Re: 1998 Jeep Cherokee power loss, missing, no codes...TPS??
 

The O2 sensor for the Renix system on the 88-91 XJ is under recall!

If you haven't had the recall done it is a freebie still.

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)

JRK58@MSN.COM wrote:
>
> I had the same symptoms with my 90 XJ, it was the O2 sensor. I would
> double check the connection, all connections for that matter as they
> have always been a problem on XJ's.

Re: 1998 Jeep Cherokee power loss, missing, no codes...TPS??
 

The O2 sensor for the Renix system on the 88-91 XJ is under recall!

If you haven't had the recall done it is a freebie still.

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)

JRK58@MSN.COM wrote:
>
> I had the same symptoms with my 90 XJ, it was the O2 sensor. I would
> double check the connection, all connections for that matter as they
> have always been a problem on XJ's.

Re: 1998 Jeep Cherokee power loss, missing, no codes...TPS??
 

The O2 sensor for the Renix system on the 88-91 XJ is under recall!

If you haven't had the recall done it is a freebie still.

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)

JRK58@MSN.COM wrote:
>
> I had the same symptoms with my 90 XJ, it was the O2 sensor. I would
> double check the connection, all connections for that matter as they
> have always been a problem on XJ's.

Re: 1998 Jeep Cherokee power loss, missing, no codes...TPS??
 

Hey Bill;

I have to ask, what is the defining thing to make you believe it is the
springs? I ask because I had thought that weak springs would cause
"clacking" if they weren't doing their job, sort of like a
redlined/overrotated engine, only starting at lower RPM's, but this
problem appears primarily at only around 2000 RPM (which seems really
low), and actually seems to lessen at higer RPM's (22-2500).

Is there a way to know besides the coded diagnostic, because the
computer tester at the dealership showed nothing of the sort -
actually, showed nothing at all, per the mechanics there.

Re: 1998 Jeep Cherokee power loss, missing, no codes...TPS??
 

Hey Bill;

I have to ask, what is the defining thing to make you believe it is the
springs? I ask because I had thought that weak springs would cause
"clacking" if they weren't doing their job, sort of like a
redlined/overrotated engine, only starting at lower RPM's, but this
problem appears primarily at only around 2000 RPM (which seems really
low), and actually seems to lessen at higer RPM's (22-2500).

Is there a way to know besides the coded diagnostic, because the
computer tester at the dealership showed nothing of the sort -
actually, showed nothing at all, per the mechanics there.

Re: 1998 Jeep Cherokee power loss, missing, no codes...TPS??
 

Hey Bill;

I have to ask, what is the defining thing to make you believe it is the
springs? I ask because I had thought that weak springs would cause
"clacking" if they weren't doing their job, sort of like a
redlined/overrotated engine, only starting at lower RPM's, but this
problem appears primarily at only around 2000 RPM (which seems really
low), and actually seems to lessen at higer RPM's (22-2500).

Is there a way to know besides the coded diagnostic, because the
computer tester at the dealership showed nothing of the sort -
actually, showed nothing at all, per the mechanics there.

Re: 1998 Jeep Cherokee power loss, missing, no codes...TPS??
 

Hey Bill;

I have to ask, what is the defining thing to make you believe it is the
springs? I ask because I had thought that weak springs would cause
"clacking" if they weren't doing their job, sort of like a
redlined/overrotated engine, only starting at lower RPM's, but this
problem appears primarily at only around 2000 RPM (which seems really
low), and actually seems to lessen at higer RPM's (22-2500).

Is there a way to know besides the coded diagnostic, because the
computer tester at the dealership showed nothing of the sort -
actually, showed nothing at all, per the mechanics there.

Re: 1998 Jeep Cherokee power loss, missing, no codes...TPS??
 

Mike -
where did you see the recall? I definitely need to check on that. I
know the O2 sensor was already replaced once, but if it is a problem
part, maybe it got replaced with another problem part, since it was
done at the dealer. (heck, wonder if could get a refund...)

I've really been wondering if it wasn't some sort of air temp sensor,
isn't there one on the intake manifold? since it does seem to be a fuel
mix problem AND changes severity with air temperature.



Mike Romain wrote:
> The O2 sensor for the Renix system on the 88-91 XJ is under recall!
>
> If you haven't had the recall done it is a freebie still.
>
> 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)
>
> JRK58@MSN.COM wrote:
> >
> > I had the same symptoms with my 90 XJ, it was the O2 sensor. I would
> > double check the connection, all connections for that matter as they
> > have always been a problem on XJ's.

Re: 1998 Jeep Cherokee power loss, missing, no codes...TPS??
 

Mike -
where did you see the recall? I definitely need to check on that. I
know the O2 sensor was already replaced once, but if it is a problem
part, maybe it got replaced with another problem part, since it was
done at the dealer. (heck, wonder if could get a refund...)

I've really been wondering if it wasn't some sort of air temp sensor,
isn't there one on the intake manifold? since it does seem to be a fuel
mix problem AND changes severity with air temperature.



Mike Romain wrote:
> The O2 sensor for the Renix system on the 88-91 XJ is under recall!
>
> If you haven't had the recall done it is a freebie still.
>
> 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)
>
> JRK58@MSN.COM wrote:
> >
> > I had the same symptoms with my 90 XJ, it was the O2 sensor. I would
> > double check the connection, all connections for that matter as they
> > have always been a problem on XJ's.

Re: 1998 Jeep Cherokee power loss, missing, no codes...TPS??
 

Mike -
where did you see the recall? I definitely need to check on that. I
know the O2 sensor was already replaced once, but if it is a problem
part, maybe it got replaced with another problem part, since it was
done at the dealer. (heck, wonder if could get a refund...)

I've really been wondering if it wasn't some sort of air temp sensor,
isn't there one on the intake manifold? since it does seem to be a fuel
mix problem AND changes severity with air temperature.



Mike Romain wrote:
> The O2 sensor for the Renix system on the 88-91 XJ is under recall!
>
> If you haven't had the recall done it is a freebie still.
>
> 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)
>
> JRK58@MSN.COM wrote:
> >
> > I had the same symptoms with my 90 XJ, it was the O2 sensor. I would
> > double check the connection, all connections for that matter as they
> > have always been a problem on XJ's.