygen sensors myself before on my Buick LeSabre, is
>>>> it possible to replace my transmission sensors on my jeep?
>>>>
>>>> I've noticed that when the light is on, the transmission does not
>>>> know when to change into overdrive.
>>>>
>>>> I have BOTH sensors giving an error message now on the
>>>> transmission. Can anyone point me towards the locations of the sensors?
>>>>
>>>> Thanks in advance for any and all help.
>>>>
>>>> Steve

Wild guess.

Carl

"Jeffrey DeWitt" > wrote in message
...
> Carl, how did you get that out of Steve's post?
>
> Jeff DeWitt
>
> Carl wrote:
>> Just a guess.. but 97 grand cherokee 5.2L v8 automatic np242.
>>
>> Carl
>>
>> "Jeffrey DeWitt" > wrote in message
>> ...
>>
>>>Steve,
>>>
>>>What are you driving? We can only assume it's a Jeep but really need a
>>>bit more info!
>>>
>>>Jeff DeWitt
>>>
wrote:
>>>
>>>>my check engine light came on every other month and auto zone told me
>>>>it was the transmission sensor creating the error code.
>>>>
>>>>It only lasted one day, and all was fine.
>>>>
>>>>Now, upon emission testing date here in TN, I failed the test.
>>>>
>>>>The check engine light went off, luckily, and I passed emissions
>>>>testing, and got my tags.
>>>>
>>>>Now, instead of being on once every other month for a day, the check
>>>>engine light is on for 25 days out of 30.
>>>>
>>>>I've replaced oxygen sensors myself before on my Buick LeSabre, is it
>>>>possible to replace my transmission sensors on my jeep?
>>>>
>>>>I've noticed that when the light is on, the transmission does not know
>>>>when to change into overdrive.
>>>>
>>>>I have BOTH sensors giving an error message now on the transmission.
>>>>
>>>>Can anyone point me towards the locations of the sensors?
>>>>
>>>>Thanks in advance for any and all help.
>>>>
>>>>Steve
>>>>
>>
>>

Gentlemen,

I'm sorry, it's an 1997 Jeep Cherokee, 6 cyl with automatic
transmission, two wheel drive, and though it doesn't say scout on it,
I've seen others that do...
Carl wrote:
> Wild guess.
>
> Carl
>
> "Jeffrey DeWitt" > wrote in message
> ...
> > Carl, how did you get that out of Steve's post?
> >
> > Jeff DeWitt
> >
> > Carl wrote:
> >> Just a guess.. but 97 grand cherokee 5.2L v8 automatic np242.
> >>
> >> Carl
> >>
> >> "Jeffrey DeWitt" > wrote in message
> >> ...
> >>
> >>>Steve,
> >>>
> >>>What are you driving? We can only assume it's a Jeep but really need a
> >>>bit more info!
> >>>
> >>>Jeff DeWitt
> >>>
> wrote:
> >>>
> >>>>my check engine light came on every other month and auto zone told me
> >>>>it was the transmission sensor creating the error code.
> >>>>
> >>>>It only lasted one day, and all was fine.
> >>>>
> >>>>Now, upon emission testing date here in TN, I failed the test.
> >>>>
> >>>>The check engine light went off, luckily, and I passed emissions
> >>>>testing, and got my tags.
> >>>>
> >>>>Now, instead of being on once every other month for a day, the check
> >>>>engine light is on for 25 days out of 30.
> >>>>
> >>>>I've replaced oxygen sensors myself before on my Buick LeSabre, is it
> >>>>possible to replace my transmission sensors on my jeep?
> >>>>
> >>>>I've noticed that when the light is on, the transmission does not know
> >>>>when to change into overdrive.
> >>>>
> >>>>I have BOTH sensors giving an error message now on the transmission.
> >>>>
> >>>>Can anyone point me towards the locations of the sensors?
> >>>>
> >>>>Thanks in advance for any and all help.
> >>>>
> >>>>Steve
> >>>>
> >>
> >>

To start off, I would get a spray contact cleaner and clean the contacts
on the TPS which controls the transmission shift points. These throttle
position sensors on the 4.0's are notorious for getting bad connections.

Same goes for the other computer sensors like the one on the
transmission, they are easily prone to corrosion and intermittent
failures because of it because they only pass low power computer
signals. Using a spray contact cleaner that the electronic stores sell
does them wonders. Coating the plug seals with dielectric grease also
helps keep them clean.

When electronic parts fail, they normally up and die. Bad connections
usually make the intermittent failures.

I would do the clean before spending money on parts.

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)


sws wrote:
>
> Gentlemen,
>
> I'm sorry, it's an 1997 Jeep Cherokee, 6 cyl with automatic
> transmission, two wheel drive, and though it doesn't say scout on it,
> I've seen others that do...
> Carl wrote:
> > Wild guess.
> >
> > Carl
> >
> > "Jeffrey DeWitt" > wrote in message
> > ...
> > > Carl, how did you get that out of Steve's post?
> > >
> > > Jeff DeWitt
> > >
> > > Carl wrote:
> > >> Just a guess.. but 97 grand cherokee 5.2L v8 automatic np242.
> > >>
> > >> Carl
> > >>
> > >> "Jeffrey DeWitt" > wrote in message
> > >> ...
> > >>
> > >>>Steve,
> > >>>
> > >>>What are you driving? We can only assume it's a Jeep but really need a
> > >>>bit more info!
> > >>>
> > >>>Jeff DeWitt
> > >>>
> > wrote:
> > >>>
> > >>>>my check engine light came on every other month and auto zone told me
> > >>>>it was the transmission sensor creating the error code.
> > >>>>
> > >>>>It only lasted one day, and all was fine.
> > >>>>
> > >>>>Now, upon emission testing date here in TN, I failed the test.
> > >>>>
> > >>>>The check engine light went off, luckily, and I passed emissions
> > >>>>testing, and got my tags.
> > >>>>
> > >>>>Now, instead of being on once every other month for a day, the check
> > >>>>engine light is on for 25 days out of 30.
> > >>>>
> > >>>>I've replaced oxygen sensors myself before on my Buick LeSabre, is it
> > >>>>possible to replace my transmission sensors on my jeep?
> > >>>>
> > >>>>I've noticed that when the light is on, the transmission does not know
> > >>>>when to change into overdrive.
> > >>>>
> > >>>>I have BOTH sensors giving an error message now on the transmission.
> > >>>>
> > >>>>Can anyone point me towards the locations of the sensors?
> > >>>>
> > >>>>Thanks in advance for any and all help.
> > >>>>
> > >>>>Steve
> > >>>>
> > >>
> > >>

Thank you so much for your time, Mike.

Are there any diagrams on-line that would show me the sensors
locations, or should I go ahead and buy the manuals they have for my
model at an auto parts store? What particular transmission do you think
I have?


Mike Romain wrote:
> To start off, I would get a spray contact cleaner and clean the contacts
> on the TPS which controls the transmission shift points. These throttle
> position sensors on the 4.0's are notorious for getting bad connections.
>
> Same goes for the other computer sensors like the one on the
> transmission, they are easily prone to corrosion and intermittent
> failures because of it because they only pass low power computer
> signals. Using a spray contact cleaner that the electronic stores sell
> does them wonders. Coating the plug seals with dielectric grease also
> helps keep them clean.
>
> When electronic parts fail, they normally up and die. Bad connections
> usually make the intermittent failures.
>
> I would do the clean before spending money on parts.
>
> 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)
>
>
> sws wrote:
> >
> > Gentlemen,
> >
> > I'm sorry, it's an 1997 Jeep Cherokee, 6 cyl with automatic
> > transmission, two wheel drive, and though it doesn't say scout on it,
> > I've seen others that do...
> > Carl wrote:
> > > Wild guess.
> > >
> > > Carl
> > >
> > > "Jeffrey DeWitt" > wrote in message
> > > ...
> > > > Carl, how did you get that out of Steve's post?
> > > >
> > > > Jeff DeWitt
> > > >
> > > > Carl wrote:
> > > >> Just a guess.. but 97 grand cherokee 5.2L v8 automatic np242.
> > > >>
> > > >> Carl
> > > >>
> > > >> "Jeffrey DeWitt" > wrote in message
> > > >> ...
> > > >>
> > > >>>Steve,
> > > >>>
> > > >>>What are you driving? We can only assume it's a Jeep but really need a
> > > >>>bit more info!
> > > >>>
> > > >>>Jeff DeWitt
> > > >>>
> > > wrote:
> > > >>>
> > > >>>>my check engine light came on every other month and auto zone told me
> > > >>>>it was the transmission sensor creating the error code.
> > > >>>>
> > > >>>>It only lasted one day, and all was fine.
> > > >>>>
> > > >>>>Now, upon emission testing date here in TN, I failed the test.
> > > >>>>
> > > >>>>The check engine light went off, luckily, and I passed emissions
> > > >>>>testing, and got my tags.
> > > >>>>
> > > >>>>Now, instead of being on once every other month for a day, the check
> > > >>>>engine light is on for 25 days out of 30.
> > > >>>>
> > > >>>>I've replaced oxygen sensors myself before on my Buick LeSabre, is it
> > > >>>>possible to replace my transmission sensors on my jeep?
> > > >>>>
> > > >>>>I've noticed that when the light is on, the transmission does not know
> > > >>>>when to change into overdrive.
> > > >>>>
> > > >>>>I have BOTH sensors giving an error message now on the transmission.
> > > >>>>
> > > >>>>Can anyone point me towards the locations of the sensors?
> > > >>>>
> > > >>>>Thanks in advance for any and all help.
> > > >>>>
> > > >>>>Steve
> > > >>>>
> > > >>
> > > >>

I would get a basic Haynes manual for it. They aren't great but they do
help locate parts and give you all the settings for installing things.
The factory manual is the best, but it is expensive. I guess it depends
on how many repairs you are up for.

Mike

sws wrote:
>
> Thank you so much for your time, Mike.
>
> Are there any diagrams on-line that would show me the sensors
> locations, or should I go ahead and buy the manuals they have for my
> model at an auto parts store? What particular transmission do you think
> I have?
>
> Mike Romain wrote:
> > To start off, I would get a spray contact cleaner and clean the contacts
> > on the TPS which controls the transmission shift points. These throttle
> > position sensors on the 4.0's are notorious for getting bad connections.
> >
> > Same goes for the other computer sensors like the one on the
> > transmission, they are easily prone to corrosion and intermittent
> > failures because of it because they only pass low power computer
> > signals. Using a spray contact cleaner that the electronic stores sell
> > does them wonders. Coating the plug seals with dielectric grease also
> > helps keep them clean.
> >
> > When electronic parts fail, they normally up and die. Bad connections
> > usually make the intermittent failures.
> >
> > I would do the clean before spending money on parts.
> >
> > 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)
> >
> >
> > sws wrote:
> > >
> > > Gentlemen,
> > >
> > > I'm sorry, it's an 1997 Jeep Cherokee, 6 cyl with automatic
> > > transmission, two wheel drive, and though it doesn't say scout on it,
> > > I've seen others that do...
> > > Carl wrote:
> > > > Wild guess.
> > > >
> > > > Carl
> > > >
> > > > "Jeffrey DeWitt" > wrote in message
> > > > ...
> > > > > Carl, how did you get that out of Steve's post?
> > > > >
> > > > > Jeff DeWitt
> > > > >
> > > > > Carl wrote:
> > > > >> Just a guess.. but 97 grand cherokee 5.2L v8 automatic np242.
> > > > >>
> > > > >> Carl
> > > > >>
> > > > >> "Jeffrey DeWitt" > wrote in message
> > > > >> ...
> > > > >>
> > > > >>>Steve,
> > > > >>>
> > > > >>>What are you driving? We can only assume it's a Jeep but really need a
> > > > >>>bit more info!
> > > > >>>
> > > > >>>Jeff DeWitt
> > > > >>>
> > > > wrote:
> > > > >>>
> > > > >>>>my check engine light came on every other month and auto zone told me
> > > > >>>>it was the transmission sensor creating the error code.
> > > > >>>>
> > > > >>>>It only lasted one day, and all was fine.
> > > > >>>>
> > > > >>>>Now, upon emission testing date here in TN, I failed the test.
> > > > >>>>
> > > > >>>>The check engine light went off, luckily, and I passed emissions
> > > > >>>>testing, and got my tags.
> > > > >>>>
> > > > >>>>Now, instead of being on once every other month for a day, the check
> > > > >>>>engine light is on for 25 days out of 30.
> > > > >>>>
> > > > >>>>I've replaced oxygen sensors myself before on my Buick LeSabre, is it
> > > > >>>>possible to replace my transmission sensors on my jeep?
> > > > >>>>
> > > > >>>>I've noticed that when the light is on, the transmission does not know
> > > > >>>>when to change into overdrive.
> > > > >>>>
> > > > >>>>I have BOTH sensors giving an error message now on the transmission.
> > > > >>>>
> > > > >>>>Can anyone point me towards the locations of the sensors?
> > > > >>>>
> > > > >>>>Thanks in advance for any and all help.
> > > > >>>>
> > > > >>>>Steve
> > > > >>>>
> > > > >>
> > > > >>