Exhaust Inst smooth
Thread Starter
CF Veteran
Joined: Jun 2011
Posts: 2,460
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From: Dayton, Ohio
Year: 1992
Model: Comanche
Engine: 4.0
Bit of a random question, but what does it mean if when you put your hand over the tail pipe the air comes out in sorta puffs instead of a smooth airflow?
Miss fire?
Miss fire?
Last edited by Zack92MJ; Jul 13, 2011 at 02:14 PM.
CF Veteran
Joined: Aug 2008
Posts: 6,588
Likes: 495
From: Chico, CA
Year: 1986
Model: Cherokee
Engine: 4.3L with headers and full 3" exhaust system
If you are getting random puffs, it might mean a burned valve or miss. Hold a dollar bill from above so that the bottom gets hit by the exhaust. It should flutter smoothly. If not, you might want to do a compression test.
Thread Starter
CF Veteran
Joined: Jun 2011
Posts: 2,460
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From: Dayton, Ohio
Year: 1992
Model: Comanche
Engine: 4.0
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CF Veteran
Joined: Oct 2010
Posts: 2,412
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From: York PA/State College PA
Year: 2001
Model: Cherokee
Engine: 4.0L I6
Thread Starter
CF Veteran
Joined: Jun 2011
Posts: 2,460
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From: Dayton, Ohio
Year: 1992
Model: Comanche
Engine: 4.0
No I didnt give it more gas, i stayed light on the peddeling cause it sounded cool,,that was probably my problem
My buddy looked over at me and said "dude you jeep is loud as s*** right now and so deep sounding..its awesome, do you think I could get a glass pack for my corolla?!" haha No but it does have a little bit of hesitation when going from a stop, but once I'm over like 5 it goes away.
CF Veteran
Joined: Jun 2011
Posts: 1,023
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From: Southern Idaho
Year: 1994
Model: Cherokee
Engine: 4.0 L/242 CID I-6 High Output MFI
When was the last tune up? Check for vacuum leaks, clean your throttle body and IAC, and maybe run some injector cleaner through it...
Thread Starter
CF Veteran
Joined: Jun 2011
Posts: 2,460
Likes: 0
From: Dayton, Ohio
Year: 1992
Model: Comanche
Engine: 4.0
CF Veteran
Joined: Jun 2011
Posts: 1,023
Likes: 1
From: Southern Idaho
Year: 1994
Model: Cherokee
Engine: 4.0 L/242 CID I-6 High Output MFI
You ARE using the lucas fuel injector cleaner, right? Don't use the oil stabilizer, you'll just be paying more than necessary for 80W gear oil lol... I use the lucas injector cleaner
Thread Starter
CF Veteran
Joined: Jun 2011
Posts: 2,460
Likes: 0
From: Dayton, Ohio
Year: 1992
Model: Comanche
Engine: 4.0
Yep I am..I may look dumb, but im not that dumb. hahah
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