Seafoam - bad idea.
CF Veteran
Joined: Oct 2011
Posts: 1,394
Likes: 8
From: SEMO
Year: 2000
Model: Cherokee (XJ)
Engine: 4.0 L6
Newbie
Joined: Feb 2018
Posts: 25
Likes: 0
From: Kansas City
Year: 1993
Model: Cherokee(XJ)
Engine: 6 cyl.
seafoam has pulled my bacon outta the fire more than once. the handful of times mine started sputtering, i just waited 'til it got down to 1/4 of a tank & put in seafoam & filled it up. the sputtering stopped.
CF Veteran

Joined: Jan 2015
Posts: 1,469
Likes: 26
From: North canaan Connecticut
Year: 01, 99, 98, 98,98
Model: Cherokee
Engine: 4.0
I was always told growing up that an engine running lean will blow white smoke. This topic is very highly debated though. I have witnessed it myself on motorcycles and other small engine powered vehicles.
I have also seen an engine that is not completely burning fuel for one reason or another will blow unburned fuel out the exhaust and it's white. Not sure if it's a mist cloud of unburned fuel or the result of unburned fuel hitting the hot exhaust. It most definitely has a strong gas odor, not the sweet odor of burning coolant.
I have also seen an engine that is not completely burning fuel for one reason or another will blow unburned fuel out the exhaust and it's white. Not sure if it's a mist cloud of unburned fuel or the result of unburned fuel hitting the hot exhaust. It most definitely has a strong gas odor, not the sweet odor of burning coolant.
I was always told growing up that an engine running lean will blow white smoke. This topic is very highly debated though. I have witnessed it myself on motorcycles and other small engine powered vehicles.
I have also seen an engine that is not completely burning fuel for one reason or another will blow unburned fuel out the exhaust and it's white. Not sure if it's a mist cloud of unburned fuel or the result of unburned fuel hitting the hot exhaust. It most definitely has a strong gas odor, not the sweet odor of burning coolant.
I have also seen an engine that is not completely burning fuel for one reason or another will blow unburned fuel out the exhaust and it's white. Not sure if it's a mist cloud of unburned fuel or the result of unburned fuel hitting the hot exhaust. It most definitely has a strong gas odor, not the sweet odor of burning coolant.
Anybody old enough to remember that? Lol
CF Veteran

Joined: Nov 2015
Posts: 3,636
Likes: 469
From: Southern OH
Year: 1997
Model: Cherokee(XJ)
Engine: 4.0
That's funny, a few years ago a guy that lived down the street from me had an early 90s model Ford Ranger that had that problem. He said the shop told him it was a bad transmission solenoid causing it to smoke, I thought that was crazy, how can a solenoid in the transmission make the engine smoke? But now that makes sense.
That's funny, a few years ago a guy that lived down the street from me had an early 90s model Ford Ranger that had that problem. He said the shop told him it was a bad transmission solenoid causing it to smoke, I thought that was crazy, how can a solenoid in the transmission make the engine smoke? But now that makes sense.
Last edited by Bugout4x4; Feb 21, 2018 at 09:02 PM.
Man I hate these open ended question threads like this. We need to know if we were wrong just as much as if we were right and able to help or not. Without closure it was all wasted time and effort and no one learned a damned thing from it. Too many of these and it makes you not even want to try to help.


