Jeep Cherokee Forum

Jeep Cherokee Forum (https://www.cherokeeforum.com/)
-   Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here (https://www.cherokeeforum.com/f2/)
-   -   Exhaust Inst smooth (https://www.cherokeeforum.com/f2/exhaust-inst-smooth-96193/)

Zack92MJ 07-12-2011 09:36 PM

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?

94JeepCherokeeMan 07-12-2011 09:42 PM

Mine comes out in puffs lol. Any performance problems? Hesitation?

djb383 07-12-2011 09:58 PM

Each "puff" is a exhaust pulse. Normal.

4.3L XJ 07-12-2011 10:07 PM

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.

Zack92MJ 07-13-2011 08:57 AM

Oh okay gotcha, yeah they seem pretty steady, just in puffs haha

94JeepCherokeeMan 07-13-2011 09:07 AM

What a goob lol

Zack92MJ 07-13-2011 02:15 PM


Originally Posted by 94JeepCherokeeMan (Post 1085286)
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

OOdynamite 07-13-2011 04:43 PM


Originally Posted by Zacks98 (Post 1086462)
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!:guns:

Zack92MJ 07-13-2011 08:44 PM


Originally Posted by OOdynamite (Post 1086672)
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!:guns:


No I didnt give it more gas, i stayed light on the peddeling cause it sounded cool,,that was probably my problem :oops: 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.

94JeepCherokeeMan 07-14-2011 12:23 AM

When was the last tune up? Check for vacuum leaks, clean your throttle body and IAC, and maybe run some injector cleaner through it...

Phragle 07-14-2011 01:10 AM

I would go with plugs/ wires,, maybe fuel additive?

94JeepCherokeeMan 07-14-2011 09:30 AM


Originally Posted by 94cherokee4x4 (Post 1087600)
I would go with plugs/ wires,, maybe fuel additive?


X 2

Zack92MJ 07-14-2011 02:37 PM


Originally Posted by 94cherokee4x4 (Post 1087600)
I would go with plugs/ wires,, maybe fuel additive?

All new just add Lucius oil to it and im running 87 oct

94JeepCherokeeMan 07-14-2011 04:25 PM

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

Zack92MJ 07-14-2011 05:05 PM


Originally Posted by 94JeepCherokeeMan (Post 1087468)
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 (Post 1088761)
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


All times are GMT -5. The time now is 09:47 PM.


© 2024 MH Sub I, LLC dba Internet Brands