puttputtputt/backfire?
#1
Newbie
Thread Starter
Join Date: Feb 2009
Location: indiana
Posts: 25
Likes: 0
Received 0 Likes
on
0 Posts
Year: 2000
Model: Cherokee
Engine: 4.0 i6
puttputtputt/backfire?
okay here we go... had a minor putput coming out of the exaust. maybe 1 putt per 10 seconds...THEN i was told to change the spark plugs, possibly due to old plugs there was a poor spark on one or two cyl. makes sense right? NO after i changed the spark plugs it started putting more frequently and at larger scales. now i was informed there could be a possible carbon build up in a few cyl. and that adding some kind of fuel inj.cleaner would lessen that problem. now i have used this before in the past but not recently.what kind of damage could come from running the jeep like this without fixing it? I just need some input from more exp. jeep drivers before i spend a million dollars in some shop thank you all
#2
Member
Join Date: Apr 2009
Location: Canada
Posts: 242
Likes: 0
Received 1 Like
on
1 Post
Year: 2000
Model: Cherokee
Engine: 4.0L (242 CID) I6 MPI "Power Tech"
Take ten bucks and trade it in for a can of seafoam.
Then dump half the can into your tb and the other half into your tank.
Enjoy the smoke show, and see if it fixes your putput problem.
Then dump half the can into your tb and the other half into your tank.
Enjoy the smoke show, and see if it fixes your putput problem.
#5
Newbie
Thread Starter
Join Date: Feb 2009
Location: indiana
Posts: 25
Likes: 0
Received 0 Likes
on
0 Posts
Year: 2000
Model: Cherokee
Engine: 4.0 i6
tb=throttle body. >.> duh. okay so he says pour half in the tb and then the other half in the tank, ive read a few reviews and it says not to leave the seafoam in. do an oil change. but when i changed my plugs, yesterday, i changed my oil. and added stp oil treatment as well as a new filter. now am i safe to drive with that oil or do i need to change within 500m
#6
Member
Join Date: Apr 2009
Location: Canada
Posts: 242
Likes: 0
Received 1 Like
on
1 Post
Year: 2000
Model: Cherokee
Engine: 4.0L (242 CID) I6 MPI "Power Tech"
That's if you are adding seafoam to your oil. Putting it in the throttle body will clean out the fuel system. So no, you won't need an oil change.
#7
Newbie
Thread Starter
Join Date: Feb 2009
Location: indiana
Posts: 25
Likes: 0
Received 0 Likes
on
0 Posts
Year: 2000
Model: Cherokee
Engine: 4.0 i6
okay
Can I eliminate the possibility of a spark coil being crazy craked. That would cause a big misfire and cause my engine to shake violently if I am correct. Wich its not doing that, its just puttin around
Trending Topics
#8
Senior Member
Join Date: Oct 2008
Location: Port Orange, FL
Posts: 871
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1993, 1994
Model: Cherokee
Engine: 4.0L HO
Well, that depends. If it's just an intermittent miss, it may be more difficult to notice. I suppose it could also be an indication of a bad crank position sensor. But I'd try the seafoam first, worst case scenario is you clean out the gunk from the engine and it's still acting wonky.
#11
Senior Member
Join Date: Jan 2010
Location: MI
Posts: 712
Likes: 0
Received 0 Likes
on
0 Posts
Year: 2000
Model: Cherokee
Engine: 4.0 I6
#12
Newbie
Thread Starter
Join Date: Feb 2009
Location: indiana
Posts: 25
Likes: 0
Received 0 Likes
on
0 Posts
Year: 2000
Model: Cherokee
Engine: 4.0 i6
just bout seafoam
Were gonna see how this goes. how long should i wait to drive? How long should I Rev the engine for? And ps. Ive already had to change my crankshaft position sensor! Dirty little thing. Nasty to change.
#13
Newbie
Thread Starter
Join Date: Feb 2009
Location: indiana
Posts: 25
Likes: 0
Received 0 Likes
on
0 Posts
Year: 2000
Model: Cherokee
Engine: 4.0 i6
okay.
Absolutely. No smoke. Just more putting and spewing of liquid from the pipe And when I was pouring it into the tb, every drop. I'm talkin like very little. Not even a lid full that I poured it would almost shut down. So I'm beat
#14
Senior Member
Join Date: Jan 2010
Location: MI
Posts: 712
Likes: 0
Received 0 Likes
on
0 Posts
Year: 2000
Model: Cherokee
Engine: 4.0 I6
With your Jeep running, take your oil fill cap off and when you do that, does it want to stall, does it rev up or does it stay the same?