Jeep Cherokee Forum

Go Back   Jeep Cherokee Forum > Technical Discussion > OEM Cherokee Tech
Register Forgot Password?
Search

Welcome to Cherokee Forum!
Welcome to Cherokee Forum,

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!


Reply
 
 
 
submit to reddit
 
Thread Tools Search this Thread Display Modes
Old 08-28-2008, 03:16 PM   #1
Senior Member
 
JeepersCreepers's Avatar
 
Join Date: Jul 2008
Location: Orlando, FL
Posts: 659

View JeepersCreepers's Photo Album My Photos
1992 Cherokee
Send a message via AIM to JeepersCreepers
Default Smoking???

Ya I know my Jeep has 186,000 miles on it, and that the rings or valve seals or leaking but how many people out there has a jeep that smokes out the exhaust. Its disappointing to me cause i'm putting so much into it.
__________________
1992 Jeep Cherokee Sport.
4wd NP231. PORC HD SYE. Rusty's Track Bar. Rusty's Drop Pitman Arm. 6.5" Rough Country Lift. Rocky Road CAD. 35" BFG All Terran Tires. 16x8 Crager Soft 8's. Hella 500 Lights. Steel Braided Brake Lines


2004 Dodge Durango SLT

3" Lift Kit. 33" Maxxis Buckshots. 17x8 Crager Soft 8's. Westin Bull Bars. Off Road Lights. Dual Air Filter Intake.


Jeepers Creepers where did you get those peepers,
Jeepers Creepers where did you get those eyes
JeepersCreepers is offline   Reply With Quote
Old 08-28-2008, 03:21 PM   #2
CF Veteran
 
muddeprived's Avatar
 
Join Date: Oct 2007
Location: W-PA
Posts: 3,862

View muddeprived's Photo Album My Photos
2001 Cherokee
Send a message via AIM to muddeprived
Default

That's a nasty habit. You should quit it.

I'm not really sure what it could be but you could try seafoam-ing it. That'll probably smoke it 10x worse for the moment but it'll clean it up real good.
__________________
2001 Sport 4.0 30/8.25 Flux Capacitor Heat Machine
Black XJ club member #1
muddeprived is offline   Reply With Quote
Old 08-28-2008, 03:54 PM   #3
Renix Super Guru
 
BlueXJ's Avatar
 
Join Date: Mar 2008
Location: In yourz postez fissin jurr spelinzs
Posts: 24,520

View BlueXJ's Photo Album My Photos
1990XJ/1989MJ Cherokee
Send a message via Yahoo to BlueXJ
Default

Forget about it and enjoy your Jeep as it is rapidly dieing!!! J/K LOL.
If you want to see if the rings are bad or if it is a bad set of valve seals then do a compression check. Low numbers on two or more cylinders means bad rings. Good numbers and a less than 10% difference from high to low then you have bad seals.
Been doing it that way for 50 years and am right about 90% of the time.
Smoking is bad for Jeeps and other higher lifeforms.
__________________
JEEP I bow to its almighty power which no mortal 4x4 can match.
R.I.P. Zachman you will be missed.
CF the friendly forum
R.I.P. Brian (96_XJ) Perinne

CBW Member #69
BlueXJ is offline   Reply With Quote
Old 08-28-2008, 04:35 PM   #4
The CF Moderator
 
XJ Stryker's Avatar
 
Join Date: Apr 2008
Location: Smiths Station, Al
Posts: 7,610

View XJ Stryker's Photo Album My Photos
87 Wagoneer
Send a message via Yahoo to XJ Stryker
Default

I had a similiar problem with the Black waggie when I first bought it.

So let me ask a few questions and see if this helps. Cause mine was a hard-simple fix.

Does it smoke black when you are at an Idle or only when you are moving the reason I ask is my wives was smoking like crazy when we first bought it and I just new the engine was shot. Turned out to be Oil dripping on a hot exhaust. Looked like it was coming out of the tail pipe but it wasn't. Turned out to be a Rear Main Seal was blown. Unless you know for sure the rings are worn I would take a look and see if there is anything dripping on the exhaust. If it is leaking from there it is more than likely just a rear main seal or the other ones... oilf filter adapter and rear valve cover also appear to leak at rear main.

HTH
__________________
1987 Tan Jeep Wagoneer 4.0L 242 4.5 RC on turdy tree's
2006 F-150 King Ranch 5.4L V-8 Triton

Check out my Waggy build here!

XJ Stryker is offline   Reply With Quote
Old 08-28-2008, 05:03 PM   #5
Senior Member
 
jpdocdave's Avatar
 
Join Date: Aug 2008
Location: tan house white shutters key's under the flower pot
Posts: 969

View jpdocdave's Photo Album My Photos
1996 Cherokee
Default

all good advice, i've had good luck with lucas on some of my older jeeps. not smoking, but reconditioned a 1990 xj w/ 160k that was using 1 qt a month. used lucas at every oil change and putting 1 qt of oil in a month. after a year less than a qt between oil changes, and then i didn't even use a whole bottle of lucas a year and still less than a qt consumption between changes. i used half a bottle every 12k after it stopped using oil.

i am not a licensed lucas representative, i was not paid for this endorsement
__________________
96 xj sport 2" bb 31's
90 mj 4.0 4x4 d44
87 yj frame off (crazy red head)
90 yj soa

pics of project "crazy redhead" http://s293.photobucket.com/albums/m...0build%20pics/
jpdocdave is offline   Reply With Quote
Old 08-28-2008, 05:49 PM   #6
Senior Member
 
JeepersCreepers's Avatar
 
Join Date: Jul 2008
Location: Orlando, FL
Posts: 659

View JeepersCreepers's Photo Album My Photos
1992 Cherokee
Send a message via AIM to JeepersCreepers
Default

If im at idle it smokes from the exhaust. While Im driving, i dont know. I could never tell color of smoke for some reason but it smells like oil. So what blue was saying I may give it a try. I just didnt really understand how you could tell if it was the seals or and rings that are leaking. I always thought if you did a compression test and had say one cylinder 15 psi lower and you put oil in the cylinder and cranked it and the pressure went up then that means it was the rings or if it stayed the same then its the seals. I want to prolong and keep this engine as long as possible.
__________________
1992 Jeep Cherokee Sport.
4wd NP231. PORC HD SYE. Rusty's Track Bar. Rusty's Drop Pitman Arm. 6.5" Rough Country Lift. Rocky Road CAD. 35" BFG All Terran Tires. 16x8 Crager Soft 8's. Hella 500 Lights. Steel Braided Brake Lines


2004 Dodge Durango SLT

3" Lift Kit. 33" Maxxis Buckshots. 17x8 Crager Soft 8's. Westin Bull Bars. Off Road Lights. Dual Air Filter Intake.


Jeepers Creepers where did you get those peepers,
Jeepers Creepers where did you get those eyes
JeepersCreepers is offline   Reply With Quote
Old 08-28-2008, 07:06 PM   #7
::CF Administrator::
 
okcjeeper's Avatar
 
Join Date: May 2008
Location: Okc area
Posts: 9,926

View okcjeeper's Photo Album My Photos
1991 Cherokee
Default

I have always been told what you just said check compression in one cylinder if it's low then add oil if it raises then it's rings..That's how my dad taught me to do it...I have also been told what blue said... So run the compression test if it pans out all good then run some seafoam and imidiatley change your O2 sensor or remove it before running the seafoam or if you have an old one put it in to run the seafoam.. if it was jsut when you first start up and a whitish clear smoke then I'd say condensation in the exhaust system...Also look at the plugs they can often tell whether it's rings or not..
okcjeeper is offline   Reply With Quote
Old 08-28-2008, 07:08 PM   #8
Senior Member
 
Join Date: Jul 2008
Location: West Virginia
Posts: 705

View jeepride's Photo Album My Photos
98 Cherokee
Default

How many miles can you go before you have to add a quart of oil? If not's smoking real bad or using much oil I wouldn't worry to much about it.
__________________
98 xj 4.0L 231 aw4 cobra cb 3 inches and 31's

jeepride is offline   Reply With Quote
Old 08-28-2008, 07:29 PM   #9
Senior Member
 
JeepersCreepers's Avatar
 
Join Date: Jul 2008
Location: Orlando, FL
Posts: 659

View JeepersCreepers's Photo Album My Photos
1992 Cherokee
Send a message via AIM to JeepersCreepers
Default

Quote:
Originally Posted by okcjeeper View Post
I have always been told what you just said check compression in one cylinder if it's low then add oil if it raises then it's rings..That's how my dad taught me to do it...I have also been told what blue said... So run the compression test if it pans out all good then run some seafoam and imidiatley change your O2 sensor or remove it before running the seafoam or if you have an old one put it in to run the seafoam.. if it was jsut when you first start up and a whitish clear smoke then I'd say condensation in the exhaust system...Also look at the plugs they can often tell whether it's rings or not..
Seafoam? The injector cleaner? Just put it in the gas tank? What does the seafoam do? No the smoke is constant. It happens all the time. I have to check to see how much oil it burns. I added 3 quarts yesterday.
__________________
1992 Jeep Cherokee Sport.
4wd NP231. PORC HD SYE. Rusty's Track Bar. Rusty's Drop Pitman Arm. 6.5" Rough Country Lift. Rocky Road CAD. 35" BFG All Terran Tires. 16x8 Crager Soft 8's. Hella 500 Lights. Steel Braided Brake Lines


2004 Dodge Durango SLT

3" Lift Kit. 33" Maxxis Buckshots. 17x8 Crager Soft 8's. Westin Bull Bars. Off Road Lights. Dual Air Filter Intake.


Jeepers Creepers where did you get those peepers,
Jeepers Creepers where did you get those eyes
JeepersCreepers is offline   Reply With Quote
Old 08-28-2008, 07:32 PM   #10
Renix Super Guru
 
BlueXJ's Avatar
 
Join Date: Mar 2008
Location: In yourz postez fissin jurr spelinzs
Posts: 24,520

View BlueXJ's Photo Album My Photos
1990XJ/1989MJ Cherokee
Send a message via Yahoo to BlueXJ
Default

Quote:
Originally Posted by jeepride View Post
How many miles can you go before you have to add a quart of oil? If not's smoking real bad or using much oil I wouldn't worry to much about it.
If you do the 3000 mile oil change thing then less that a qt. low at oil change is prolly OK but over a Qt at oil change time it is time to worry a little.


BTW you can raise compression on a brand new engine with a squirt of oil before the check, so that invalidates the compression test IMO. Oil will help seal any cylinder wall, even badly scored ones.
__________________
JEEP I bow to its almighty power which no mortal 4x4 can match.
R.I.P. Zachman you will be missed.
CF the friendly forum
R.I.P. Brian (96_XJ) Perinne

CBW Member #69
BlueXJ is offline   Reply With Quote
Old 08-28-2008, 07:35 PM   #11
Do you hear banjos?
 
COSXJFAN's Avatar
 
Join Date: Apr 2008
Posts: 9,636

View COSXJFAN's Photo Album My Photos
Cherokee
Default

If it happens at start up and at idle, it's prolly just the valve seals, and I think you can fix those without removing the head. You can get a fitting that screws into your spark plug hole that you put an airhose on and pressurize the cylinder and you can remove the spring retainer and what not, and replace them. If I'm wrong please feel free to drag me out back and shoot me!!LOL!! Later!!
__________________

STEELER FAN TIL DEATH!!!
BAN OWNERS, NOT BREEDS!!!
AMERICAN PIT BULL TERRIERS ARE GREAT PETS!!!

Miguel, fetch my cigarettes!!
COSXJFAN is offline   Reply With Quote
Old 08-28-2008, 07:38 PM   #12
Renix Super Guru
 
BlueXJ's Avatar
 
Join Date: Mar 2008
Location: In yourz postez fissin jurr spelinzs
Posts: 24,520

View BlueXJ's Photo Album My Photos
1990XJ/1989MJ Cherokee
Send a message via Yahoo to BlueXJ
Default

Do you have one of those fittings? I made one from a sparkplug and an air hose quick connect b/c I never saw one for sale anywhere. Here I was feeling like an inventor and go go a burst my bubble.
__________________
JEEP I bow to its almighty power which no mortal 4x4 can match.
R.I.P. Zachman you will be missed.
CF the friendly forum
R.I.P. Brian (96_XJ) Perinne

CBW Member #69
BlueXJ is offline   Reply With Quote
Old 08-28-2008, 07:40 PM   #13
Do you hear banjos?
 
COSXJFAN's Avatar
 
Join Date: Apr 2008
Posts: 9,636

View COSXJFAN's Photo Album My Photos
Cherokee
Default

That is exactly what I've seen!! I've never seen one "for sale", maybe that's our million dollar idea Blue!!!
__________________

STEELER FAN TIL DEATH!!!
BAN OWNERS, NOT BREEDS!!!
AMERICAN PIT BULL TERRIERS ARE GREAT PETS!!!

Miguel, fetch my cigarettes!!
COSXJFAN is offline   Reply With Quote
Old 08-28-2008, 07:46 PM   #14
Senior Member
 
JeepersCreepers's Avatar
 
Join Date: Jul 2008
Location: Orlando, FL
Posts: 659

View JeepersCreepers's Photo Album My Photos
1992 Cherokee
Send a message via AIM to JeepersCreepers
Default

Quote:
Originally Posted by COSXJFAN View Post
If it happens at start up and at idle, it's prolly just the valve seals, and I think you can fix those without removing the head. You can get a fitting that screws into your spark plug hole that you put an airhose on and pressurize the cylinder and you can remove the spring retainer and what not, and replace them. If I'm wrong please feel free to drag me out back and shoot me!!LOL!! Later!!
I only notice the smoke at idle and start up. I do have the fitting. It came with my compression tester kit.
__________________
1992 Jeep Cherokee Sport.
4wd NP231. PORC HD SYE. Rusty's Track Bar. Rusty's Drop Pitman Arm. 6.5" Rough Country Lift. Rocky Road CAD. 35" BFG All Terran Tires. 16x8 Crager Soft 8's. Hella 500 Lights. Steel Braided Brake Lines


2004 Dodge Durango SLT

3" Lift Kit. 33" Maxxis Buckshots. 17x8 Crager Soft 8's. Westin Bull Bars. Off Road Lights. Dual Air Filter Intake.


Jeepers Creepers where did you get those peepers,
Jeepers Creepers where did you get those eyes
JeepersCreepers is offline   Reply With Quote
Old 08-28-2008, 07:50 PM   #15
Renix Super Guru
 
BlueXJ's Avatar
 
Join Date: Mar 2008
Location: In yourz postez fissin jurr spelinzs
Posts: 24,520

View BlueXJ's Photo Album My Photos
1990XJ/1989MJ Cherokee
Send a message via Yahoo to BlueXJ
Default

Quote:
Originally Posted by JeepersCreepers View Post
I do have the fitting. It came with my compression tester kit.
THere goes my and your million bucks COS!!!
Guess we are going to have to work for that million.
__________________
JEEP I bow to its almighty power which no mortal 4x4 can match.
R.I.P. Zachman you will be missed.
CF the friendly forum
R.I.P. Brian (96_XJ) Perinne

CBW Member #69
BlueXJ is offline   Reply With Quote
Old 08-28-2008, 07:50 PM
 
 
 
submit to reddit
Reply
Go Back   Jeep Cherokee Forum > Technical Discussion > OEM Cherokee Tech



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -5. The time now is 08:56 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
This site is in no way affiliated with Jeep or Chrysler.

Emails Backup