L.W.(ßill) ------ III <----------@***.net> wrote in message news:<40D75C43.54D6A7C@***.net>...
> Hi Rick,
> The air conditioning will have nothing to do with smoke out the
> exhaust.
> Have your valve cover gasket replaced and you'll cure that junk
> yard smell.
> God Bless America, ßill O|||||||O
> mailto:-------------------- http://www.----------.com/
>
> Rick wrote:
> >
> > Maybe some of you have an idea what this is ?
> >
> > My 96 Grand Cherokee has 180K miles on it.
> > Recently (on 2 occasions) while on the highway, I noticed a decent
> > amount of smoke in my rear view mirror. I had the AC on. The first
> > time, it just stopped on it's own. The second time, the smoke
> > disappeared after I shut off the air conditioning. I can't tell if
> > the smoke is just white in color or if there is a little blue in
> > there. The engine has a lot of miles on it and it has a moderate oil
> > leak. It's also burning some oil (I can tell by the smell when I get
> > out of the car). However, this new problem seems to be tied in with
> > the air conditioner. The AC still works well inside the car.
> >
> > BY the way, no loss of coolant, and the oil looks ok on the dipstick.
> > Also, I never got an indication of over-heating.
> >
> > Any ideas ??
> >
> > Rick


More info!
I didn't know this before.
My father added some stop leak stuff to the oil last week!
He didn't tell me.
Could that cause intermittant smoke from the exhaust??

 

L.W.(ßill) ------ III <----------@***.net> wrote in message news:<40D75C43.54D6A7C@***.net>...
> Hi Rick,
> The air conditioning will have nothing to do with smoke out the
> exhaust.
> Have your valve cover gasket replaced and you'll cure that junk
> yard smell.
> God Bless America, ßill O|||||||O
> mailto:-------------------- http://www.----------.com/
>
> Rick wrote:
> >
> > Maybe some of you have an idea what this is ?
> >
> > My 96 Grand Cherokee has 180K miles on it.
> > Recently (on 2 occasions) while on the highway, I noticed a decent
> > amount of smoke in my rear view mirror. I had the AC on. The first
> > time, it just stopped on it's own. The second time, the smoke
> > disappeared after I shut off the air conditioning. I can't tell if
> > the smoke is just white in color or if there is a little blue in
> > there. The engine has a lot of miles on it and it has a moderate oil
> > leak. It's also burning some oil (I can tell by the smell when I get
> > out of the car). However, this new problem seems to be tied in with
> > the air conditioner. The AC still works well inside the car.
> >
> > BY the way, no loss of coolant, and the oil looks ok on the dipstick.
> > Also, I never got an indication of over-heating.
> >
> > Any ideas ??
> >
> > Rick


More info!
I didn't know this before.
My father added some stop leak stuff to the oil last week!
He didn't tell me.
Could that cause intermittant smoke from the exhaust??

 

Rick proclaimed:

> L.W.(ßill) ------ III <----------@***.net> wrote in message news:<40D75C43.54D6A7C@***.net>...
>
>>Hi Rick,
>> The air conditioning will have nothing to do with smoke out the
>>exhaust.
>> Have your valve cover gasket replaced and you'll cure that junk
>>yard smell.
>> God Bless America, ßill O|||||||O
>>mailto:-------------------- http://www.----------.com/
>>
>>Rick wrote:
>>
>>>Maybe some of you have an idea what this is ?
>>>
>>>My 96 Grand Cherokee has 180K miles on it.
>>>Recently (on 2 occasions) while on the highway, I noticed a decent
>>>amount of smoke in my rear view mirror. I had the AC on. The first
>>>time, it just stopped on it's own. The second time, the smoke
>>>disappeared after I shut off the air conditioning. I can't tell if
>>>the smoke is just white in color or if there is a little blue in
>>>there. The engine has a lot of miles on it and it has a moderate oil
>>>leak. It's also burning some oil (I can tell by the smell when I get
>>>out of the car). However, this new problem seems to be tied in with
>>>the air conditioner. The AC still works well inside the car.
>>>
>>>BY the way, no loss of coolant, and the oil looks ok on the dipstick.
>>>Also, I never got an indication of over-heating.
>>>
>>>Any ideas ??
>>>
>>>Rick
>
>
>
> More info!
> I didn't know this before.
> My father added some stop leak stuff to the oil last week!
> He didn't tell me.
> Could that cause intermittant smoke from the exhaust??

Stop leak in the oil *might* cause it but only if you have an
internal oil leak in the engine itself..which would be not good news.

If you can see the smoke by running the thing up to goodly speed,
then let off the gas.... then as the thing slows 15-20 miles per
hour, gently press the gas again. Smoke then is usually stuff like
valve seals, altho it could be piston rings or such. Dunno how
easy it is to get oil thru a blown head gasket on the 4.0.

Would think that even with a catalyst you might be able to feel
an oilish material on the inside of the exhaust...AFTER it has
been gotten good and hot, then allowed to cool down. If so, the
oil isn't doing your catalysts much good either.

 

Rick proclaimed:

> L.W.(ßill) ------ III <----------@***.net> wrote in message news:<40D75C43.54D6A7C@***.net>...
>
>>Hi Rick,
>> The air conditioning will have nothing to do with smoke out the
>>exhaust.
>> Have your valve cover gasket replaced and you'll cure that junk
>>yard smell.
>> God Bless America, ßill O|||||||O
>>mailto:-------------------- http://www.----------.com/
>>
>>Rick wrote:
>>
>>>Maybe some of you have an idea what this is ?
>>>
>>>My 96 Grand Cherokee has 180K miles on it.
>>>Recently (on 2 occasions) while on the highway, I noticed a decent
>>>amount of smoke in my rear view mirror. I had the AC on. The first
>>>time, it just stopped on it's own. The second time, the smoke
>>>disappeared after I shut off the air conditioning. I can't tell if
>>>the smoke is just white in color or if there is a little blue in
>>>there. The engine has a lot of miles on it and it has a moderate oil
>>>leak. It's also burning some oil (I can tell by the smell when I get
>>>out of the car). However, this new problem seems to be tied in with
>>>the air conditioner. The AC still works well inside the car.
>>>
>>>BY the way, no loss of coolant, and the oil looks ok on the dipstick.
>>>Also, I never got an indication of over-heating.
>>>
>>>Any ideas ??
>>>
>>>Rick
>
>
>
> More info!
> I didn't know this before.
> My father added some stop leak stuff to the oil last week!
> He didn't tell me.
> Could that cause intermittant smoke from the exhaust??

Stop leak in the oil *might* cause it but only if you have an
internal oil leak in the engine itself..which would be not good news.

If you can see the smoke by running the thing up to goodly speed,
then let off the gas.... then as the thing slows 15-20 miles per
hour, gently press the gas again. Smoke then is usually stuff like
valve seals, altho it could be piston rings or such. Dunno how
easy it is to get oil thru a blown head gasket on the 4.0.

Would think that even with a catalyst you might be able to feel
an oilish material on the inside of the exhaust...AFTER it has
been gotten good and hot, then allowed to cool down. If so, the
oil isn't doing your catalysts much good either.

 

Rick proclaimed:

> L.W.(ßill) ------ III <----------@***.net> wrote in message news:<40D75C43.54D6A7C@***.net>...
>
>>Hi Rick,
>> The air conditioning will have nothing to do with smoke out the
>>exhaust.
>> Have your valve cover gasket replaced and you'll cure that junk
>>yard smell.
>> God Bless America, ßill O|||||||O
>>mailto:-------------------- http://www.----------.com/
>>
>>Rick wrote:
>>
>>>Maybe some of you have an idea what this is ?
>>>
>>>My 96 Grand Cherokee has 180K miles on it.
>>>Recently (on 2 occasions) while on the highway, I noticed a decent
>>>amount of smoke in my rear view mirror. I had the AC on. The first
>>>time, it just stopped on it's own. The second time, the smoke
>>>disappeared after I shut off the air conditioning. I can't tell if
>>>the smoke is just white in color or if there is a little blue in
>>>there. The engine has a lot of miles on it and it has a moderate oil
>>>leak. It's also burning some oil (I can tell by the smell when I get
>>>out of the car). However, this new problem seems to be tied in with
>>>the air conditioner. The AC still works well inside the car.
>>>
>>>BY the way, no loss of coolant, and the oil looks ok on the dipstick.
>>>Also, I never got an indication of over-heating.
>>>
>>>Any ideas ??
>>>
>>>Rick
>
>
>
> More info!
> I didn't know this before.
> My father added some stop leak stuff to the oil last week!
> He didn't tell me.
> Could that cause intermittant smoke from the exhaust??

Stop leak in the oil *might* cause it but only if you have an
internal oil leak in the engine itself..which would be not good news.

If you can see the smoke by running the thing up to goodly speed,
then let off the gas.... then as the thing slows 15-20 miles per
hour, gently press the gas again. Smoke then is usually stuff like
valve seals, altho it could be piston rings or such. Dunno how
easy it is to get oil thru a blown head gasket on the 4.0.

Would think that even with a catalyst you might be able to feel
an oilish material on the inside of the exhaust...AFTER it has
been gotten good and hot, then allowed to cool down. If so, the
oil isn't doing your catalysts much good either.

 

Rick proclaimed:

> L.W.(ßill) ------ III <----------@***.net> wrote in message news:<40D75C43.54D6A7C@***.net>...
>
>>Hi Rick,
>> The air conditioning will have nothing to do with smoke out the
>>exhaust.
>> Have your valve cover gasket replaced and you'll cure that junk
>>yard smell.
>> God Bless America, ßill O|||||||O
>>mailto:-------------------- http://www.----------.com/
>>
>>Rick wrote:
>>
>>>Maybe some of you have an idea what this is ?
>>>
>>>My 96 Grand Cherokee has 180K miles on it.
>>>Recently (on 2 occasions) while on the highway, I noticed a decent
>>>amount of smoke in my rear view mirror. I had the AC on. The first
>>>time, it just stopped on it's own. The second time, the smoke
>>>disappeared after I shut off the air conditioning. I can't tell if
>>>the smoke is just white in color or if there is a little blue in
>>>there. The engine has a lot of miles on it and it has a moderate oil
>>>leak. It's also burning some oil (I can tell by the smell when I get
>>>out of the car). However, this new problem seems to be tied in with
>>>the air conditioner. The AC still works well inside the car.
>>>
>>>BY the way, no loss of coolant, and the oil looks ok on the dipstick.
>>>Also, I never got an indication of over-heating.
>>>
>>>Any ideas ??
>>>
>>>Rick
>
>
>
> More info!
> I didn't know this before.
> My father added some stop leak stuff to the oil last week!
> He didn't tell me.
> Could that cause intermittant smoke from the exhaust??

Stop leak in the oil *might* cause it but only if you have an
internal oil leak in the engine itself..which would be not good news.

If you can see the smoke by running the thing up to goodly speed,
then let off the gas.... then as the thing slows 15-20 miles per
hour, gently press the gas again. Smoke then is usually stuff like
valve seals, altho it could be piston rings or such. Dunno how
easy it is to get oil thru a blown head gasket on the 4.0.

Would think that even with a catalyst you might be able to feel
an oilish material on the inside of the exhaust...AFTER it has
been gotten good and hot, then allowed to cool down. If so, the
oil isn't doing your catalysts much good either.

 

Lon did pass the time by typing:
> Rick proclaimed:

>> More info!
>> I didn't know this before.
>> My father added some stop leak stuff to the oil last week!
>> He didn't tell me.
>> Could that cause intermittant smoke from the exhaust??
>
> Stop leak in the oil *might* cause it but only if you have an
> internal oil leak in the engine itself..which would be not good news.
>
> If you can see the smoke by running the thing up to goodly speed,
> then let off the gas.... then as the thing slows 15-20 miles per
> hour, gently press the gas again. Smoke then is usually stuff like
> valve seals, altho it could be piston rings or such. Dunno how
> easy it is to get oil thru a blown head gasket on the 4.0.
>
> Would think that even with a catalyst you might be able to feel
> an oilish material on the inside of the exhaust...AFTER it has
> been gotten good and hot, then allowed to cool down. If so, the
> oil isn't doing your catalysts much good either.

Easy enough just to pull the plugs and check. Take note of each plug
(or take a photo and give us a link).

The only blown headgaskets in the 4.0 that I've seen sucked coolant or
let the coolant get into the oil. Burning oil has almost always been
worn valve guides. Never looked at the passages that closely. Feed comes
up through the lifter rods and returns through the drain holes, there
isn't enough pressure there to force oil into the engine.

Now on more than one occasion I've had a HUGE white cloud follow me.
Almost thought I blew the engine. Turns out it was a tank of crapoline.
Pumped out a cup by cycling the fuel pump and it was almost 10% water.
Only tank I ever dumped.

p.s. If your going to do this, dump the gas into a large plastic or glass
container and let the water sink to the bottom. Pour the "good" fuel off
into a gas can and repeat. Take a while but slowly it removes the water.
Then go with a fuel system drier.

--
DougW

 

Lon did pass the time by typing:
> Rick proclaimed:

>> More info!
>> I didn't know this before.
>> My father added some stop leak stuff to the oil last week!
>> He didn't tell me.
>> Could that cause intermittant smoke from the exhaust??
>
> Stop leak in the oil *might* cause it but only if you have an
> internal oil leak in the engine itself..which would be not good news.
>
> If you can see the smoke by running the thing up to goodly speed,
> then let off the gas.... then as the thing slows 15-20 miles per
> hour, gently press the gas again. Smoke then is usually stuff like
> valve seals, altho it could be piston rings or such. Dunno how
> easy it is to get oil thru a blown head gasket on the 4.0.
>
> Would think that even with a catalyst you might be able to feel
> an oilish material on the inside of the exhaust...AFTER it has
> been gotten good and hot, then allowed to cool down. If so, the
> oil isn't doing your catalysts much good either.

Easy enough just to pull the plugs and check. Take note of each plug
(or take a photo and give us a link).

The only blown headgaskets in the 4.0 that I've seen sucked coolant or
let the coolant get into the oil. Burning oil has almost always been
worn valve guides. Never looked at the passages that closely. Feed comes
up through the lifter rods and returns through the drain holes, there
isn't enough pressure there to force oil into the engine.

Now on more than one occasion I've had a HUGE white cloud follow me.
Almost thought I blew the engine. Turns out it was a tank of crapoline.
Pumped out a cup by cycling the fuel pump and it was almost 10% water.
Only tank I ever dumped.

p.s. If your going to do this, dump the gas into a large plastic or glass
container and let the water sink to the bottom. Pour the "good" fuel off
into a gas can and repeat. Take a while but slowly it removes the water.
Then go with a fuel system drier.

--
DougW

 

Lon did pass the time by typing:
> Rick proclaimed:

>> More info!
>> I didn't know this before.
>> My father added some stop leak stuff to the oil last week!
>> He didn't tell me.
>> Could that cause intermittant smoke from the exhaust??
>
> Stop leak in the oil *might* cause it but only if you have an
> internal oil leak in the engine itself..which would be not good news.
>
> If you can see the smoke by running the thing up to goodly speed,
> then let off the gas.... then as the thing slows 15-20 miles per
> hour, gently press the gas again. Smoke then is usually stuff like
> valve seals, altho it could be piston rings or such. Dunno how
> easy it is to get oil thru a blown head gasket on the 4.0.
>
> Would think that even with a catalyst you might be able to feel
> an oilish material on the inside of the exhaust...AFTER it has
> been gotten good and hot, then allowed to cool down. If so, the
> oil isn't doing your catalysts much good either.

Easy enough just to pull the plugs and check. Take note of each plug
(or take a photo and give us a link).

The only blown headgaskets in the 4.0 that I've seen sucked coolant or
let the coolant get into the oil. Burning oil has almost always been
worn valve guides. Never looked at the passages that closely. Feed comes
up through the lifter rods and returns through the drain holes, there
isn't enough pressure there to force oil into the engine.

Now on more than one occasion I've had a HUGE white cloud follow me.
Almost thought I blew the engine. Turns out it was a tank of crapoline.
Pumped out a cup by cycling the fuel pump and it was almost 10% water.
Only tank I ever dumped.

p.s. If your going to do this, dump the gas into a large plastic or glass
container and let the water sink to the bottom. Pour the "good" fuel off
into a gas can and repeat. Take a while but slowly it removes the water.
Then go with a fuel system drier.

--
DougW

 

Lon did pass the time by typing:
> Rick proclaimed:

>> More info!
>> I didn't know this before.
>> My father added some stop leak stuff to the oil last week!
>> He didn't tell me.
>> Could that cause intermittant smoke from the exhaust??
>
> Stop leak in the oil *might* cause it but only if you have an
> internal oil leak in the engine itself..which would be not good news.
>
> If you can see the smoke by running the thing up to goodly speed,
> then let off the gas.... then as the thing slows 15-20 miles per
> hour, gently press the gas again. Smoke then is usually stuff like
> valve seals, altho it could be piston rings or such. Dunno how
> easy it is to get oil thru a blown head gasket on the 4.0.
>
> Would think that even with a catalyst you might be able to feel
> an oilish material on the inside of the exhaust...AFTER it has
> been gotten good and hot, then allowed to cool down. If so, the
> oil isn't doing your catalysts much good either.

Easy enough just to pull the plugs and check. Take note of each plug
(or take a photo and give us a link).

The only blown headgaskets in the 4.0 that I've seen sucked coolant or
let the coolant get into the oil. Burning oil has almost always been
worn valve guides. Never looked at the passages that closely. Feed comes
up through the lifter rods and returns through the drain holes, there
isn't enough pressure there to force oil into the engine.

Now on more than one occasion I've had a HUGE white cloud follow me.
Almost thought I blew the engine. Turns out it was a tank of crapoline.
Pumped out a cup by cycling the fuel pump and it was almost 10% water.
Only tank I ever dumped.

p.s. If your going to do this, dump the gas into a large plastic or glass
container and let the water sink to the bottom. Pour the "good" fuel off
into a gas can and repeat. Take a while but slowly it removes the water.
Then go with a fuel system drier.

--
DougW