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Exhaust Inst smooth

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Old Jul 12, 2011 | 09:36 PM
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From: Dayton, Ohio
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Default Exhaust Inst smooth

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?

Last edited by Zack92MJ; Jul 13, 2011 at 02:14 PM.
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Old Jul 12, 2011 | 09:42 PM
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Mine comes out in puffs lol. Any performance problems? Hesitation?
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Old Jul 12, 2011 | 09:58 PM
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Each "puff" is a exhaust pulse. Normal.
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Old Jul 12, 2011 | 10:07 PM
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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.
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Old Jul 13, 2011 | 08:57 AM
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Oh okay gotcha, yeah they seem pretty steady, just in puffs haha
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Old Jul 13, 2011 | 09:07 AM
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What a goob lol
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Old Jul 13, 2011 | 02:15 PM
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Originally Posted by 94JeepCherokeeMan
Mine comes out in puffs lol. Any performance problems? Hesitation?

Um actually yeah I guess there is, it kinda hesitates from a stop and It gets really bogged down going up a steep long up hill
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Old Jul 13, 2011 | 04:43 PM
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Originally Posted by Zacks98
Um actually yeah I guess there is, it kinda hesitates from a stop and It gets really bogged down going up a steep long up hill
Are you flooring it up hill and it still bogs down? Mine will bog when its in a high gear up hill, but as soon as a put the peddle to the metal it shifts down and away we go!
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Old Jul 13, 2011 | 08:44 PM
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Originally Posted by OOdynamite
Are you flooring it up hill and it still bogs down? Mine will bog when its in a high gear up hill, but as soon as a put the peddle to the metal it shifts down and away we go!

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.
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Old Jul 14, 2011 | 12:23 AM
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From: Southern Idaho
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When was the last tune up? Check for vacuum leaks, clean your throttle body and IAC, and maybe run some injector cleaner through it...
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Old Jul 14, 2011 | 01:10 AM
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I would go with plugs/ wires,, maybe fuel additive?
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Old Jul 14, 2011 | 09:30 AM
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Originally Posted by 94cherokee4x4
I would go with plugs/ wires,, maybe fuel additive?

X 2
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Old Jul 14, 2011 | 02:37 PM
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Originally Posted by 94cherokee4x4
I would go with plugs/ wires,, maybe fuel additive?
All new just add Lucius oil to it and im running 87 oct
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Old Jul 14, 2011 | 04:25 PM
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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
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Old Jul 14, 2011 | 05:05 PM
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Originally Posted by 94JeepCherokeeMan
When was the last tune up? Check for vacuum leaks, clean your throttle body and IAC, and maybe run some injector cleaner through it...
I have no idea, I got it at an auto auction for like 1.3k I cleaned both of those the other day


Originally Posted by 94JeepCherokeeMan
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
Yep I am..I may look dumb, but im not that dumb. hahah
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