Jerry Newton

Yep, I would put a new PCV valve in for sure. I have seen this quite often.

Jerry


"Glenn Wainwright" <jeepthing66@ozemail.com.au> wrote in message
news:Kmnwb.284$Om5.9773@nnrp1.ozemail.com.au...
> Hi all, I took my 95 Cherokee out on a 250 mile drive this weekend, when I
> got to my destination, I noticed the smell of oil, oil was all underneath
> the Jeep and spots on the rear window and tailgate, the oil seemed to be
> coming from the back of the sump as in rear main seal, it hadn't lost much
> oil according to the dip stick so I just drove home as normal, when I got
> home it seems as if the oil leak has gone away, and in the couple days
since
> there is no sign of an oil leak(although there has been a seep since the
car
> was less than two years old), seems weird to me but I have a feint memory
of
> someone saying that a faulty pcv valve could cause oil to blow past the
rear
> main seal, could this be true, anyone out there have experience with
this??
> would be a lot easier to replace the pcv valve than pulling the sump
>
> Thanks
> Glenn
> 95 XJ Cherokee
> 74 CJ5
>
>

Jerry Newton

Yep, I would put a new PCV valve in for sure. I have seen this quite often.

Jerry


"Glenn Wainwright" <jeepthing66@ozemail.com.au> wrote in message
news:Kmnwb.284$Om5.9773@nnrp1.ozemail.com.au...
> Hi all, I took my 95 Cherokee out on a 250 mile drive this weekend, when I
> got to my destination, I noticed the smell of oil, oil was all underneath
> the Jeep and spots on the rear window and tailgate, the oil seemed to be
> coming from the back of the sump as in rear main seal, it hadn't lost much
> oil according to the dip stick so I just drove home as normal, when I got
> home it seems as if the oil leak has gone away, and in the couple days
since
> there is no sign of an oil leak(although there has been a seep since the
car
> was less than two years old), seems weird to me but I have a feint memory
of
> someone saying that a faulty pcv valve could cause oil to blow past the
rear
> main seal, could this be true, anyone out there have experience with
this??
> would be a lot easier to replace the pcv valve than pulling the sump
>
> Thanks
> Glenn
> 95 XJ Cherokee
> 74 CJ5
>
>

Jerry Newton

Yep, I would put a new PCV valve in for sure. I have seen this quite often.

Jerry


"Glenn Wainwright" <jeepthing66@ozemail.com.au> wrote in message
news:Kmnwb.284$Om5.9773@nnrp1.ozemail.com.au...
> Hi all, I took my 95 Cherokee out on a 250 mile drive this weekend, when I
> got to my destination, I noticed the smell of oil, oil was all underneath
> the Jeep and spots on the rear window and tailgate, the oil seemed to be
> coming from the back of the sump as in rear main seal, it hadn't lost much
> oil according to the dip stick so I just drove home as normal, when I got
> home it seems as if the oil leak has gone away, and in the couple days
since
> there is no sign of an oil leak(although there has been a seep since the
car
> was less than two years old), seems weird to me but I have a feint memory
of
> someone saying that a faulty pcv valve could cause oil to blow past the
rear
> main seal, could this be true, anyone out there have experience with
this??
> would be a lot easier to replace the pcv valve than pulling the sump
>
> Thanks
> Glenn
> 95 XJ Cherokee
> 74 CJ5
>
>

Mike Romain

Are you getting any oil spits into the air filter?

If so, then the CCV is likely almost blocked up.

There is no PCV on that one I don't believe, just a CCV. It is a small
tube coming off the rear top valve cover grommet. The grommet can get
plugged up, or more likely the plastic tub itself. Mine was plugged, so
I took it off and couldn't blow through it. I soaked it in carb cleaner
for a while, then reamed it out with a chunk of flexible insulated
wire. 12 ga. I think it was.

Here is a link on the parts. DC does sell the replacement kits if you
don't feel like doing the clean.

http://www.off-road.com/jeep/cheroke...ltr/blowby.htm

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

Glenn Wainwright wrote:
>
> Hi all, I took my 95 Cherokee out on a 250 mile drive this weekend, when I
> got to my destination, I noticed the smell of oil, oil was all underneath
> the Jeep and spots on the rear window and tailgate, the oil seemed to be
> coming from the back of the sump as in rear main seal, it hadn't lost much
> oil according to the dip stick so I just drove home as normal, when I got
> home it seems as if the oil leak has gone away, and in the couple days since
> there is no sign of an oil leak(although there has been a seep since the car
> was less than two years old), seems weird to me but I have a feint memory of
> someone saying that a faulty pcv valve could cause oil to blow past the rear
> main seal, could this be true, anyone out there have experience with this??
> would be a lot easier to replace the pcv valve than pulling the sump
>
> Thanks
> Glenn
> 95 XJ Cherokee
> 74 CJ5

Mike Romain

Are you getting any oil spits into the air filter?

If so, then the CCV is likely almost blocked up.

There is no PCV on that one I don't believe, just a CCV. It is a small
tube coming off the rear top valve cover grommet. The grommet can get
plugged up, or more likely the plastic tub itself. Mine was plugged, so
I took it off and couldn't blow through it. I soaked it in carb cleaner
for a while, then reamed it out with a chunk of flexible insulated
wire. 12 ga. I think it was.

Here is a link on the parts. DC does sell the replacement kits if you
don't feel like doing the clean.

http://www.off-road.com/jeep/cheroke...ltr/blowby.htm

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

Glenn Wainwright wrote:
>
> Hi all, I took my 95 Cherokee out on a 250 mile drive this weekend, when I
> got to my destination, I noticed the smell of oil, oil was all underneath
> the Jeep and spots on the rear window and tailgate, the oil seemed to be
> coming from the back of the sump as in rear main seal, it hadn't lost much
> oil according to the dip stick so I just drove home as normal, when I got
> home it seems as if the oil leak has gone away, and in the couple days since
> there is no sign of an oil leak(although there has been a seep since the car
> was less than two years old), seems weird to me but I have a feint memory of
> someone saying that a faulty pcv valve could cause oil to blow past the rear
> main seal, could this be true, anyone out there have experience with this??
> would be a lot easier to replace the pcv valve than pulling the sump
>
> Thanks
> Glenn
> 95 XJ Cherokee
> 74 CJ5

Mike Romain

Are you getting any oil spits into the air filter?

If so, then the CCV is likely almost blocked up.

There is no PCV on that one I don't believe, just a CCV. It is a small
tube coming off the rear top valve cover grommet. The grommet can get
plugged up, or more likely the plastic tub itself. Mine was plugged, so
I took it off and couldn't blow through it. I soaked it in carb cleaner
for a while, then reamed it out with a chunk of flexible insulated
wire. 12 ga. I think it was.

Here is a link on the parts. DC does sell the replacement kits if you
don't feel like doing the clean.

http://www.off-road.com/jeep/cheroke...ltr/blowby.htm

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

Glenn Wainwright wrote:
>
> Hi all, I took my 95 Cherokee out on a 250 mile drive this weekend, when I
> got to my destination, I noticed the smell of oil, oil was all underneath
> the Jeep and spots on the rear window and tailgate, the oil seemed to be
> coming from the back of the sump as in rear main seal, it hadn't lost much
> oil according to the dip stick so I just drove home as normal, when I got
> home it seems as if the oil leak has gone away, and in the couple days since
> there is no sign of an oil leak(although there has been a seep since the car
> was less than two years old), seems weird to me but I have a feint memory of
> someone saying that a faulty pcv valve could cause oil to blow past the rear
> main seal, could this be true, anyone out there have experience with this??
> would be a lot easier to replace the pcv valve than pulling the sump
>
> Thanks
> Glenn
> 95 XJ Cherokee
> 74 CJ5